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In Vitro Drug Release Testing of Special Dosage Forms


In Vitro Drug Release Testing of Special Dosage Forms


Advances in Pharmaceutical Technology 1. Aufl.

von: Nikoletta Fotaki, Sandra Klein

125,99 €

Verlag: Wiley
Format: EPUB
Veröffentl.: 11.10.2019
ISBN/EAN: 9781118675830
Sprache: englisch
Anzahl Seiten: 312

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Beschreibungen

<p><b>Guides readers on the proper use of in vitro drug release methodologies in order to evaluate the performance of special dosage forms</b></p> <p>In the last decade, the application of drug release testing has widened to a variety of novel/special dosage forms. In order to predict the in vivo behavior of such dosage forms, the design and development of the in vitro test methods need to take into account various aspects, including the dosage form design and the conditions at the site of application and the site of drug release. This unique book is the first to cover the field of in vitro release testing of special dosage forms in one volume. Featuring contributions from an international team of experts, it presents the state of the art of the use of in vitro drug release methodologies for assessing special dosage forms’ performances and describes the different techniques required for each one.</p> <p><i>In Vitro Drug Release Testing of Special Dosage Forms</i> covers the in vitro release testing of: lipid based oral formulations; chewable oral drug products; injectables; drug eluting stents; inhalation products; transdermal formulations; topical formulations; vaginal and rectal delivery systems and ophthalmics. The book concludes with a look at regulatory aspects. </p> <ul> <li>Covers both oral and non-oral dosage forms</li> <li>Describes current regulatory conditions for in vitro drug release testing</li> <li>Features contributions from well respected global experts in dissolution testing</li> </ul> <p><i>In Vitro Drug Release Testing of Special Dosage Forms</i> will find a place on the bookshelves of anyone working with special dosage forms, dissolution testing, drug formulation and delivery, pharmaceutics, and regulatory affairs.</p>
<p>List of Contributors xvii</p> <p>Series Preface xix</p> <p>Preface xxi</p> <p><b>Part I Oral Dosage Forms 1</b></p> <p><b>1 Lipid‐Based Oral Formulations 3<br /></b><i>Murat Kilic, Aikaterini Avzoti, Jennifer Dressman, and Christos Reppas</i></p> <p>1.1 Introduction 3</p> <p>1.2 Levels of Release Testing for Lipid‐Based Dosage Forms 7</p> <p>1.2.1 Dilution 7</p> <p>1.2.2 Dispersion and Drug Release 9</p> <p>1.2.3 Digestion 13</p> <p>1.2.4 Assessing Direct Uptake from the Vehicle 16</p> <p>1.3 Case Examples 16</p> <p>1.3.1 Compendial or Fed State Biorelevant Media to Evaluate Fenofibrate Lipid‐based Formulations? 17</p> <p>1.3.2 Paddle or Biodis Method for Testing a Lipid‐based Formulation? 17</p> <p>1.3.3 Does Nifedipine Precipitate after Administration as a Soft Gelatin Capsule? 