188797-80-0Relevant articles and documents
Stability-indicating spectrofluorimetric method for the assay of ziprasidone in capsules
Walash, Mohamed I.,Belal, Fathalla,El-Enany, Nahed,Eid, Manal,El-Shaheny, Rania N.
experimental part, p. 1659 - 1667 (2012/07/17)
A simple, rapid and highly sensitive spectrofluorimetric method was developed for determination of ziprasidone hydrochloride (ZPS) in capsules. The method is based on measuring the native fluorescence of ZPS in acetate buffer of pH 4.5 at 398 nm after excitation at 315 nm. The fluorescence-concentration plot was rectilinear over the range of 0.05-0.80 μg mL-1 with a lower detection limit (LOD) of 6.0 ng mL-1 and quantification limit (LOQ) of 20.0 ng mL-1. The method was fully validated and successfully applied to the determination of ZPS in its capsules with average percentage recovery of 99.7±1.4. The method was extended to stability study of ZPS. The drug was exposed to acidic, alkaline, oxidative and photolytic degradation according to ICH guidelines. Moreover, the method was utilized to investigate the kinetics of the alkaline, acidic and oxidative degradation of the drug. A proposal for the degradation pathways was postulated. Springer Science+Business Media, LLC 2009.
Methods and compositions for the treatment of neuroleptic and related disorders using ziprasidone metabolites
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Page/Page column 7, (2008/06/13)
The invention relates to novel methods using, and pharmaceutical compositions comprising, ziprasidone metabolites. The methods and compositions of the invention are suitable for the treatment of neuroleptic and related disorders. The invention further encompasses methods of preparing ziprasidone sulfoxide and ziprasidone sulfone.