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Effect of two different superdisintegrants on combinaion dispersible tablets of isoniazid and rifampicin for oral treatment of tuberculosis | Shukla | International Journal of Drug Delivery

Effect of two different superdisintegrants on combinaion dispersible tablets of isoniazid and rifampicin for oral treatment of tuberculosis

Vikesh Shukla, F.V. Manvi

Abstract


Oral route of administration have wide acceptance up to 50-60% to total drug forms. Fast disintegrating drug delivery system has number of advantage such as faster onset of action, attractive elegance, ease of administration. In this study, an attempt has been made to study direct compression method, for formulation of fast disintegrating tablets of Isoniazid and Rifampicin, an anti-tubercular drug in view of enhancing bioavailability. These formulations have sufficient hardness and can be manufactured by commonly used equipment. Prior to formulation the pre-compression parameters were characterized for flow properties and prepared formulations were evaluated for physico-chemical parameters, X-ray powder crystallography, SEM and in-vivo bioavailability. All four formulations possessed good disintegration properties with total disintegration time of 25 to 40 seconds. The effects of different superdisintegrants and process variables on drug release profile and disintegration property were evaluated and results revealed the better drug release with different superdisintegrants such as Ac-di sol and Polyplastadone XL. All formulations are rapidly disintegrated in oral cavity as well as all formulations possess good anti-tubercular properties. SEM Showed the mechanical strength of the formulations affected the morphological changes after compression. Hence, it is evident from this study that fast dispersible tablets could be a promising delivery system for Isoniazid, Rifampicin and their combination with good mouth feel and improved drug availability with better patient compliance.

Keywords: Isoniazid; Rifampicin; Superdisintegrants; Direct compression method; Bioavailability.


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