Preface |
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vii | |
List of Abbreviations |
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ix | |
Editors |
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xiii | |
Contributors |
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xv | |
1 In-Vitro and In-Vivo Tools in Emerging Drug Delivery Scenario: Challenges and Updates |
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1 | (24) |
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2 | (1) |
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1.2 In-Vitro and In-Vivo Assessment: Why Is It Needed Particularly for NDDS? |
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3 | (3) |
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1.2.1 Challenges-In-Vitro Studies |
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4 | (2) |
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1.2.1.1 Particle Size, Zeta Potential and Stability |
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4 | (1) |
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1.2.1.2 Dissolution/Release Studies |
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5 | (1) |
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1.2.2 Challenges-In-Vivo Studies |
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6 | (1) |
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1.3 In-Vitro Characterization of NDDS |
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6 | (9) |
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1.3.1 Product Quality Attributes |
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7 | (3) |
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7 | (1) |
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8 | (1) |
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1.3.1.3 Encapsulated Systems |
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8 | (1) |
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1.3.1.4 Lipid-Based Systems |
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9 | (1) |
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1.3.2 Product Performance Attributes |
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10 | (18) |
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1.3.2.1 In-Vitro Drug Release Studies |
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10 | (1) |
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11 | (1) |
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1.3.2.3 Electrolyte Stability Study |
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11 | (1) |
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1.3.2.4 Cell Culture Studies |
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12 | (1) |
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1.3.2.5 Cellular Uptake and Cell Binding Studies |
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12 | (1) |
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1.3.2.6 In-Vitro Cytotoxicity Studies |
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13 | (1) |
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14 | (1) |
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1.3.2.8 Apoptosis and Mitochondrial Dysfunction |
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14 | (1) |
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1.4 In-Vivo Performance Evaluation of NDDS |
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15 | (2) |
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17 | (1) |
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18 | (1) |
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19 | (6) |
2 Intraoral and Peroral Drug Delivery Systems |
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25 | (26) |
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26 | (2) |
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2.2 Evaluation of Intraoral Drug Delivery Systems |
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28 | (8) |
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2.2.1 Evaluation of Taste Masking |
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28 | (1) |
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2.2.2 In-Vitro Mucoadhesion Tests |
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29 | (1) |
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2.2.3 In-Vitro Dissolution Testing of Intraoral Dosage Forms |
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29 | (5) |
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2.2.3.1 Dissolution of Sublingual Tablets |
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29 | (1) |
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2.2.3.2 Dissolution of Chewing Gum |
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30 | (3) |
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2.2.3.3 Dissolution of Buccal Patches |
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33 | (1) |
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2.2.3.4 Dissolution of Buccal Films |
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33 | (1) |
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2.2.3.5 Dissolution of Lozenges |
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33 | (1) |
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2.2.3.6 Dissolution of Buccal Mucoadhesive Tablets |
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33 | (1) |
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2.2.4 In-Vitro Drug Permeation Studies |
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34 | (1) |
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35 | (1) |
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35 | (1) |
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2.2.5.2 Buccal Absorption Test |
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35 | (1) |
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2.3 Models for Assessing Intestinal Permeability |
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36 | (6) |
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37 | (1) |
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2.3.1.1 Flow-Through Diffusion Cells |
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37 | (1) |
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38 | (3) |
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2.3.2.1 Intestinal Perfusion |
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39 | (1) |
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2.3.2.2 Intestinal Loop Method |
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40 | (1) |
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2.3.2.3 Intestinal Vascular Cannulation |
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40 | (1) |
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41 | (11) |
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41 | (1) |
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2.3.3.2 Use of Gamma Scintigraphy |
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41 | (1) |
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2.3.3.3 Use of Pharmacoscintigraphy |
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41 | (1) |
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2.3.3.4 In-Vivo Imaging Systems |
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42 | (1) |
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2.4 In-Vitro-In-Vivo Correlations |
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42 | (2) |
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44 | (7) |
3 Transdermal Drug Delivery Systems |
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51 | (28) |
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52 | (4) |
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3.1.1 Skin Structure: Anatomy, Physiology and Barrier Functions |
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53 | (1) |
