While a plant-based meal would qualify as vegan (adjective), a person who follows a plant-based (vegan) diet is not necessarily a vegan (noun). For example, someone could follow a plant-based diet but still wear leather and have no moral issue with hunting or killing animals for food.
Ball-and-stick model of cimetidine, the prototypical H 2 -receptor antagonist. The H2 receptor antagonists are a class of drugs used to block the action of histamine on parietal cells (specifically the histamine H2 receptors) in the stomach, decreasing the production of acid by these cells.he H 2 antagonists are competitive antagonists of histamine at the parietal cell H 2 receptor. They suppress the normal secretion of acid by parietal cells and the meal-stimulated secretion of acid.
Ranitidine is an H2 receptor antagonist. H2 receptor antagonists are use to reduce the production of stomach acid. Ranitidine aids in the healing of stomach ulcers and stomach ulcer formation. Ranitidine is also used to treat gastritis, esophagitis, and GERD. Ranitidine may also be used for purposes other than those listed in this guide.