19</p> <p>1.3.4 Screening of Indomethacin Lipid‐Based Formulations 19</p> <p>1.3.5 Effect of Supersaturation on <i>In Vivo </i>Performance 22</p> <p>1.4 Conclusions and Future Directions 22</p> <p>References 23</p> <p><b>2 Chewable Oral Drug Products 27<br /></b><i>Johannes Kramer, Jayachandar Gajendran, Alexis Guillot, and Abdulwahab Barakat</i></p> <p>2.1 Introduction 27</p> <p>2.1.1 Dosage Forms for Which Drug Release Occurs in the Oral Cavity 27</p> <p>2.1.2 Chewable Dosage Forms Classification 28</p> <p>2.2 The Oral Cavity 30</p> <p>2.2.1 Anatomy of the Oral Cavity 30</p> <p>2.2.2 Physiological Conditions from the Perspective of <i>In Vivo </i>Performance 30</p> <p>2.2.3 Mechanical Forces 31</p> <p>2.2.4 Need for Masticatory Action 31</p> <p>2.2.5 Saliva Composition 32</p> <p>2.2.6 Oral Absorption vs. Subsequent Absorption in the GI Tract 32</p> <p>2.3 Drug Substances Used in Chewable Dosage Forms 33</p> <p>2.4 Technology 33</p> <p>2.4.1 Chewable Tablets 34</p> <p>2.4.2 Medicated Gums 34</p> <p>2.4.2.1 Conventional Method (Extrusion) 34</p> <p>2.4.2.2 Direct Compression Method 34</p> <p>2.4.3 Soft Gel Capsules as Chewable Dosage Forms 35</p> <p>2.5 Pharmacopoeial Requirements 35</p> <p>2.5.1 Chewable Tablets and Capsules 35</p> <p>2.5.1.1 US FDA and USP Requirements for <i>In Vitro </i>Performance Testing of Chewable Tablets 35</p> <p>2.5.1.2 Rationale for Use of the Reciprocating Cylinder Apparatus (USP Apparatus 3) 36</p> <p>2.5.1.3 Current Status of Drug Release/Dissolution Testing Apparatus for Chewable Drug Products 36</p> <p>2.5.2 Medicated Gums 36</p> <p>2.5.2.1 Rationale for <i>In Vitro </i>Performance Testing of Medicated Gums 41</p> <p>2.5.3 Apparatus for <i>In Vitro </i>Drug Release Testing of Medicated Gums 41</p> <p>2.5.3.1 Non‐Compendial Setup: A USP Apparatus 2‐based Method with Modified Gums 41</p> <p>2.5.4 Compendial Apparatus 44</p> <p>2.5.4.1 Ph.Eur. Chewing Apparatus A (Chapter 2.9.25) 44</p> <p>2.5.4.2 Ph.Eur. Chewing Apparatus B (Chapter 2.9.25) 44</p> <p>2.5.5 <i>In Vitro–In Vivo </i>Correlation (<i>IVIVC</i>) 45</p> <p>2.6 Summary and Conclusion 49</p> <p>References 50</p> <p><b>Part II Non-oral Dosage Forms 55</b></p> <p><b>3 Injectables 57<br /></b><i>Susan D’Souza</i></p> <p>3.1 Introduction 57</p> <p>3.2 Significance of <i>In Vitro </i>Release Testing 60</p> <p>3.3 Considerations in Method Development 61</p> <p>3.3.1 Sink Conditions 63</p> <p>3.3.2 Burst Release 63</p> <p>3.3.3 Stability of Drug 64</p> <p>3.3.4 Completeness of <i>In Vitro </i>Release 64</p> <p>3.3.5 Robustness of Technique 65</p> <p>3.3.6 Accelerated Release 65</p> <p>3.3.7 <i>In Vitro – In Vivo </i>Correlations (<i>IVIVCs</i>) 66</p> <p>3.4 <i>In Vitro </i>Release Methods 66</p> <p>3.4.1 Sample and Separate 67</p> <p>3.4.1.1 Volume of Release Media 67</p> <p>3.4.1.2 Agitation Conditions 67</p> <p>3.4.1.3 Sampling Techniques 67</p> <p>3.4.1.4 Sampling Volume 68</p> <p>3.4.2 Continuous Flow 68</p> <p>3.4.2.1 CF Setups 69</p> <p>3.4.2.2 Pumps and Flow Rates 70</p> <p>3.4.2.3 Sampling Techniques 70</p> <p>3.5 Dialysis Method 71</p> <p>3.5.1 Dialysis Setup 72</p> <p>3.5.2 Volume of Release Media 73</p> <p>3.5.3 Sampling Technique and Volume 73</p> <p>3.6 Accelerated <i>In Vitro </i>Release 74</p> <p>3.7 <i>In Vitro – In Vivo </i>Correlations (<i>IVIVC</i>s) 76</p> <p>References 78</p> <p><b>4 Drug‐Eluting Stents 87<br /></b><i>Anne Seidlitz</i></p> <p>4.1 Drug‐Eluting Stents: Combination Products at the Interface of Medical Devices and Medicinal Products 87</p> <p>4.2 DES Characteristics 88</p> <p>4.3 <i>In Vivo </i>Stent Position and the Resulting Challenges for <i>In Vitro </i>Release Testing of Coronary Stents 90</p> <p>4.4 Guidelines, Prerequisites, and General Recommendations on DES Testing 92</p> <p>4.5 Currently Used Test Methods 93</p> <p>4.5.1 Media 93</p> <p>4.5.2 Apparatus 96</p> <p>4.6 Toward More Biorelevant Testing Conditions and New Challenges for DES Testing 101</p> <p>4.7 Non‐Vascular Stents 107</p> <p>4.8 Drug‐Coated Balloons: An Alternative to DESs for a Wide Range of Indications? 