Can you drink mucinex all in one and allegra allergy 24 hour, together?

Mucinex all-in-one contains diphenhydramine, an antihistamine drug but different from allegra so you can take mucinex all-in-one at night and take allegra in the morning if you are too not drowsy.

Please describe your symptoms and the condition being treated. Avoid overuse of antihistamines, unless the treatment is for an allergic reaction. Mucinex may not be needed and increases the likelihood of side effects. Nasal saline is often effective in reducing symptoms of congestion. Avoid smoke,dust,mold and other allergens. Watch for fever and screen for COVID 19.