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Total 959151 Results
| Label | Description | ILX | Version | Created CID | Modified Time | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Metoclopramide | A dopamine D2 antagonist that is used as an antiemetic. (PubChem) Pharmacology: Metoclopramide, although chemically related to procainamide, does not possess local anesthetic or antiarrhythmic properties. Metoclopramide is used to enhance GI motility, to treat diabetic gastroparesis, as an antinauseant, and to facilitate intubation of the small bowel during radiologic examination. Metoclopramide may be used to treat chemotherapy-induced emesis and as a radiosensitizing agents in the treatment of non-small cell lung carcinoma and glioblastomas in the future. Mechanism of action: Metoclopramide inhibits gastric smooth muscle relaxation produced by dopamine, therefore increasing cholinergic response of the gastrointestinal smooth muscle. It accelerates intestinal transit and gastric emptying by preventing relaxation of gastric body and increasing the phasic activity of antrum. Simultaneously, this action is accompanied by relaxation of the upper small intestine, resulting in an improved coordination between the body and antrum of the stomach and the upper small intestine. Metoclopramide also decreases reflux into the esophagus by increasing the resting pressure of the lower esophageal sphincter and improves acid clearance from the esophagus by increasing amplitude of esophageal peristaltic contractions. Metoclopramide's dopamine antagonist action raises the threshold of activity in the chemoreceptor trigger zone and decreases the input from afferent visceral nerves. Studies have also shown that high doses of metoclopramide can antagonize 5-hydroxytryptamine (5-HT) receptors in the peripheral nervous system in animals. Drug type: Approved. Investigational. Small Molecule. Drug category: Antiemetics. Dopamine Antagonists. Prokinetic Agents | ILX:0106881 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | troy sincomb |
| Metocurine Iodide | Metocurine iodide is a benzylisoquinolinium competitive nondepolarizing neuromuscular blocking agent. It is used as an anesthesia adjunct to induce skeletal muscle relaxation and to reduce the intensity of muscle contractions in convulsive therapy Metocurine iodide has a moderate risk of inducing histamine release and has some ganglion blocking activity. Metocurine iodide can be used most advantageously if muscle twitch response to peripheral nerve stimulation is monitored to assess degree of muscle relaxation. Pharmacology: Metocurine iodide is a benzylisoquinolinium competitive nondepolarizing neuromuscular blocking agent. Metocurine iodide has a moderate risk of inducing histamine release and has some ganglion blocking activity. Metocurine iodide can be used most advantageously if muscle twitch response to peripheral nerve stimulation is monitored to assess degree of muscle relaxation. As with other nondepolarizing neuromuscular blockers, the time to onset of paralysis decreases and the duration of maximum effect increases with increasing doses of metocurine iodide. Repeated administration of maintenance doses of metocurine iodide has no cumulative effect on the duration of neuromuscular block if recovery is allowed to begin prior to repeat dosing. Moreover, the time needed to recover from repeat doses does not change with additional doses. Repeat doses can therefore be administered at relatively regular intervals with predictable results. Mechanism of action: Metocurine iodide antagonizes the neurotransmitter action of acetylcholine by binding competitively with cholinergic receptor sites on the motor end-plate. This antagonism is inhibited, and neuromuscular block reversed, by acetylcholinesterase inhibitors such as neostigmine, edrophonium, and pyridostigmine. Drug type: Approved. Small Molecule. Drug category: Anesthetics, Local. Neuromuscular Nondepolarizing Agents | ILX:0106882 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Metolazone | A quinazoline-sulfonamide that is considered a thiazide-like diuretic which is long-acting so useful in chronic renal failure. It also tends to lower blood pressure and increase potassium loss. (PubChem) Pharmacology: Metolazone is a quinazoline diuretic, with properties generally similar to the thiazide diuretics. A proximal action of metolazone has been shown in humans by increased excretion of phosphate and magnesium ions and by a markedly increased fractional excretion of sodium in patients with severely compromised glomerular filtration. This