108</p> <p>4.9 Concluding Remarks 109</p> <p>References 110</p> <p><b><i>5 In Vitro </i>Dissolution for Inhalation Products 119<br /></b><i>Annalisa Mercuri and Nikoletta Fotaki</i></p> <p>5.1 Introduction 119</p> <p>5.2 The Environment of the Human Lungs 120</p> <p>5.2.1 The Anatomy of Bronchi and Alveoli 121</p> <p>5.2.2 Airway Surface Liquid (ASL) 121</p> <p>5.2.2.1 The Composition of Humans Lung Fluids in the Disease State 123</p> <p>5.2.2.2 Surface Tension 125</p> <p>5.2.2.3 Mucus Production and Mucociliary Clearance 125</p> <p>5.3 Regulatory Perspectives and Current Practices for Testing Inhaled Products 125</p> <p>5.3.1 Compendial Methods for Testing Inhaled Products 126</p> <p>5.3.1.1 Andersen Cascade Impactor (ACI) 127</p> <p>5.3.1.2 Glass Twin Impinger 127</p> <p>5.3.1.3 Marple‐Miller Impactor (MMI) 129</p> <p>5.3.1.4 Multi‐Stage Liquid Impinger (MSLI) 129</p> <p>5.3.1.5 Next Generation Impactor (NGI) 130</p> <p>5.3.1.6 Analysis of the <i>In Vitro </i>Deposition Data of Inhaled Particles 130</p> <p>5.3.1.7 <i>In Vitro</i>–<i>In Vivo </i>Deposition Correlations 131</p> <p>5.3.2 Dissolution Methods for Inhaled Products 132</p> <p>5.3.2.1 Two‐Stage Impinger 133</p> <p>5.3.2.2 Horizontal Diffusion Cell 133</p> <p>5.3.2.3 Static Dissolution Cell 133</p> <p>5.3.2.4 Shaking Incubator 133</p> <p>5.3.2.5 Paddle Dissolution Apparatus (USP II Apparatus) 135</p> <p>5.3.2.6 Dialysis Membranes 136</p> <p>5.3.2.7 Flow‐through Cell (USP IV Apparatus) 137</p> <p>5.3.2.8 Transwell™ Method 137</p> <p>5.3.2.9 Franz Cell Method 137</p> <p>5.3.3 Dissolution Methods with Integrated Deposition and Cell Permeation Models 138</p> <p>5.4 Simulated Lung Fluids 139</p> <p>5.5 Pulmonary Biopharmaceutical Classification System 143</p> <p>5.6 Conclusions 143</p> <p>References 144</p> <p><b>6 Topicals and Transdermals 155<br /></b><i>Kailas Thakker</i></p> <p>6.1 Introduction 155</p> <p>6.2 <i>In Vitro </i>Release Studies for Topical Dosage Forms 156</p> <p>6.2.1 Drug Release from Semisolid Dosage Forms – Theory and Calculations 157</p> <p>6.2.2 Compendial Apparatus 158</p> <p>6.2.2.1 Vertical Diffusion Cell 158</p> <p>6.2.2.2 Immersion Cell 160</p> <p>6.2.2.3 USP Apparatus 4 163</p> <p>6.2.3 Method Development: Points to Consider 163</p> <p>6.2.3.1 Selection of the Receiving Medium 165</p> <p>6.2.3.2 Selection of the Membrane 166</p> <p>6.2.3.3 Apparatus Qualification 166</p> <p>6.2.3.4 Test Procedure 166</p> <p>6.2.4 Custom‐Designed Cells 167</p> <p>6.3 <i>In Vitro </i>Release Studies for Transdermal Systems 167</p> <p>6.3.1 Compendial Apparatus 168</p> <p>6.3.1.1 The Paddle over Disc Apparatus 168</p> <p>6.3.1.2 The Reciprocating Holder Apparatus 168</p> <p>6.4 Conclusions 171</p> <p>References 171</p> <p><b>7 Vaginal and Intrauterine Delivery Systems 177<br /></b><i>Sandra Klein and Katharina Tietz</i></p> <p>7.1 Vaginal and Uterine Anatomy and Physiology Relevant to Drug Delivery 177</p> <p>7.1.1 Vaginal Anatomy 177</p> <p>7.1.2 Vaginal Secretions/Vaginal Fluid 179</p> <p>7.1.3 Vaginal Microflora and pH 179</p> <p>7.1.4 Uterine Anatomy 179</p> <p>7.1.5 Cervix Anatomy 180</p> <p>7.1.6 Uterine and Cervical Secretions/Cervical and Uterine Fluid 180</p> <p>7.2 Vaginal and Intrauterine Drug Delivery 182</p> <p>7.3 Standard Dissolution Test Methods for Vaginal and Intrauterine Delivery Systems 183</p> <p>7.3.1 Official Dissolution Methods 183</p> <p>7.4 Predictive Dissolution Test Methods for