Thu, 14 Dec 2017

DEVELOPMENT AND EVALUATION OF NIMODIPINE FAST DISSOLVING TABLETS PREPARED WITH A COMPLEX BY DIRECT COMPRESSION METHOD

N. G. Raghavendra Rao1*, M D. Subhan1

 

1. Department of Pharmaceutics, Luqman College of Pharmacy, Gulbarga Karnataka


ABSTRACT

 

Nimodipine is an antihypertensive, calcium channel blocker, vasodilator agent and used in the treatment of various cardiovascular disorders such as angina pectoris, cardiac arrhythmia and hypertension. Oral bioavailability of Nimodipine is around 13% and having half life 9 hrs. In present research work an attempt has been made to prepare fast dissolving tablets of Nimodipine by direct compression technique with β-cyclodextrin complexes using various superdisintegrants. The powder blends were subjected for pre-compressional parameters. The prepared tablets were evaluated for post-compressional parameters. The prepared tablets were characterized by DSC and FTIR Studies. No chemical interaction between drug and excipients was confirmed by DSC and IR studies. The values of pre-compression parameters evaluated were within prescribed limits and indicated good free flowing property. All the post-compressional parameter are evaluated were prescribed limits and results were within IP acceptable limits. The tablets were evaluated for the in-vitro disintegration time and it was observed that the time for all the formulations varied from 19.24 to 48.29 sec. The promising formulations CCP4, CCC4 and CSS1 shows the 90 % of drug released within 5-8 min. Among all the formulation CCP4 (15 % crospovidone) were found to be best and showed a disintegration time of 19.24 sec, 50 % of drug released in 0.96 min, and 90 %  of drug released in 4.78 min. The stability study was conducted as per the ICH guidelines and the formulations were found to be stable, with insignificant changes in hardness, drug content and disintegration time. These results revealed that fast dissolving tablets of the poorly soluble drug, Nimodipine, showing enhanced dissolution and, hence, better patient compliance.

Key words: Fast dissolving tablets, Nimodipine, sodium starch glycolate, croscarmellose sodium, crospovidone,  β-cyclodextrin.


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