VARIOUS TECHNIQUES ENHANCING BIOAVAILABILTY OF POORLY WATER SOLUBLE DRUGS
Abstract
A drug administered in solution form immediately available for absorption and efficiently absorbed than the same amount of drug administered in a tablet or capsule form. Solubility is a most important parameter for the oral bioavailability of poorly soluble drugs. Dissolution of drug is the rate determining step for oral absorption of the poorly water soluble drugs, which can subsequently affect the in vivo absorption of drug. Currently only 8% of new drug candidates have both high solubility and permeability. Because of solubility problem of many drugs the bioavailability of them gets affected and hence solubility enhancement becomes necessary. It is now possible that to increase the solubility of poorly soluble drugs with the help of various techniques such as Physical method,Chemical method. Co-crystallisation, co-solvency solubilizing agents, molecular encapsulation with cyclodextrins,nanotechnology approaches and hydrotropy.
Key-Words: Solubility, Dissolution and BioavailabilityDOI
https://doi.org/10.22270/jddt.v3i2.464
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