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Rizatriptan Benzoate

  • #LGM Pharma is a Rizatriptan Benzoate CAS# 145202-66-0 API supplier distributor based in the USA. Inquire about DMF, cGMP, price, availability, delivery, purity, and more.
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  • #LGM Pharma offers this active ingredient but not the finished dosage forms.

Product Details:

  • CAS No: 145202-66-0
  • AHFC code:
  • Synonyms: 1H-Indole-3-ethanamine, N,N-dimethyl-5-(1H-1,2,4-triazol-1-ylmethyl)-, monobenzoate, 3-(2-(Dimethylamino)ethyl)-5-(1H-1,2,4-triazol-1-ylmethyl)indole monobenzoate, L 705,126, L 705126, L-705,126, L-705126, Maxalt, Maxalt-MLT, MK 0462, MK 462, MK-0462, MK-462, Rizatriptan benzoate, UNII-WR978S7QHH
  • ATC Code: N02CC04
  • Chemical Formula: C15-H19-N5.C7-H6-O2
  • Molecular Weight: 391.4725
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB00953 (APRD00008)
  • SMILES: CN(C)CCc1c[nH]c2c1cc(cc2)Cn3cncn3.c1ccc(cc1)C(=O)O
  • InChl: 1S/C15H19N5.C7H6O2/c1-19(2)6-5-13-8-17-15-4-3-12(7-14(13)15)9-20-11-16-10-18-20;8-7(9)6-4-2-1-3-5-6/h3-4,7-8,10-11,17H,5-6,9H2,1-2H3;1-5H,(H,8,9)
  • PubChem: 5078
  • IUPAC: N,N-dimethyl-2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]ethanamine

Additional Details

Indication:
For treatment of acute migraine attacks with or without aura.
Pharmacodynamics:
Rizatriptan is a selective agonist of serotonin (5-hydroxytryptamine; 5-HT) type 1B and 1D receptors. It is structurally and pharmacologically related to other selective 5-HT1B/1D receptor agonists and has only a weak affinity for 5-HT1A, 5-HT5A, and 5-HT7 receptors and no significant affinity or pharmacological activity at 5-HT2, 5-HT3 or 5-HT4 receptor subtypes or at alpha1-, alpha2-, or beta-adrenergic, dopamine1,; dopamine2; muscarinic, or benzodiazepine receptors. This action in humans correlates with the relief of migraine headache. In addition to causing vasoconstriction, experimental data from animal studies show that Rizatriptan also activates 5-HT1 receptors on peripheral terminals of the trigeminal nerve innervating cranial blood vessels, which may also contribute to the antimigrainous effect of Rizatriptan in humans.
Mode of Action:
Three distinct pharmacological actions have been implicated in the antimigraine effect of the triptans: (1) stimulation of presynaptic 5-HT1D receptors, which serves to inhibit both dural vasodilation and inflammation; (2) direct inhibition of trigeminal nuclei cell excitability via 5-HT1B/1D receptor agonism in the brainstem and (3) vasoconstriction of meningeal, dural, cerebral or pial vessels as a result of vascular 5-HT1B receptor agonism.
Metabolism:
Rizatriptan is metabolized by monoamine oxidase A isoenzyme (MAO-A) to an inactive indole acetic acid metabolite. In addition, several other inactive metabolites are formed. An active metabolite, N-monodesmethyl-rizatriptan, with pharmacological activity similar to that of the parent compound has been identified in small concentrations (14%) in the plasma.
Toxicity:
Symptoms of overdose include dizziness, fainting, heart and blood vessel problems, high blood pressure, loss of bowel and bladder control, slow heartbeat, and vomiting.
General Reference:
Wellington K, Plosker GL: Rizatriptan: an update of its use in the management of migraine. Drugs. 2002;62(10):1539-74. [PubMed:12093318 ] Wellington K, Jarvis B: Spotlight on rizatriptan in migraine. CNS Drugs. 2002;16(10):715-20. [PubMed:12269863 ] Ikemoto F, Toru T, Aijima H, Natsumeda Y: [Rizatriptan (Maxalt), a new entity of triptan for migraine: pharmacology and therapeutic relevance]. Nihon Yakurigaku Zasshi. 2004 Apr;123(4):295-302. [PubMed:15056946 ] Villalon CM, Centurion D, Valdivia LF, De Vries P, Saxena PR: An introduction to migraine: from ancient treatment to functional pharmacology and antimigraine therapy. Proc West Pharmacol Soc. 2002;45:199-210. [PubMed:12434581 ] Tfelt-Hansen P, De Vries P, Saxena PR: Triptans in migraine: a comparative review of pharmacology, pharmacokinetics and efficacy. Drugs. 2000 Dec;60(6):1259-87. [PubMed:11152011 ]
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