What is Atarax? Atarax, known generically as hydroxyzine hydrochloride, is an antihistamine used to treat anxiety and tension in situations such as psychoneurosis. It is also used as a sedative for premedication before surgery and to alleviate symptoms of allergic conditions like chronic urticaria (hives) and contact dermatoses. When to Take Atarax Atarax is typically prescribed for short-term management of…