Per 5 mL Diphen 5 expectorant diphenhydramine HCl 5 mg, ammon Cl 62.5 mg, Na citrate 50 mg. Per 5 mL Diphen 10 expectorant diphenhydramine HCl 10 mg, ammon Cl 125 mg, Na citrate 50 mg
R05CA10 - combinations ; Belongs to the class of expectorants. Used in the treatment of wet cough.