To warm tortillas in the microwave, follow these steps: 1  Wrap a small stack of tortillas (2-6) in a damp paper towel. 2  Microwave for 30 seconds to 1 minute.
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 prototypical H 2 antagonist was cimetidine, developed by Sir James Black at Smith, Kline & French (now GlaxoSmithKline) in the mid-to-late 1960s and first marketed in 1976; sold under the trade name Tagamet, cimetidine would later become the first ever blockbuster drug.
H2 receptor antagonist an agent that blocks the action of histamine by competitive binding to the H2 receptor; used to inhibit acid secretion in the treatment of peptic ulcer.