action has been demonstrated in animals by micropuncture studies. Mechanism of action: The actions of metolazone result from interference with the renal tubular mechanism of electrolyte reabsorption. Metolazone acts primarily to inhibit sodium reabsorption at the cortical diluting site and to a lesser extent in the proximal convoluted tubule. Sodium and chloride ions are excreted in approximately equivalent amounts. The increased delivery of sodium to the distal tubular exchange site results in increased potassium excretion. Metolazone does not inhibit carbonic anhydrase. The antihypertensive mechanism of action of metolazone is not fully understood but is presumed to be related to its saluretic and diuretic properties. Drug type: Approved. Small Molecule. Drug category: Antihypertensive Agents. Diuretics. Diuretics, Sulfamyl | ILX:0106883 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Metoprolol | A selective adrenergic beta-1-blocking agent with no stimulatory action. It's binding to plasma albumin is weaker than alprenolol and it may be useful in angina pectoris, hypertension, or cardiac arrhythmias. (PubChem) Pharmacology: Metoprolol, a competitive, beta1-selective (cardioselective) adrenergic antagonist, is similar to atenolol in its moderate lipid solubility, lack of intrinsic sympathomimetic activity (ISA), and weak membrane stabilizing activity (MSA). Mechanism of action: Like betaxolol and atenolol, metoprolol competes with adrenergic neurotransmitters such as catecholamines for binding at beta(1)-adrenergic receptors in the heart and vascular smooth muscle. Beta(1)-receptor blockade results in a decrease in heart rate, cardiac output, and blood pressure. Drug type: Approved. Investigational. Small Molecule. Drug category: Adrenergic Agents. Adrenergic beta-Antagonists. Anti-Arrhythmia Agents. Antiarrhythmic Agents. Antihypertensive Agents. Sympatholytics | ILX:0106884 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | troy sincomb |
| Metronidazole | A nitroimidazole used to treat amebiasis; vaginitis; trichomonas infections; giardiasis; anaerobic bacteria; and treponemal infections. It has also been proposed as a radiation sensitizer for hypoxic cells. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985, p133), this substance may reasonably be anticipated to be a carcinogen (Merck, 11th ed). Pharmacology: Metronidazole, a synthetic antibacterial and antiprotozoal agent of the nitroimidazole class, is used against protozoa such as Trichomonas vaginalis, amebiasis, and giardiasis. Metronidazole is extremely effective against anaerobic bacterial infections and is also used to treat Crohn's disease, antibiotic-associated diarrhea, and rosacea. Mechanism of action: Unionized metronidazole is selective for anaerobic bacteria due to their ability to intracellularly reduce metronidazole to its active form. This reduced metronidazole then disrupts DNA's helical structure, inhibiting bacterial nucleic acid synthesis and resulting in bacterial cell death. Drug type: Approved. Small Molecule. Drug category: Anti-Infective Agents. Anti-Infectives. Antiprotozoal Agents. Antiprotozoals. Radiation-Sensitizing Agents | ILX:0106885 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | troy sincomb |
| Metyrapone | An inhibitor of the enzyme steroid 11-beta-monooxygenase. It is used as a test of the feedback hypothalamic-pituitary mechanism in the diagnosis of cushing syndrome. (PubChem) Pharmacology: Metopirone is an inhibitor of endogenous adrenal corticosteroid synthesis. Mechanism of action: The pharmacological effect of Metopirone is to reduce cortisol and corticosterone production by inhibiting the 11--hydroxylation reaction in the adrenal cortex. Removal of the strong inhibitory feedback mechanism exerted by cortisol results in an increase in adrenocorticotropic hormone (ACTH) production by the pituitary. With continued blockade of the enzymatic steps leading to production of cortisol and corticosterone, there is a marked increase in adrenocortical secretion of their immediate precursors, 11-desoxycortisol and desoxycorticosterone, which are weak suppressors of ACTH release, and a corresponding elevation of these steroids in the plasma and of their metabolites in the urine. These metabolites are readily determined by measuring urinary 17-hydroxycorticosteroids (17-OHCS) or 17-ketogenic steroids (17-KGS). Because of these actions, metopirone is used as a diagnostic test, with urinary 17-OHCS measured as an index of pituitary ACTH responsiveness. Metopirone may also suppress biosynthesis of aldosterone, resulting in a