For relief of nighttime cough and nasal congestion.
Poison Control Center can be reached at 1-800-222-1222
Since this is the only OTC medication that we recommend, we thought we should have the dosing here. Remember this is plain diphenhydramine (click here for sample pictures) not Benadryl Sinus or Benadryl whatever. As long diphenhydramine (it's sometimes written as diphenhydramine hydrochloride) is the only active ingredient, any version of it, including the store generic brands, is fine.