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3.1.2 Principles and Different Routes of Penetration Across the Skin |
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54 | (2) |
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3.1.2.1 Transepidermal Route |
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55 | (1) |
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3.1.2.2 Transfollicular Routes |
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55 | (1) |
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3.2 Factors Affecting Permeation Across the Skin |
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56 | (1) |
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3.2.1 Physiochemical Factors of Permeant |
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56 | (1) |
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3.2.2 Formulation Factors |
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56 | (1) |
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3.2.3 Physiological Factors |
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56 | (1) |
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3.3 Methods to Enhance Skin Permeability |
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57 | (6) |
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57 | (1) |
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58 | (5) |
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58 | (3) |
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61 | (1) |
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3.3.2.3 Sonophoresis and Phonophoresis |
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62 | (1) |
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62 | (1) |
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62 | (1) |
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62 | (1) |
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3.4 Experimental Methods to Assess Skin Permeability |
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63 | (8) |
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63 | (5) |
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3.4.1.1 Different Parameters for Assessing the Transport or Permeation Across the Skin |
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63 | (1) |
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64 | (2) |
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3.4.1.3 Different Type of Membrane |
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66 | (1) |
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3.4.1.4 Integrity Testing of Membrane |
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67 | (1) |
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68 | (1) |
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3.4.2.1 Tape Stripping Methods |
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68 | (1) |
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3.4.2.2 Confocal Scanning Laser Microscopic Techniques |
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68 | (1) |
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69 | (1) |
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69 | (1) |
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3.4.3.2 Plasma Concentration Time Profile after Transdermal Delivery (Pharmacokinetic) |
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70 | (1) |
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3.4.3.3 Pharmacodynamic Activity Relationship |
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70 | (1) |
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3.4.4 In Silico Methods (Software-Based Prediction of Permeation for Transdermal Delivery) |
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70 | (1) |
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3.5 Skin Sensitization and Irritation Studies |
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71 | (2) |
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3.5.1 Evaluation of Skin Sensitization and Irritation |
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71 | (2) |
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3.6 Emerging Technologies for Transdermal Drug Delivery |
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73 | (1) |
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3.6.1 Microneedle-Based Transdermal Drug Delivery |
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73 | (1) |
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3.6.2 Feedback-Controlled Transdermal Drug Delivery |
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74 | (1) |
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74 | (5) |
4 Nasal and Pulmonary Drug Delivery Systems |
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79 | (56) |
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80 | (1) |
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4.2 Anatomy and Physiology of the Respiratory Tract |
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81 | (3) |
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4.3 Anatomy and Physiology of the Nasal Mucosa |
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84 | (1) |
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4.4 Challenges and Desired Target Site for Drug Deposition |
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85 | (4) |
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4.4.1 Challenges and Desired Target Site for Drug Deposition from Nasal Delivery |
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85 | (2) |
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4.4.1.1 Mucociliary Clearance |
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85 | (1) |
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4.4.1.2 Enzymatic Activity |
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86 | (1) |
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4.4.1.3 Characteristic of the Drug Molecules |
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86 | (1) |
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4.4.2 Challenges and Desired Target Site for Drug Deposition for Pulmonary Delivery |
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87 | (2) |
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4.4.2.1 Mucociliary Clearance |
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87 | (1) |
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4.4.2.2 Macrophage Uptake and Alveolar Clearance |
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88 | (1) |
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4.5 Approaches to Overcome Challenges in Drug Delivery |
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89 | (4) |
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4.5.1 Approaches to Overcome Challenges in Nasal Delivery |
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89 | (3) |
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4.5.1.1 Absorption Promoters/Absorption Modulators |
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89 | (1) |
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4.5.1.2 Nanotechnology-Based Carriers |
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90 | (1) |
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4.5.1.3 Prodrug Approach and Structural Modifications |
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91 | (1) |
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4.5.2 Approaches to Overcome Challenges in Pulmonary Drug Delivery |
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92 | (1) |
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4.5.2.1 Aerodynamic Particle Size |
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92 | (1) |
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4.5.2.2 Limiting the Lung Clearance Process |