mild natriuresis. Drug type: Approved. Small Molecule. Drug category: Antimetabolites. Enzyme Inhibitors | ILX:0106886 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Metyrosine | An inhibitor of the enzyme tyrosine 3-monooxygenase, and consequently of the synthesis of catecholamines. It is used to control the symptoms of excessive sympathetic stimulation in patients with pheochromocytoma. (Martindale, The Extra Pharmacopoeia, 30th ed) Pharmacology: In patients with pheochromocytoma, who produce excessive amounts of norepinephrine and epinephrine, administration of one to four grams of metyrosine per day has reduced catecholamine biosynthesis from about 35 to 80 percent as measured by the total excretion of catecholamines and their metabolites (metanephrine and vanillylmandelic acid). The maximum biochemical effect usually occurs within two to three days, and the urinary concentration of catecholamines and their metabolites usually returns to pretreatment levels within three to four days after metyrosine is discontinued. Most patients with pheochromocytoma treated with metyrosine experience decreased frequency and severity of hypertensive attacks with their associated headache, nausea, sweating, and tachycardia. In patients who respond, blood pressure decreases progressively during the first two days of therapy with metyrosine; after withdrawal, blood pressure usually increases gradually to pretreatment values within two to three days. Mechanism of action: Metyrosine inhibits tyrosine hydroxylase, which catalyzes the first transformation in catecholamine biosynthesis, i.e., the conversion of tyrosine to dihydroxyphenylalanine (DOPA). Because the first step is also the rate-limiting step, blockade of tyrosine hydroxylase activity results in decreased endogenous levels of catecholamines, usually measured as decreased urinary excretion of catecholamines and their metabolites, resulting in reduced blood pressure. Drug type: Approved. Small Molecule. Drug category: Enzyme Inhibitors | ILX:0106887 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Mexiletine | Antiarrhythmic agent pharmacologically similar to lidocaine. It may have some anticonvulsant properties. (PubChem) Pharmacology: Mexiletine is a local anesthetic, antiarrhythmic agent (Class Ib), structurally similar to lidocaine, but orally active. Mexiletine has fast onset and offset kinetics, meaning that they have little or no effect at slower heart rates, and more effects at faster heart rates. It shortens the action potential duration, reduces refractoriness, and decreases Vmax in partially depolarized cells with fast response action potentials. Mexiletine either does not change the action potential duration, or decreases the action potential duration. Mechanism of action: Mexiletine, like lidocaine, inhibits the inward sodium current required for the initiation and conduction of impulses, thus reducing the rate of rise of the action potential, Phase 0. Mexiletine decreases the effective refractory period (ERP) in Purkinje fibers in the heart. The decrease in ERP is of lesser magnitude than the decrease in action potential duration (APD), which results in an increase in the ERP/APD ratio. It does not significantly affect resting membrane potential or sinus node automaticity, left ventricular function, systolic arterial blood pressure, atrioventricular (AV) conduction velocity, or QRS or QT intervals Drug type: Approved. Small Molecule. Drug category: Anti-Arrhythmia Agents | ILX:0106888 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Meyer et al 1989 | ILX:0106889 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex | |
| Mezlocillin | Semisynthetic ampicillin-derived acylureido penicillin. It has been proposed for infections with certain anaerobes and may be useful in inner ear, bile, and CNS infections. (PubChem) Pharmacology: Mezlocillin is a penicillin beta-lactam antibiotic used in the treatment of bacterial infections caused by susceptible, usually gram-positive, organisms. The name "penicillin" can either refer to several variants of penicillin available, or to the group of antibiotics derived from the penicillins. Mezlocillin has in vitro activity against gram-positive and gram-negative aerobic and anaerobic bacteria. The bactericidal activity of mezlocillin results from the inhibition of cell wall synthesis and is mediated through mezlocillin binding to penicillin binding proteins (PBPs). Mezlocillin is stable against hydrolysis by a variety of beta-lactamases, including penicillinases, and cephalosporinases and extended spectrum beta-lactamases. Mezlocillin