benadryl syp small 1*50ml
Diphenhydramine hydrochloride (14.08 mg), an antihistamine that helps reduce sneezing, runny nose and itching by blocking histamine H₁ receptors; Ammonium chloride (138 mg), an expectorant that increases airway fluid volume and loosens mucus; Sodium citrate (57.03 mg), a mucolytic that thins and eases expulsion of phlegm; and Ethanol (approximately 0.2625 ml, or 5% v/v), which acts as a preservative to maintain stability of the formulation