Benadryl contains the active ingredient diphenhydramine HCl. Ethanolamine ... How long does it take for Benadryl to work in ...

Your dog doesn’t need to suffer, though. With a vet’s guidance, you can use diphenhydramine (Benadryl) to ease the worst of their allergy symptoms. Benadryl is an antihistamine that helps ...

Rest Better – Diphenhydramine HCl can cause drowsiness which can help your body relax for a better night’s rest. Avoid driving after use. Use as Directed – These HCl antihistamine tablets ...