Pervaiz A Shah, Mahmood Ahmed, Naveed Akhtar, Saeed Anjum.
Stability of Chlorpheniramine Maleate in Cough Syrups.
Mother & Child Jan ;36(1):14-8.

Experiments were performed to investigate the effects of temperature, pH, sunlight and other ingredients of cough syrups on the stability of chlorpheniramine maleate. There was no significant difference between the samples containing only chlorpheniramine maleate (sample A) and the samples of chlorpheniramine maleate compounded with other ingredients of cough syrups (sample B & C). However, the sample `C` containing ephedrine hydrochloride deteriorated more as compared to samples A` & `B`.

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