Nidhi Nainwal*, Ranjit Singh, Sunil Jawla and Vikas Anand Saharan Pages 1434 - 1446 ( 13 )
The Biopharmaceutical classification system (BCS) classifies the drugs based on their intrinsic solubility and intestinal permeability. The drugs with good solubility and intestinal permeability have good bioavailability. The drugs with poor solubility and poor permeability have solubility dependent and permeability dependent bioavailability, respectively. In the current pharmaceutical field, most of the drugs have poor solubility. To solve the problem of poor solubility, various solubility enhancement approaches have been successfully used. The effects of these solubility enhancing approaches on the intestinal permeability of the drugs are a matter of concern, and must not be overlooked. The current review article focuses on the effect of various solubility enhancing approaches viz. cyclodextrin, surfactant, cosolvent, hydrotropes, and amorphous solid dispersion, on the intestinal permeability of drugs. This article will help in the designing of the optimized formulations having balanced solubility enhancement without affecting the permeability of drugs.
Solubility, intestinal permeability, solubility-permeability interplay, biopharmaceutical, cyclodextrin, hydrotropes.
Department of Pharmaceutics, School of Pharmaceutical Sciences, Sardar Bhagwan Singh University, Balawala, Dehradun, School of Pharmacy, Adarsh Vijendra Institute of Pharmaceutical Sciences, Shobhit University Gangoh, Saharanpur, School of Pharmacy, Adarsh Vijendra Institute of Pharmaceutical Sciences, Shobhit University Gangoh, Saharanpur, Department of Pharmaceutics, School of Pharmaceutical Sciences, Sardar Bhagwan Singh University, Balawala, Dehradun