Benadryl? Benedryl is a common misspelling of Benadryl.
Benadryl® (diphenhydramine hydrochloride) is an antihistamine used for a variety of different purposes, including the treatment of allergies, cold symptoms, and insomnia. It comes in numerous forms and strengths and is available both over the counter and by prescription. Depending on the particular version of the drug, it may be taken by mouth, applied to the skin, or injected into a vein or muscle. Some of the most common side effects that have been reported include dizziness, coordination problems, and drowsiness.
(Click Benadryl to learn more about the uses, effects, and other potential side effects of Benadryl. You can also click on the various links in the box to the right to access specific topics on Benadryl.)