Buy backpacks, exercise machines, athletic shoes, and more at Fogdog Sports. Interactions Definition Anti-itch drugs are medicines taken by mouth or by injection to relieve itching . The medicine described here, hydroxyzine, is a type of antihistamine used to relieve itching caused by allergic reactions. An allergic reaction occurs when the body is unusually sensitive to some substance, such as pollen, dust, mold, or certain foods or medicine. The body reacts by releasing a chemical called histamine that causes itching and other symptoms, such as sneezing and watery eyes.
Antihistamines reduce the symptoms by blocking the effects of histamine.
Hydroxyzine is also prescribed for anxiety and to help people relax before or after having general anesthesia. Description Anti-itch drugs, also called antipruritic drugs, are available only with a physician's prescription and come in tablet and injectable forms. Some commonly used brands of the anti-itch drug hydroxyzine are Atarax and Vistaril. Recommended dosage When prescribed for itching, the usual dosage for adults is 25 mg, three to four times a day. For children over six years of age, the usual dosage 50-100 mg per day, divided into several small doses.