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93 | (1) |
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4.6 Particle Deposition Mechanism and Factors Affecting Nasal and Pulmonary Drug Delivery |
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93 | (2) |
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94 | (1) |
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94 | (1) |
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94 | (1) |
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95 | (1) |
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4.7 Formulation Considerations |
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95 | (4) |
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4.7.1 Nasal Formulation Considerations |
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95 | (1) |
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4.7.2 Novel Pulmonary Drug Delivery Formulation Considerations |
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95 | (4) |
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96 | (1) |
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97 | (1) |
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4.7.2.3 Micro and Nanoparticulate Polymeric Systems |
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97 | (1) |
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4.7.2.4 Supermagnetic Nanoparticles |
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98 | (1) |
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99 | (1) |
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4.8 Manufacturing Methods for the Formulation of Nasal and Pulmonary Drug Delivery Systems |
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99 | (5) |
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100 | (1) |
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4.8.2 Spray-Freeze-Drying (SFD) |
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101 | (1) |
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4.8.3 Supercritical Fluid (SCF) Technology |
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101 | (1) |
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4.8.4 Solvent Precipitation Method |
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102 | (1) |
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4.8.4.1 Sonocrystallization |
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102 | (1) |
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4.8.5 Emulsification/Solvent Evaporation |
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102 | (1) |
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4.8.6 Particle Replication in a Nonwetting Template (PRINT) |
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103 | (1) |
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4.9 In-Vitro, In-Vivo and Ex Vivo Delivery: Considerations and Approaches |
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104 | (12) |
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4.9.1 Nasal Drug Delivery |
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104 | (2) |
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4.9.1.1 Cell Culture Models |
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104 | (1) |
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4.9.1.2 Ex Vivo Permeation Models for Nasal Drug Delivery |
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105 | (1) |
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4.9.1.3 In-Vivo Animal Models for Nasal Drug Delivery |
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106 | (1) |
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4.9.2 Pulmonary Drug Delivery |
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106 | (12) |
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4.9.2.1 In-Vitro Pulmonary Epithelial Cell Models |
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106 | (4) |
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4.9.2.2 In-Vitro Drug Release Studies |
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110 | (3) |
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4.9.2.3 Ex Vivo Lung Tissue Models |
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113 | (1) |
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4.9.2.4 In-Vivo Animal Models |
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114 | (2) |
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4.10 In-Vitro-In-Vivo Correlations for Pulmonary Drug Delivery |
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116 | (2) |
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4.11 Chemistry, Manufacturing, and Controls Consideration for Scale-Up |
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118 | (2) |
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4.11.1 Toxicological Studies |
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118 | (1) |
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4.11.2 PK-PD Considerations |
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118 | (1) |
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119 | (1) |
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120 | (1) |
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121 | (1) |
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121 | (14) |
5 Ocular Drug Delivery Systems |
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135 | (38) |
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137 | (1) |
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5.2 General Evaluation Parameters |
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137 | (3) |
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137 | (1) |
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138 | (1) |
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5.2.3 Evaluation of Rate and Extent of Delivery in Different Segments of Eye |
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138 | (2) |
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5.2.3.1 In-Vitro Release Study |
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138 | (1) |
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5.2.3.2 In-Vitro Permeation Study |
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139 | (1) |
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5.2.3.3 In-Vitro Cell Culture Models |
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139 | (1) |
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5.3 Overview of Conventional ODD Systems |
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140 | (2) |
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5.3.1 Ophthalmic Solutions and Suspensions |
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140 | (1) |
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5.3.1.1 Characterization of Ophthalmic Solutions and Suspensions |
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141 | (1) |
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5.3.2 Ointments and Emulsions |
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141 | (1) |
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5.3.2.1 Characterization of Ophthalmic Ointments and Emulsions |
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142 | (1) |
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5.4 Novel Ocular Drug Delivery Systems |
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142 | (6) |
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5.4.1 In Situ Gelling Systems |
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142 | (1) |
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5.4.1.1 Characterization of In Situ Gelling Systems |
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142 | (1) |
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143 | (1) |
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5.4.2.1 Characterization of Mucoadhesive Gels |
