Antihistamines are medicines that may relieve allergy symptoms and itching. Many are available without a prescription. Nondrowsy antihistamines include fexofenadine (Allegra) and loratadine (Claritin). Antihistamines like diphenhydramine (Benadryl) and chlorpheniramine (Chlor-Trimeton) can make you feel sleepy and cause other side effects. They may not be safe for young children or people who have certain health problems.
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PeaceHealth endeavors to provide comprehensive health care information, however some topics in this database describe services and procedures not offered by our providers or within our facilities because they do not comply with, nor are they condoned by, the ethics policies of our organization.