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The preparation suppositories contain 250 mg of paracetamol on different bases using Novata BD, Novata BCF and composition of Novata BCF/BD (1:1). Suppositories were prepared by the fusion method. The prepared formulations with or without surfactants (Tween 80, Span 60) at concentrations of 2% and 4% (w/w) were tested for hardness, to tal time of de for ma tion, disintegration time,content uniformity and release of the drug. The release of the drug was carried in the apparatus with the stirrer shade in phosphate buffer (pH 7.2) at 100 rpm. The physical properties of the prepared suppositories were according with the requirement of Polish Pharmacopoeia 9th edition. Addition of 4 % Tween 80 to suppository bases significantly increased the drug release from all the investigated formulations. However, incorporation of Span 60 did not result in improvement of the drug release significantly.

Effect of nonionic surfactants on the release of paracetamol from suppositories