Fast-acting BENADRYL® LIQUI-GELS are dye free and provide fast, effective symptom relief of your allergies and allergic reactions. Benadryl Allergy Liqui-Gels provide fast, effective relief from allergies and allergic reactions. Each liquid gel capsule contains 25 milligrams of diphenhydramine hydrochloride, an antihistamine, to treat sneezing, itchy and runny nose, itchy and watery eyes, itchy throat, skin itch, and hives. The gel caps are dye-free and easy to swallow.