Vaginal and Intrauterine Delivery Systems 186</p> <p>7.4.1 Test Equipment 187</p> <p>7.4.2 Test Media 188</p> <p>7.4.2.1 Simulated Vaginal Fluids 188</p> <p>7.4.2.2 Simulated Intrauterine Fluids 192</p> <p>7.4.2.3 Other Genital Fluids 193</p> <p>7.4.2.4 Summary 194</p> <p>7.4.3 Case Studies 194</p> <p>7.4.3.1 Dissolution Test Methods for Vaginal Tablets 195</p> <p>7.4.3.2 Dissolution Test Methods for Vaginal Suppositories 198</p> <p>7.4.3.3 Dissolution Test Methods for Vaginal Gels 199</p> <p>7.4.3.4 Dissolution Test Methods for Vaginal Films 201</p> <p>7.4.3.5 Dissolution Test Methods for Vaginal Rings 202</p> <p>7.4.3.6 Dissolution Test Methods for Intrauterine Delivery Systems 205</p> <p>7.4.4 Conclusion and Future Directions 205</p> <p>References 206</p> <p><b>8 Rectal Dosage Forms 211<br /></b><i>Sandra Klein</i></p> <p>8.1 Rectal Anatomy and Physiology Relevant to Drug Delivery 211</p> <p>8.1.1 Rectal Anatomy and Physiology 211</p> <p>8.1.2 Rectal Secretions and Rectal Fluid Properties 213</p> <p>8.2 Rectal Drug Delivery 213</p> <p>8.3 Standard Dissolution Test Methods for Rectal Dosage Forms 215</p> <p>8.3.1 Official Dissolution Methods 215</p> <p>8.4 Predictive Dissolution Test Methods for Rectal Dosage Forms 218</p> <p>8.4.1 Test Equipment 218</p> <p>8.4.2 Test Media 219</p> <p>8.4.3 Case Studies 219</p> <p>8.4.3.1 Dissolution Test Methods for Suppositories 220</p> <p>8.4.3.2 Dissolution Test Methods for Rectal Capsules 229</p> <p>8.4.3.3 Dissolution Test Methods for Rectal Gels 229</p> <p>8.4.4 Conclusion and Future Directions 230</p> <p>References 231</p> <p><b>9 Ophthalmic Dosage Forms 235<br /></b><i>Christian Simroth‐Loch, Werner Weitschies, and Clive G. Wilson</i></p> <p>9.1 Introduction 235</p> <p>9.2 The Tear Film 236</p> <p>9.2.1 Tear Characteristics 236</p> <p>9.2.2 Tear Secretion: Enzymes and Proteins 237</p> <p>9.2.3 Tear Secretion: Lipids 237</p> <p>9.2.4 Osmolality 237</p> <p>9.2.5 Tear Secretion: pH 237</p> <p>9.2.6 Tear Secretion: Surface Tension 237</p> <p>9.2.7 Tear Viscosity 238</p> <p>9.3 Delivery Volume 238</p> <p>9.4 Ophthalmic Formulations 239</p> <p>9.4.1 Drug Salts 239</p> <p>9.4.2 Tonicity Adjusters 240</p> <p>9.4.3 Buffers 240</p> <p>9.4.4 Preservatives 240</p> <p>9.4.5 Polymers 240</p> <p>9.4.6 Ethylenediaminepentaacetic acid (EDTA) 241</p> <p>9.5 <i>In Vitro </i>Testing for Ophthalmic Formulations 241</p> <p>9.5.1 Media to Simulate Ocular Fluids 241</p> <p>9.5.2 Topical Ocular Delivery Systems and <i>In Vitro </i>Testing 242</p> <p>9.5.3 Intraocular Delivery Systems and <i>In Vitro </i>Testing 243</p> <p>9.5.3.1 Periocular Injections and Implants 243</p> <p>9.5.3.2 Intravitreal Injections and Implants 245</p> <p>9.6 Concluding Remarks 246</p> <p>References 247</p> <p><b>10 Regulatory Considerations 253<br /></b><i>Vivian A. Gray</i></p> <p>10.1 Introduction 253</p> <p>Part One: Review of Documents Related to <i>In Vitro </i>Release Testing 253</p> <p>10.2 Compendial Chapters with Legal Implications 253</p> <p>10.2.1 USP General Chapter <711> Dissolution 254</p> <p>10.2.2 Ph.Eur. Chapters on Dissolution 254</p> <p>10.2.2.1 Ph.Eur. 2.9.3 Dissolution Test for Solid Dosage Forms 254</p> <p>10.2.2.2 Ph.Eur. 2.9.42 Dissolution Test for Lipophilic Solid Dosage Forms 255</p> <p>10.2.3 JP 6.10 Dissolution Test 255</p> <p>10.2.4 Harmonization of Dissolution Chapters 256</p> <p>10.2.5 The International Pharmacopoeia 256</p> <p>10.2.6 Testing of Transdermal Dosage Forms 257</p> <p>10.2.6.1 USP General Chapter Drug