Diphen Allergy Relief 25 mg Strength Caplet 24 per Box - BoxAbout Diphen Diphenhydramine Allergy Relief (1 Unit) For motion sickness, a dose is usually taken 30 minutes before motion, then with meals and at bedtime for the duration of exposure Relieves sneezing, itchy nose and throat, and watery eyes caused by hay fever and other symptoms of allergic reactions Each caplet contains 25 milligrams diphenhydramine HCl Compare to active ingredient in Benadryl a registered trademark of Kenvue Each caplet is