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An antiemetic is a drug that is effective against vomiting and nausea.Antiemetics are typically used to treat motion sickness and the side effects of opioid analgesics, general anaesthetics, and chemotherapy directed against cancer.
Flunarizine is a selective calcium antagonist with moderate other actions including antihistamine, serotonin receptor blocking and dopamine D 2 blocking activity. Compared to other calcium channel blockers such as dihydropyridine derivatives, verapamil and diltiazem, flunarizine has low affinity to voltage-dependent calcium channels.
First-pass metabolism may occur in the liver (for propranolol, lidocaine, clomethiazole, and nitroglycerin) or in the gut (for benzylpenicillin and insulin). [4] The four primary systems that affect the first pass effect of a drug are the enzymes of the gastrointestinal lumen, [5] gastrointestinal wall enzymes, [6] [7] [8] bacterial enzymes [5] and hepatic enzymes.
Tachykinins are a family of neuropeptides that share the same hydrophobic C-terminal region with the amino acid sequence Phe-X-Gly-Leu-Met-NH 2, where X represents a hydrophobic residue that is either an aromatic or a beta-branched aliphatic.
Phenothiazine, abbreviated PTZ, is an organic compound that has the formula S(C 6 H 4) 2 NH and is related to the thiazine-class of heterocyclic compounds.Derivatives of phenothiazine are highly bioactive and have widespread use and rich history.
There are two reasons centipedes were chosen to be part of the anti-cough pill brand's logo. The first is that the creator, Shen Shuishi, was inspired by the numerous centipedes he saw in Phra Pradaeng district, which he had moved to after the start of the Second World War. [3] He observed centipedes scurrying up his house's walls to flee a ...
In an in vitro study in rat thalamic slices, amobarbital worked by activating GABA A receptors, which decreased input resistance, depressed burst and tonic firing, especially in ventrobasal and intralaminar neurons, while at the same time increasing burst duration and mean conductance at individual chloride channels; this increased both the amplitude and decay time of inhibitory postsynaptic ...
Cimetidine was the prototypical histamine H 2 receptor antagonist from which later drugs were developed. Cimetidine was the culmination of a project at Smith, Kline & French (SK&F; now GlaxoSmithKline) by James W. Black, C. Robin Ganellin, and others to develop a histamine receptor antagonist that would suppress stomach acid secretion.