ramp 1. (rÄmp) n. 1. An inclined surface or roadway connecting different levels. 2. A mobile staircase by which passengers board and leave an aircraft. 3. A concave bend of a handrail where a sharp change in level or direction occurs, as at a stair landing.
About H2 blockers. H2 blockers â also known as histamine 2 receptor antagonists â are medications that decrease the amount of acid the stomach produces. These drugs are used to treat various gastrointestinal disorders.2 blockers can slow the time it takes to eliminate certain drugs from the body. Of particular concern to individuals taking H2 blockers are: 1  Bronchodilators (drugs that expand airways in the lungs) such as aminophylline, oxtriphylline or theophylline. 2  Anticoagulants (drugs that help prevent blood clots).
Four H2 blockers are currently available in the U.S.: 1  Famotidine (Pepcid AC). Famotidine (Pepcid AC, Pepcid Oral) is the most potent H2 blocker. 2  Cimetidine (Tagamet, Tagamet HB). Cimetidine (Tagamet) is the oldest H2 blocker. 3  Ranitidine (Zantac, Zantac 75, Zantac Efferdose, Zantac injection, Zantac Syrup).