Formulation and evaluation of raloxifene hydrochloride tabletswith improved dissolution profile

The objective of this research activity was to formulate and evaluate Raloxifene Hydrochloride (RLX HCl) tablets (BCS class II drug) with enhanced aqueous solubility thereby achieving a formulation with improved dissolution characteristics. Tablets were prepared by incorporating excipients such as disintegrant, solubilizer, wetting agent and evaluated for various pre compression and post compression parameters. Also assay and in-vitro dissolution studies were performed. Formula RLX HCl 27 containing disintegrant Ac-di-sol (15 mg-intragranular and 5 mg- extragranular) and solubilizerDimethyl Sulfoxide (DMSO- 10 mg) was selected as the best optimised formula.Optimised formula was scaled up and stability studies were carried out according to the stability protocol. The results indicated that the formulation was stable and had improved dissolution profile as compared to marketed tablet

MICRONEEDLE TECHNOLOGY FOR TRANSDERMAL DRUG DELIVERY: APPLICATIONS AND COMBINATION WITH OTHER ENHANCING TECHNIQUES

Transdermal delivery system has been extensively employed over the years owing to its advantages over the conventional delivery systems. However, the stratum corneum hinders the penetration of substances through the skin. Microneedle technology is the latest advancement and has gained tremendous attention in transdermal delivery system, overcoming the obstacles of transdermal delivery system and providing advantages over the conventional delivery systems. Numerous studies have been carried out for exploring microneedles. This review article covers the types of microneedles, mechanism of action of microneedles, methodology of drug delivery via microneedles while mainly focusing on the applications of microneedles and their combination with other enhancing techniques in transdermal delivery of drug and other molecules. Keywords: Transdermal delivery, Microneedles, Stratum corneum, Iontophoresis, Electroporation, Sonophoresis, Vibratory actuation, Immunologicals, Biopharmaceuticals, Phlebotomy, Diagnosis