Antihistamine-Expectorant Cough Medicine
Last reviewed May 2026
Who is this for?
This is a combination cough medicine containing diphenhydramine (an antihistamine that stops coughing and dries up a runny nose), ammonium chloride (an expectorant that loosens thick phlegm so you can cough it out), and menthol (which gives a cool, soothing feeling in the throat and opens up the airway).
Available Over The Counter
Get this from any pharmacy or chemist — no prescription needed.
Is Diphenhydramine safe to take with another drug?
Check with multiple drugs →Explore this drug