1Department of Pharmaceutics, J.K.K.M.M.R.F. College of Pharmacy, Komarapalayam, Pin: 638 183, Namakkal, Tamilnadu, India
2Department of Pharmaceutics, University College of Pharmaceutical Sciences, Kakatiya University, Warangal – 506002, Andhra Pradesh, India
Mucoadhesive buccal tablets of Diltiazem hydrochloride were prepared using carbopol-934, Sodium carboxy methyl cellulose (SCMC), Hydroxy propyl methyl cellulose (HPMC), sodium alginate and guar-gum as mucoadhesive polymers. Eight formulations were developed with varying concentrations of polymers. The carbopol-934 is used as a primary polymer because of its excellent mucoadhesive property and secondary polymers like HPMC, SCMC, sodium alginate and guar-gum were used. The effect of secondary polymer loading on drug release was studied. The formulations were tested for in-vitro drug release and in-vitro swelling studies. Formulation FA2 showed maximum release of 76.98% in 8hours. Formulation FC2 showed maximum swelling index of 3.7 after 8hours. Formulation FA2 follows zero order drug release. FTIR studies show no evidence on interaction between drug and polymers. The results indicate that suitable mucoadhesive buccal tablets with desired properties could be prepared.
Buccal tablets, Diltiazem Hydrochloride, Formulation, Swelling, Evaluation