Release <724> 257</p> <p>10.2.6.2 Dissolution Testing for Transdermal Patches EP 2.9.4 257</p> <p>10.2.7 Dissolution Test for Medicated Chewing Gums, EP 2.9.25 258</p> <p>10.2.8 Disintegration Testing 258</p> <p>10.2.8.1 USP General Chapter Disintegration <701> 258</p> <p>10.2.8.2 Ph.Eur. Disintegration Testing 259</p> <p>10.2.8.3 JP Disintegration Test 6.09 260</p> <p>10.3 Compendial Chapters, Non‐binding 261</p> <p>10.3.1 The Dissolution Procedure: Development and Validation USP General Chapter <1092> 261</p> <p>10.3.2 Ph.Eur. Recommendations on Dissolution Testing 5.17.1 261</p> <p>10.3.3 USP General Chapter <i>In Vitro </i>and <i>In Vivo </i>Evaluation of Dosage Forms <1088> 262</p> <p>10.3.4 USP General Chapter Semisolid Drug Products‐Performance Tests <1724> 262</p> <p>10.3.5 Capsules‐Dissolution Testing and Related Quality Attributes USP General Chapter <1094> 262</p> <p>10.3.6 Assessment of Drug Performance‐Bioavailability, Bioequivalence, and Dissolution USP General Chapter <1090> 263</p> <p>10.4 Guidances Related to <i>In Vitro </i>Release Testing 263</p> <p>10.4.1 FDA Guidances 264</p> <p>10.4.1.1 Dissolution Testing of Immediate‐Release Solid Oral Dosage Forms 264</p> <p>10.4.1.2 Extended‐Release Oral Dosage Forms: Development, Evaluation, and Application of <i>In Vitro</i>–<i>In Vivo </i>Correlations 265</p> <p>10.4.1.3 Waiver of <i>In Vivo </i>Bioavailability and Bioequivalence Studies for Immediate‐Release Solid Oral Dosage Forms Based on a BCS 265</p> <p>10.4.1.4 Bioavailability and Bioequivalence Studies for Orally Administered Drug Products – General Considerations 266</p> <p>10.4.1.5 SUPAC Guidances for Immediate‐Release [36], Extended‐Release [37], and Non‐Sterile Semisolids [19] 266</p> <p>10.4.1.6 Orally Disintegrating Tablets 268</p> <p>10.4.1.7 The Use of MC of Dissolution Apparatus 1 and 2 – Current Good Manufacturing Practice (CGMP) 268</p> <p>10.4.1.8 Dissolution Testing and Specification Criteria for Immediate‐Release Solid Oral Dosage Forms Containing BCS Class 1 and 3 Drugs 268</p> <p>10.4.1.9 Quality Attribute Considerations for Chewable Tablets 269</p> <p>10.4.2 EMA Guidances 269</p> <p>10.4.2.1 Guideline on Quality of Oral Modified‐Release Products 269</p> <p>10.4.2.2 Guideline on Quality of Transdermal Patches 270</p> <p>10.4.2.3 Guideline on the Investigation of Bioequivalence 270</p> <p>10.4.3 Japanese Guidelines 271</p> <p>10.4.3.1 Guideline for the Design and Evaluation of Oral Prolonged‐Release Dosage Forms 271</p> <p>10.4.3.2 Guideline for Bioequivalence Studies of Generic Products 271</p> <p>10.4.3.3 Guideline for Bioequivalence Studies for Different Strengths of Oral Solid Dosage Forms 272</p> <p>10.4.3.4 Guideline for Bioequivalence Studies for Formulation Changes of Oral Solid Dosage Forms 272</p> <p>10.4.3.5 Guideline for Bioequivalence Studies for Different Oral Solid Dosage Forms 272</p> <p>10.4.4 ICH Guidelines 272</p> <p>10.4.4.1 Q6A Specifications: Test Procedures and Acceptance Criteria for New Drug Substances and New Drug Products: Chemical Substances 273</p> <p>10.4.4.2 Evaluation and Recommendation of Pharmacopeial Texts for Use in the ICH Regions on Dissolution Test General Chapter Q4B Annex 7(R2) 273</p> <p>10.4.4.3 Evaluation and Recommendation of Pharmacopeial Texts for Use in the ICH Regions on Disintegration Test General Chapter Q4B Annex 5(R1) 273</p> <p>10.4.5 Other Guidelines 273</p> <p>10.4.5.1 FIP Guidelines for Dissolution Testing of Solid Oral Products 273</p> <p>10.4.5.2 