The aim of the present study was to formulate and evaluate the pharmaceutical quality of a polyherbal capsule. Polyherbal formulation was prepared using seed powders of Azadirachta indica, Caesalpinia bonduc, Syzygium cumini, and Trigonella foenum-graecum in 1:1:2:2 ratio to obtain the best formulation; in order to increase the acceptability and adoptability of herbal medicine in the treatment of diabetic condition. To attain the purpose; identification of herbs used, pre-formulation and post formulation studies on polyherbal capsules were done. The quality of individual herbs was evaluated by observing particle size, pH, moisture content, ash values, extractive values. The flow capability of blended powder was calculated by angle of repose, bulk and tap density, Hausner ratio and Carr’s index, these properties helped to estimate the right size of capsule for the desired strength (500 mg). Preliminary phythochemical analysis of powders was also carried out to determine the presence of various phytoconstituents. The quality of polyherbal formulation was evaluated through its description, weight variation, disintegration time and stability studies that indicated light, temperature and humidity had no significant effects on the physiochemical properties of the formulated capsules. The conclusion of the study is that the herbal medicine can be used more conveniently and safely in various diseased conditions, if used in proper portion and combination.
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