USFDA has released GUIDANCE for Quality Attributes of *CHEWABLE TABLETS

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*CQAs of CHEWABLE TABLETS (CT)*
USFDA has released GUIDANCE for Quality Attributes of *CHEWABLE TABLETS*
According to this latest guideline, FDA has recommended sponsor/applicant should also incorporate following CQAs:
*1. PATIENT ACCEPTABILITY*
Acceptable Taste, Mouthfeel & Aftertaste With-
*2. HARDNESS / BREAKING FORCE / CRUSHING STRENGTH*
Hardness of CTshould be kept  low  (i.e.  <12 kp).
A higher hardness  value  (e.g.,  >12 kp)  may  be  considered if  justified.  An example  of  such justification could be  demonstrating  significant disintegration and/or  reduction in hardness  of  such  tablets  following  brief  i.e.  30 seconds  in-vitro exposure to simulated saliva (1 mL) before chewing to ensure patient compliance without  GI  obstruction (choking in throat / blocking bowel movement) in the case if patient swallow tablet without chewing due to high hardness
*3. CHEWING DIFFICULTY INDEX*
CDI is a value derived from the relationship between two methods used for measuring tablet strength: diametral compression (diametrical tensile strength) and flexural bending (flexure tensile strength test), to ensure patient compliance without damage to teeth or dentures
CDI should be also evaluated before & after in-vitro exposure to 1 mL of simulated saliva for 30 seconds
*4. DISINTEGRATION & DISSOLUTION*
CT should  typically  meet the  same  disintegration  and dissolution specifications  as _IR  tablets_. In vitro DT & Dissolution testing  should be  conducted on  _intact_ chewable  tablets since  _it is  possible  that some  patients  might swallow  the  tablets  without chewing_.
*5. Others*
If functional coated particles are present in chewable tablet then applicant has to ensure its functionality even after chewing tablets.
////////////USFDA, GUIDANCE, Quality Attributes, CHEWABLE TABLETS

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Author: DR ANTHONY MELVIN CRASTO Ph.D

DR ANTHONY MELVIN CRASTO, Born in Mumbai in 1964 and graduated from Mumbai University, Completed his Ph.D from ICT, 1991,Matunga, Mumbai, India, in Organic Chemistry, The thesis topic was Synthesis of Novel Pyrethroid Analogues, Currently he is working with GLENMARK PHARMACEUTICALS LTD, Research Centre as Principal Scientist, Process Research (bulk actives) at Mahape, Navi Mumbai, India. Total Industry exp 30 plus yrs, Prior to joining Glenmark, he has worked with major multinationals like Hoechst Marion Roussel, now Sanofi, Searle India Ltd, now RPG lifesciences, etc. He has worked with notable scientists like Dr K Nagarajan, Dr Ralph Stapel, Prof S Seshadri, Dr T.V. Radhakrishnan and Dr B. K. Kulkarni, etc, He did custom synthesis for major multinationals in his career like BASF, Novartis, Sanofi, etc., He has worked in Discovery, Natural products, Bulk drugs, Generics, Intermediates, Fine chemicals, Neutraceuticals, GMP, Scaleups, etc, he is now helping millions, has 9 million plus hits on Google on all Organic chemistry websites. His friends call him Open superstar worlddrugtracker. His New Drug Approvals, Green Chemistry International, All about drugs, Eurekamoments, Organic spectroscopy international, etc in organic chemistry are some most read blogs He has hands on experience in initiation and developing novel routes for drug molecules and implementation them on commercial scale over a 30 year tenure till date Dec 2017, Around 35 plus products in his career. He has good knowledge of IPM, GMP, Regulatory aspects, he has several International patents published worldwide . He has good proficiency in Technology transfer, Spectroscopy, Stereochemistry, Synthesis, Polymorphism etc., He suffered a paralytic stroke/ Acute Transverse mylitis in Dec 2007 and is 90 %Paralysed, He is bound to a wheelchair, this seems to have injected feul in him to help chemists all around the world, he is more active than before and is pushing boundaries, He has 9 million plus hits on Google, 2.5 lakh plus connections on all networking sites, 50 Lakh plus views on dozen plus blogs, He makes himself available to all, contact him on +91 9323115463, email amcrasto@gmail.com, Twitter, @amcrasto , He lives and will die for his family, 90% paralysis cannot kill his soul., Notably he has 19 lakh plus views on New Drug Approvals Blog in 216 countries......http://newdrugapprovals.wordpress.com/ , He appreciates the help he gets from one and all, Friends, Family, Glenmark, Readers, Wellwishers, Doctors, Drug authorities, His Contacts, Physiotherapist, etc

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