2898 Sumatriptan Oftentimes, serotonin levels in the brain become extremely erratic before the onset of a migraine. In an attempt to stabilize this, sumatriptan is administered to help aid in leveling the serotonin levels in the brain. Sumatriptan is structurally similar to serotonin, and is a 5-HT (5-HT1D) agonist, which is one of the receptors that serotonin binds to. The specific receptor subtype it activates is present in the cranial and basilar arteries. Activation of these receptors causes vasoconstriction of those dilated arteries. Sumatriptan is also shown to decrease the activity of the trigeminal nerve. Sumatriptan is a triptan drug including a sulfonamide group structurally similar to serotonin, and is a 5-HT (5-HT1D) agonist, which is one of the receptors that serotonin binds to. Oftentimes, serotonin levels in the brain become extremely erratic before the onset of a migraine. In an attempt to stabilize this, sumatriptan is administered to help aid in leveling the serotonin levels in the brain. A serotonin agonist that acts selectively at 5HT1 receptors. It is used in the treatment of migraines. Sumatriptan (Imitrex, Imigran, Imigran Recovery) is a triptan drug including a sulfonamide group which was originally developed by Glaxo for the treatment of migraine headaches. 103628-46-2 5358 C14H21N3O2S 295.135450 White powder. 169-171°C 21.4 mg/ml Subcutaneous, Oral, Nasal, Transdermal The 5-HT_1B and 5-HT_1D receptors function as autoreceptors, which inhibit the firing of serotonin neurons and a reduction in the synthesis and release of serotonin upon activation. After sumatriptan binds to these receptors, adenylate cyclase activity is inhibited via regulatory G proteins, incrases intracellular calcium, and affects other intracellular events. This results in vasoconstriction and inhibtion of sensory nociceptive (trigeminal) nerve firing and vasoactive neuropeptide release. Sumatriptan stimulates 5-HT receptors of the 1D subtype, most likely presynaptic receptors, resulting in selective vasoconstriction of inflamed and dilated cranial blood vessels in the carotid circulation. Sumatriptan also blocks the release of vasoactive neuropeptides from perivascular trigeminal axons in the dura mater during migraine and may inhibit the release of inflammatory mediators from the trigeminal nerve. Hepatic. In vitro studies with human microsomes suggest that sumatriptan is metabolized by monoamine oxidase (MAO), predominantly the A isoenzyme. Route of Elimination: Only 3% of the dose is excreted in the urine as unchanged sumatriptan; 42% of the dose is excreted as the major metabolite, the indole acetic acid analogue of sumatriptan. Half Life: 2.5 hours No indication of carcinogenicity to humans (not listed by IARC). For the treatment of migraine attacks with or without aura. Symptoms of overdose include convulsions, tremor, paralysis, inactivity, ptosis, erythema of the extremities, abnormal respiration, cyanosis, ataxia, mydriasis, salivation, and lacrimation. 2009-07-21T20:27:23Z 2014-12-24T20:25:52Z Sumatriptan C07319 10650 Sumatriptan DB00669 true CNS(=O)(=O)CC1=CC2=C(NC=C2CCN(C)C)C=C1 C14H21N3O2S InChI=1S/C14H21N3O2S/c1-15-20(18,19)10-11-4-5-14-13(8-11)12(9-16-14)6-7-17(2)3/h4-5,8-9,15-16H,6-7,10H2,1-3H3 InChIKey=KQKPFRSPSRPDEB-UHFFFAOYSA-N 295.4 295.135447621 Exogenous Solid 0.93 HMDB05037 CHEMBL128 5165 <p>Rajeev Mathur, T. Kumar, Sunilendu Roy, Rajiv Malik, &#8220;Taste masked sumatriptan tablets and processes for their preparation.&#8221; U.S. Patent US20060233875, issued October 19, 2006.</p>