Quinidine. Adaquin . Apo-Quinidine . Chinidin . Quincardine . Quinidex . Quinidine Sulfate . Quinora . Apo Quinidine . Sulfate, Quinidine . An optical isomer of quinine, extracted from the bark of the CHINCHONA tree and similar plant species. This alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. It prolongs cellular ACTION POTENTIALS, and decreases automaticity. Quinidine also blocks muscarinic and alpha-adrenergic neurotransmission. . 0.55
Chenopodium quinoa. Chenopodium quinoas . Quinoas . quinoa, Chenopodium . Quinoa . A species of the Chenopodium genus which is the source of edible seed called quinoa. It contains makisterone A and other STEROIDS, some having ECDYSTEROID activity on insects. . 0.49
Quinolinic Acid. Quinolinic Acid, Copper(2+) Salt . Quinolinic Acid, Disodium Salt . Quinolinic Acid, Strontium Salt . Quinolinate . A metabolite of tryptophan with a possible role in neurodegenerative disorders. Elevated CSF levels of quinolinic acid are correlated with the severity of neuropsychological deficits in patients who have AIDS. . 0.47
Quinolones. Quinolinones . Ketoquinolines . Oxoquinolines . A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID. . 0.47
Hydroquinones. Quinols . p Dihydroxybenzenes . para Dihydroxybenzenes . p-Dihydroxybenzenes . para-Dihydroxybenzenes . Derivatives of hydroquinone (1,4-dihydrobenzene) made by reduction of BENZOQUINONES. . 0.46
Quinones. Hydrocarbon rings which contain two ketone moieties in any position. They can be substituted in any position except at the ketone groups. . 0.46