R Original Article Formulation Development of Oral Mucoadhesive Coated Terbutaline Sulphate Tablets Using Some Natural Materials Extracted from Edible Fruits Available in India

Mucoadhesive polymers that bind to the gastric mucin or epithelial cell surface are useful in drug delivery for the purpose of increasing the intimacy and duration of contact of drug with the absorbing membrane. Several synthetic polymers are in use for this purpose. Since the biodegradability of the synthetic polymers are questionable, in this investigation, an oral mucoadhesive controlled delivery system has been developed for terbutaline sulphate using natural mucoadhesive materials extracted from edible fruits like Zizyphus mauritiana and Aegle marmelos that have better mucoadhesive property than synthetic polymer hydroxypropylmethyl-cellulose K4M (HPMCK4M). The in vitro adhesive and mucoadhesive strength and swelling property of mucoadhesive materials extracted from edible fruits of Z. mauritiana and A. marmelos were evaluated and compared with HPMCK4M by Share stress and Wilhelmy plate method. Different formulations of oral mucoadhesive coated terbutaline sulphate tablets were prepared using these natural materials and HPMCK4M and hardness, thickness, friability, weight variation and assay of tablet