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.
Blockage of dopamine (D2) receptors by drugs (eg, antipsychotic drugs, methylphenidate) or abrupt withdrawal of a dopaminergic agonist, resulting in muscle rigidity, fever, change in mental status, and autonomic instability. Treatment with a D2 agonist (eg, bromocriptine) reverses the disordered neurotransmission.