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144 | (1) |
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144 | (1) |
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5.4.3.1 Characterization of Contact Lenses |
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145 | (1) |
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145 | (1) |
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5.4.4.1 Characterization of Implants |
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145 | (1) |
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146 | (1) |
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5.4.5.1 Characterization of Microneedles |
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146 | (1) |
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147 | (1) |
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5.4.6.1 Characterization of Ocular Inserts |
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147 | (1) |
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5.4.7 Collagen Shields, Gels, Hydrogels, and Sponges |
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147 | (1) |
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5.4.7.1 Characterization of Collagen Shields, Gels, Hydrogels, Sponges |
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147 | (1) |
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5.5 Nanosystem-Based Ocular Drug Delivery |
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148 | (4) |
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5.5.1 Liposomes and Niosomes |
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148 | (1) |
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5.5.1.1 Characterization of Vesicular Drug Delivery Systems (Liposomes/Niosomes) |
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148 | (1) |
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5.5.2 Microemulsion and Nanoemulsions |
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149 | (1) |
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5.5.2.1 Characterization of Micro/Nanoemulsions |
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149 | (1) |
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150 | (1) |
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5.5.3.1 Characterization of Nanosuspensions |
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150 | (1) |
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5.5.4 Nanoparticles and Polymeric Micelles |
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151 | (1) |
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5.5.4.1 Characterization of Particulate Systems (Nanoparticles/Polymeric Micelles) |
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151 | (1) |
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152 | (1) |
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5.5.5.1 Characterization of Dendrimers |
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152 | (1) |
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5.6 Safety and Toxicity Evaluation: In-Vitro, In-Vivo and Ex Vivo Methods |
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152 | (2) |
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153 | (1) |
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153 | (1) |
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5.6.2.1 In-Vivo Draize Eye Test |
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153 | (1) |
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5.6.2.2 In-Vivo Low-Volume Eye Irritation Test |
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153 | (1) |
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5.7 In-Vivo and Ex Vivo Evaluation of Intraocular Parameters |
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154 | (8) |
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5.7.1 Study of Corneal Penetration Process |
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154 | (1) |
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5.7.2 Intraocular Pressure |
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154 | (1) |
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5.7.2.1 Acute Measurement of Intraocular Pressure |
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154 | (1) |
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5.7.3 Aqueous Humor Flow Rate |
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155 | (1) |
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5.7.4 Experimental Glaucoma |
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155 | (1) |
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5.7.5 Local Anesthesia of the Cornea |
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156 | (1) |
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5.7.6 Models of Eye Inflammation |
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156 | (5) |
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5.7.6.1 Allergic Conjunctivitis Model |
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156 | (1) |
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5.7.6.2 Corneal Inflammation Models |
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157 | (1) |
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5.7.6.3 Autoimmune Uveitis |
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158 | (1) |
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5.7.6.4 Endotoxin-Induced Uveitis Model |
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158 | (1) |
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5.7.6.5 UV-Induced Uveitis |
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158 | (1) |
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5.7.6.6 Ocular Inflammation Induced by Paracentesis |
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159 | (1) |
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5.7.6.7 Ocular Inflammation by Lens Proteins |
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159 | (1) |
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5.7.6.8 Proliferative Vitreoretinopathy in Rabbits |
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160 | (1) |
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5.7.7 In-Vivo Confocal Microscopy |
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161 | (1) |
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5.7.8 Ex Vivo and In-Vitro Tests Recommended by Federal Agencies |
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161 | (13) |
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5.7.8.1 Isolated/Enucleated Organ/Organotypic Methods |
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161 | (1) |
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5.7.8.2 Enucleated Eye Tests |
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162 | (1) |
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5.7.8.3 Non-Ocular Organotypic Models |
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162 | (1) |
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162 | (1) |
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163 | (10) |
6 Gastroretentive Drug Delivery Systems |
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173 | (36) |
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174 | (3) |
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6.1.1 Anatomy and Physiology of the Stomach |
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175 | (1) |
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6.1.2 Physicochemical Factors |
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176 | (1) |
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176 | (1) |
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176 | (1) |
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177 | (1) |
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6.1.2.4 Enzymatic Degradation |