FIP/AAPS Guidelines for Dissolution/<i>In Vitro </i>Release Testing of Novel/Special Dosage Forms 274</p> <p>10.4.5.3 Specifications for Pharmaceutical Preparations (Forty‐Sixth Report), WHO Technical Report Series 970 274</p> <p>Part Two: Role of Method Development in Setting Clinically Relevant Specifications 275</p> <p>10.5 Considerations in Early Method Development 275</p> <p>10.6 Choice of Media 276</p> <p>10.7 Discriminatory Power of the Method 277</p> <p>10.8 <i>In Vitro </i>Release Testing for Special Dosage Forms 278</p> <p>10.9 Resources 278</p> <p>Useful Web Sites 278</p> <p>Bibliography 279</p> <p>Acknowledgments 279</p> <p>References 279</p> <p>Index 285</p>
<p>Editors <p><b>Nikoletta Fotaki, PhD,</b> is Reader in Pharmaceutics, Department of Pharmacy and Pharmacology, University of Bath, UK. Her research interests are focused on the prediction of drug absorption through the oral and non-oral route; prediction of drug absorption in special populations (paediatrics; disease states), biorelevant dissolution methods, formulation development, and physiologically based pharmacokinetic modeling. <p><b>Sandra Klein, PhD,</b> is Professor of Pharmaceutical Technology, Department of Pharmacy, University Greifswald, Germany. Her research is focused on developing bio-predictive in vitro models and oral dosage forms for special patient groups, particularly the paediatric and geriatric population; the design of predictive and accelerated test methods for lozenges, vaginal delivery systems and depot parenterals, and in establishing formulation strategies for enhancing the bioavailability of poorly soluble drugs.
<p><b>In Vitro Drug Release Testing of Special Dosage Forms</b> <p>Guides readers on the proper use of in vitro drug release methodologies in order to evaluate the performance of special dosage forms <p>In the last decade, the application of drug release testing has widened to a variety of novel/special dosage forms. In order to predict the in vivo behavior of such dosage forms, the design and development of the in vitro test methods need to take into account various aspects, including the dosage form design and the conditions at the site of application and the site of drug release. This unique book is the first to cover the field of in vitro release testing of special dosage forms in one volume. Featuring contributions from an international team of experts, it presents the state of the art of the use of in vitro drug release methodologies for assessing special dosage forms' performances and describes the different techniques required for each one. <p><i>In Vitro Drug Release Testing of Special Dosage Forms</i> covers the in vitro release testing of: lipid based oral formulations; chewable oral drug products; injectables; drug eluting stents; inhalation products; transdermal formulations; topical formulations; vaginal and rectal delivery systems and ophthalmics. The book concludes with a look at regulatory aspects. <ul> <li>Covers both oral and non-oral dosage forms</li> <li>Describes current regulatory conditions for in vitro drug release testing</li> <li>Features contributions from well respected global experts in dissolution testing</li> </ul> <p><i>In Vitro Drug Release Testing of Special Dosage</i> Forms will find a place on the bookshelves of anyone working with special dosage forms, dissolution testing, drug formulation and delivery, pharmaceutics, and regulatory affairs.

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