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[The stability of hydrochlorothiazide and cyclopenthiazide in various dosage forms. 3. Stability of
Die Pharmazie
|August 1, 1986
Abstract:
Studies of the stability of hydrochlorothiazide (1) in N-methylacetamide prove that a temperature dependent equilibrium is found in the isothermic short-term test as well as in the longterm stability test. Whereas the kinetic reaction evaluation after Arrhenius doesn't allow a forecast, the 25 degrees C-values, extrapolated after the Van't Hoff-equation, were confirmed using the long-term test. By adding the decomposition product aminodisulfamide (2) the hydrolysis is restricted.