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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-9827
Vol. 7, No. 2, 2008, pp. 987-994
Bioline Code: pr08018
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 7, No. 2, 2008, pp. 987-994

 en Formulation of the extract of the stem bark of Alstonia boonei check for this species in other resources as tablet dosage form
Majekodunmi, S.O.; Adegoke, O.A. & Odeku, O.A.

Abstract

Purpose: To formulate the extracts of the stem bark of Alstonia boonei check for this species in other resources , an important antimalarial herb, into tablet dosage form.
Methods: Tablets were formulated using direct compression and wet granulation methods. The mechanical properties of the tablets were assessed using crushing strength and friability and the crushing strength:friability ratio (CSFR) while drug release properties were evaluated using disintegration and dissolution times.
Results: There were statistically significant (p<0.01) differences in the CSFR values and drug release properties of A. boonei tablets prepared by both methods. The differences depended on the type and concentration of excipient and binder employed in the formulation.
Conclusions: The method of preparation of the A. boonei tablets needs to be carefully selected to ensure the production of tablets with adequate bond strength to withstand the rigours of handling and at the same time release the active compound (s) for biological action.

Keywords
Alstonia boonei, excipient, binder, tablets, mechanical properties, drug release properties

 
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