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177 | (1) |
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6.1.3 Physiological Factors |
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177 | (1) |
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6.1.3.1 Mechanism of Absorption |
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177 | (1) |
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6.1.3.2 Microbial Degradation |
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177 | (1) |
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6.1.4 Biochemical Factors |
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177 | (1) |
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6.2 Concept and Significance of Gastroretention |
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177 | (14) |
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6.2.1 Suitable Drug Candidates for Gastroretention |
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179 | (1) |
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6.2.2 Various Strategies for Achieving Gastroretention |
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179 | (7) |
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6.2.2.1 Floating Drug Delivery Systems |
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179 | (3) |
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6.2.2.2 Noneffervescent Systems |
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182 | (1) |
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6.2.2.3 Low Density Due to Swelling |
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182 | (1) |
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6.2.2.4 Inherent Low-Density Systems |
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183 | (1) |
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6.2.2.5 Intragastric Osmotically Controlled DDS |
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184 | (1) |
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6.2.2.6 Effervescent Systems |
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185 | (1) |
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6.2.2.7 Limitations of FDDS |
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186 | (1) |
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6.2.3 High-Density Systems |
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186 | (1) |
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6.2.4 Bioadhesive Drug Delivery Systems |
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187 | (2) |
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6.2.4.1 Advantages of Bioadhesives |
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187 | (1) |
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6.2.4.2 Disadvantages of Bioadhesives |
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188 | (1) |
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6.2.5 Floating Bioadhesive Systems |
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189 | (1) |
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6.2.6 Size-Increasing (Expandable) Systems |
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189 | (2) |
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6.2.6.1 Systems Unfolding in the Stomach |
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189 | (1) |
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6.2.6.2 Systems Expanding Due to Swellable Excipients |
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190 | (1) |
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191 | (1) |
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6.2.7.1 Incorporation of Passage-Delaying Agents |
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191 | (1) |
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191 | (1) |
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6.3 Patented Technologies for Gastroretentive Drug Delivery Systems |
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191 | (1) |
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6.4 Characterization of Gastroretentive Dosage Forms |
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191 | (10) |
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6.4.1 Challenges Faced/Anticipated in Characterization of Gastroretentive Dosage Forms |
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191 | (3) |
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6.4.2 In-Vitro Characterization and Gastroretention Study |
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194 | (2) |
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6.4.2.1 Floating Capacity (Buoyancy) Study |
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194 | (1) |
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6.4.2.2 Mucoadhesion Study |
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194 | (1) |
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195 | (1) |
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6.4.2.4 Density of the Dosage Form |
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195 | (1) |
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6.4.2.5 In-Vitro Drug Release |
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195 | (1) |
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6.4.3 Bioavailability or Bioequivalence Studies |
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196 | (1) |
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6.4.3.1 In-Vivo Pharmacokinetics |
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196 | (1) |
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6.4.3.2 Pharmacokinetic Modeling and Simulation |
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197 | (1) |
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6.4.4 In-Vivo Visualization/Assessment of Gastroretention |
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197 | (15) |
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6.4.4.1 Gamma Scintigraphy |
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198 | (1) |
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199 | (1) |
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6.4.4.3 Magnetic Marker Monitoring |
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200 | (1) |
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200 | (1) |
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201 | (1) |
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6.4.4.6 13C Octanoic Acid Breath Test (13C-OBT) |
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201 | (1) |
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201 | (1) |
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202 | (7) |
7 Colon Targeted Drug Delivery Systems |
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209 | (28) |
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209 | (1) |
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7.2 Limitations and Challenges of Colonic Delivery |
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210 | (1) |
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7.3 Strategies for Targeting the Colon |
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211 | (1) |
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212 | (13) |
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7.4.1 Dosage Form-Related Evaluation |
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212 | (1) |
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7.4.2 Drug Release Studies In-Vitro Dissolution Test |
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212 | (8) |
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7.4.2.1 Conventional Dissolution Methods |
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214 | (2) |
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7.4.2.2 In-Vitro Fermentation Studies |
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216 | (4) |
