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  • FORMULATION AND IN VITRO EVALUATION OF METOCLOPRAMIDE HYDROCHLORIDE MICROSPHERES PREPARED BY SOLVENT EVAPORATION METHOD

    About Authors:
    Mubarak Patel*, Suresh. V. Kulkarni,
    Department of Pharmaceutics,
    Sree Siddaganga College of Pharmacy,
    B. H. Road, Tumkur-572102, Karnataka, India.

    *patel.mubarak2@gmail.com

    ABSTRACT:
    The purpose of the research work was to prepare and evaluate the microspheres of metoclopramide hydrochloride as a model drug by solvent evaporation method with carbopol and HPMC polymers in various proportions. A total of six formulations were prepared i.e. F1, F2, F3, F4, F5 and F6. The microspheres were evaluated for micromeritic properties, particle size, % yield, Drug content and Drug release. The size or average diameter of prepared microspheres were recognized and characterized by scanning electron microscopic methods. Microspheres were found discrete, spherical and free flowing. They ranged in particle size from 45.6- 52.2 μm. Metoclopramide hydrochloride release from these microspheres was slowed, extended and depended on the type of polymer used. The formulation F2 and F5 showed consistent drug release for up to 12 h time period. Among all the formulations, F2 contains carbopol 934 and F5 containing HPMC showed the reproducible results with best release profile and good surface morphology. Release data were analyzed based on Highuchi kinetics and Korsmeyer/Peppa’s equation and all the selected formulations showed good fit to Peppa’s equation. The work has demonstrated that among all the formulations of microspheres, particularly those of formulation F2 are promising candidates for the sustained release of metoclopramide hydrochloride in the gastrointestinal tract.

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  • FORMULATION AND EVALUATION OF SUBLINGUAL TABLETS OF NIFEDIPINE

    About Authors:
    *DINESH BABU GOTTIPATI1, SREE DEVI ANANDHAM1, NANNAPANENI VENKATA BALAKRISHNA RAO2.
    1 Department of pharmaceutics, M.E.S.college of pharmacy, Aradeshally gate, Bangalore -562110,India.
    2 Research and Development Department, Natco Pharma Limited, Kothur.
    *babu.dinesh89@live.in

    ABSTRACT:
    The aim of this study was to evaluate the effect of increasing nifedipine on the characteristics of fast-disintegrating sublingual tablets for the potential emergency treatment of anginal pain and hypertension. Nifedipine undergoes first pass metabolism in liver and gut wall which has oral bioavailability of 43-77%. Sublingual dosage form bypasses the metabolism of the nifedipine in liver and offers a fast relieve from anginal pain and hypertension. An attempt has been made to prepare fast dissolving tablets of nifedipine were prepared by wet granulation technique using Crospovidone and croscarmellose sodium (CCS) as super disintegrants as super disintegrants, Flavor and sweetener impart the taste to the formulation. The porous granules were compressed in to tablets by 8mm punch rotary tablet machine. All the formulations were evaluated for weight variation, hardness, friability, content uniformity, wetting time, and disintegration time and dissolution rate. Among the formulations, F9 one containing to be the best acceptable in terms of palatability, fast dissolving tablet having adequate strength. The disintegration time was found to be 56 ± 0.4 seconds, hardness of 4.6 ± g /cm2, wetting time of 31sec   and drug release of 99.85 % in 9 mins. All the formulations showed low weight variation. The present study demonstrated potentials for rapid absorption, improved bioavailability, effective therapy and patient compliance.

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