Cofrest Syrup Specification
Requires Prescription (YES/NO)
Yes
Generics
Theophylline , Diphenhydramine , Ammonium Chloride , Menthol
Used For
Fever & Cough
How it works
Theophylline?relaxes the smooth muscles located in the bronchial airways and pulmonary blood vessels. Ammonium chloride increases acidity by increasing the amount of hydrogen ion concentrations. Ammonium chloride can be used as an expectorant due to its irritative action on the bronchial mucosa. It acts as a counter- irritant by imparting a cooling effect and by initially stimulating nociceptors and then desensitizing them.Diphenhydramine acts as an inverse agonist at the H1 receptor, thereby reversing the effects of histamine on capillaries, reducing allergic reaction symptoms.