The antihistamine Benadryl? was first made publically available y prescription in 1946; today the popular allergy and anti-itch medicine for adults and children is available over-the-counter for oral or topical use. The brand is manufactured by McNeil Consumer Healthcare, a subsidiary of Johnson & Johnson and encompasses a variety of allergy relief and itchy skin relief solutions. The product line includes children?s allergy relief liquid, a great tasting cherry formula that helps to symptoms such as runny nose, sneezing, itchy and watery eyes; extra strength itch relief sticks; allergy relief antihistamine tablets; children?s anti-itch soothing, cooling gel; allergy relief ultra-tab tablets; dye-free allergy relief softgels; allergy relief pills and more. The active ingredient in most products is the antihistamine Diphenhydramine HCl. Get relief when you know the ?DRYL?? and give allergies the boot.