Dose range: 100 to 450 mg/day. IV route: three doses of 5 mg Metoprolol administered at intervals of 2 minutes time. Oral route: if the patient gives no sign of complication from the IV route, a total of 15 mg, then a tablet of 50 mg in 6 hour block should start immediately after the IV dose.
â¢ ANTIHISTAMINE (noun) The noun ANTIHISTAMINE has 1 sense: 1. a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site. Familiarity information: ANTIHISTAMINE used as a noun is very rare.
antipyretic. 1. effective against fever; called also antifebrile. 2. something having this effect, such as a cold pack, aspirin, or quinine; antipyretic drugs dilate the blood vessels near the surface of the skin, thereby allowing more blood to flow through the skin, where it can be cooled by the air.