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HPLC method for stability evaluation of pharmaceutical preparations containing sodium picosulfate.

Nowadays, HPLC is the most widely spread and powerful analytical tool in drug control. It is the first choice method for the solution of all problems connected with the evaluation of related substances and the assay of the active substance as well as the preservative. This separation method was thus used to develop an analytical method which enables evaluation of oral liquid drug preparations containing sodium picosulfate as the favoured laxative drug.