can be used to treat susceptible strains of H. influenzae, Klebsiella species, Pseudomonas species, Proteus mirabilis, E. coli, Enterobacter species, Streptococcus faecelis, Peptococcus species, Peptostreptococcus species, Bacteriodes species (including B. fragilis), Morganella morganii, Serratia species, N. gonorrhoeae, P. vulgaris, and Providencia rettgeri. This drug is discontinued in the U.S. Mechanism of action: By binding to specific penicillin-binding proteins (PBPs) located inside the bacterial cell wall, mezlocillin inhibits the third and last stage of bacterial cell wall synthesis. Cell lysis is then mediated by bacterial cell wall autolytic enzymes such as autolysins; it is possible that mezlocillin interferes with an autolysin inhibitor. Drug type: Approved. Small Molecule. Drug category: Anti-Bacterial Agents. Penicillins | ILX:0106890 | 4 | FDI Lab - SciCrunch.org | 08/24/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | troy sincomb |
| MGluR1 | Group I metabotropic glutamate receptor, positively coupled to phospholipid metabolism. | ILX:0106891 | 4 | FDI Lab - SciCrunch.org | 01/17/2023 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR2 | Group II glutamate receptor negatively coupled to adenylyl cyclase. | ILX:0106892 | 4 | FDI Lab - SciCrunch.org | 01/17/2023 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR3 | Group II metabotropic glutamate receptor, negatively coupled to adenylyl cyclase. | ILX:0106893 | 4 | FDI Lab - SciCrunch.org | 01/17/2023 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR4 | Group III metabotropic glutamate receptor, negatively coupled to adenylyl cyclase activity. | ILX:0106894 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR5 | Group I metabotropic glutamate receptor, positively coupled to phospholipid metabolism. | ILX:0106895 | 4 | FDI Lab - SciCrunch.org | 01/17/2023 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR5a | Group I metabotropic glutamate receptor, positively coupled to phospholipid metabolism and found in the retina. | ILX:0106896 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR6 | Group III metabotropic glutamate receptor, negatively coupled to adenylyl cyclase. | ILX:0106897 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR7 | Group III metabotropic glutamate receptor, negatively coupled to adenylyl cyclase. | ILX:0106898 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| MGluR8 | Group III metabotropic glutamate receptor, negatively coupled to adenylyl cyclase. | ILX:0106899 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
| Mibefradil | Mibefradil was withdrawn from the market in 1998 because of potentially harmful interactions with other drugs. Pharmacology: Mibefradil belongs to a group of medicines called calcium channel blocking agents, or, more commonly, calcium channel blockers. Calcium channel blocking agents affect the movement of calcium into the cells of the heart and blood vessels. As a result, they relax blood vessels and increase the supply of blood and oxygen to the heart while reducing its workload. Mibefradil is a benzimidazoyl-substituted tetraline that selectively binds and inhibits T-type calcium channels. Mechanism of action: Mibefradil is a tetralol calcium channel blocking agent that inhibits the influx of calcium ions across both the T (low-voltage) and L (high-voltage) calcium channels of cardiac and vascular smooth muscle, with a greater selectivity for T channels. Vasodilation occurs in vascular smooth muscle, causing a decrease in peripheral vascular resistance and a resulting decrease in blood pressure. Mibefradil causes a slight increase in cardiac output during chronic dosing. Mibefradil slows sinus and atrioventricular (AV) node conduction, producing a slight reduction in heart rate and a slight increase in the PR interval. It has also been shown to slightly lengthen the corrected sinus node recovery time and AH interval and to raise the Wenckebach point. The mechanism by which mibefradil reduces angina is not known, but is thought to be attributed to a reduction in heart rate, total peripheral resistance (afterload), and the heart ratesystolic blood pressure product at any given level of exercise. The result of these effects is a decrease in cardiac workload and myocardial oxygen demand. Drug type: Small Molecule. Withdrawn. Drug category: Antihypertensive Agents. Calcium Channel Blockers. Vasodilator Agents | ILX:0106900 | 3 | FDI Lab - SciCrunch.org | 06/18/2018 | FDI Lab - SciCrunch.org | term | 12/08/2016 | 0 | NeuroLex | NeuroLex |
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