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7.4.2.3 Isolated Bacterial Cultures |
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220 | (1) |
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7.4.3 Tests for Bioadhesion |
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220 | (3) |
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7.4.4 Cell Line Studies: In-Vitro Permeability, Toxicity Evaluation and Adhesion Studies |
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223 | (2) |
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7.4.5 Miscellaneous Studies |
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225 | (1) |
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7.5 In-Vivo Assessment Techniques |
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225 | (4) |
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225 | (2) |
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227 | (2) |
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229 | (1) |
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230 | (1) |
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231 | (6) |
8 Brain Targeted Drug Delivery Systems |
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237 | (46) |
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238 | (1) |
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238 | (8) |
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239 | (2) |
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8.2.2 Strategies to Overcome the BBB |
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241 | (5) |
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8.2.2.1 Increasing the Permeability or Influx of Drugs Across the BBB |
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243 | (1) |
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8.2.2.2 Disruption of BBB |
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244 | (2) |
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246 | (13) |
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8.3.1 Isolated Brain Capillaries |
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247 | (1) |
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247 | (4) |
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8.3.2.1 Monoculture Models |
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247 | (1) |
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248 | (1) |
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249 | (1) |
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8.3.2.4 Human Stem Cell-Derived Models |
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250 | (1) |
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251 | (1) |
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8.3.4 Epithelial Cell Lines |
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252 | (1) |
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8.3.5 Parallel Artificial Membrane Permeability Assay |
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252 | (1) |
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8.3.6 Immobilized Artificial Membranes |
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253 | (1) |
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8.3.7 Optimization of Cell-Based Models |
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253 | (1) |
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8.3.8 Neurotoxicity Assessment |
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253 | (3) |
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8.3.8.1 Subcellular Systems |
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254 | (1) |
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255 | (1) |
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256 | (3) |
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8.4 In-Vivo Evaluation of Brain-Targeting Methodologies |
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259 | (10) |
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8.4.1 Pharmacokinetic Studies |
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259 | (9) |
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8.4.1.1 Invasive Techniques |
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260 | (6) |
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8.4.1.2 Non-Invasive Techniques |
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266 | (2) |
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8.4.2 In-Vivo Biodistribution by Radioisotopes |
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268 | (1) |
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8.4.3 Pharmacodynamic Approach |
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268 | (1) |
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8.4.4 Capillary Depletion Studies |
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269 | (1) |
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8.5 Anticipated Challenges and Future Perspectives |
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269 | (2) |
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271 | (12) |
9 Parenteral Drug Delivery Systems |
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283 | (36) |
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9.1 Parenteral Drug Delivery Systems |
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283 | (1) |
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9.2 Controlled-Release Drug Delivery Systems |
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284 | (10) |
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9.2.1 In-Vitro Drug Release Studies for Controlled Drug Delivery Systems |
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285 | (6) |
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9.2.1.1 Compendial Dissolution Methods |
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285 | (1) |
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9.2.1.2 Custom-Design Methods |
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286 | (5) |
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291 | (1) |
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9.2.2.1 Accelerated In-Vitro Release Testing |
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291 | (1) |
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9.2.3 Implications of In-Vitro Release Testing |
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292 | (1) |
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9.2.4 In-Vivo Studies for Controlled Drug Delivery Systems |
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293 | (1) |
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9.2.5 In-Vitro-In-Vivo Correlations (IVIVC) |
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294 | (1) |
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9.3 Targeted Drug Delivery Systems |
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294 | (9) |
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299 | (1) |
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9.3.2 Size and Size Distribution |
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300 | (1) |
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300 | (1) |
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9.3.4 Entrapment/Drug Loading Efficiency |
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301 | (1) |
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9.3.5 Drug Release Studies |
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301 | (1) |
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9.3.6 Biodistribution Studies |
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302 | (1) |
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303 | (16) |
Appendix: Characterization Parameter and Common Characterization Tools |
|
319 | (4) |
Index |
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323 | |