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Product Details:

  • CAS No: 139264-17-8
  • AHFC code: 28:32.3
  • Synonyms: ZMT
  • ATC Code: N02CC03
  • Chemical Formula: C16H21N3O2
  • Molecular Weight: 287.3568
  • Assay/Purity: Typically NLT 98%
  • DrugBank: DB00315 (APRD00376)
  • SMILES: CN(C)CCC1=CNC2=CC=C(C[C,H]3COC(=O)N3)C=C12
  • InChl: ULSDMUVEXKOYBU-ZDUSSCGKSA-N
  • PubChem:
  • IUPAC: (4S)-4-({3-[2-(dimethylamino)ethyl]-1H-indol-5-yl}methyl)-1,3-oxazolidin-2-one

Additional Details

Indication:
For the acute treatment of adult migraine with or without auras.
Pharmacodynamics:
Zolmitriptan 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 Zolmitriptan 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 Zolmitriptan in humans.
Mode of Action:
Zolmitriptan binds with high affinity to human 5-HT_B and 5-HT_D receptors leading to cranial blood vessel constriction. Current theories proposed to explain the etiology of migraine headache suggest that symptoms are due to local cranial vasodilatation and/or to the release of sensory neuropeptides (vasoactive intestinal peptide, substance P and calcitonin gene-related peptide) through nerve endings in the trigeminal system. The therapeutic activity of zolmitriptan for the treatment of migraine headache can most likely be attributed to the agonist effects at the 5HT_B/_D receptors on intracranial blood vessels (including the arterio-venous anastomoses) and sensory nerves of the trigeminal system which result in cranial vessel constriction and inhibition of pro-inflammatory neuropeptide release.
Metabolism:
Hepatic. There have been three metabolites identified: indole acetic acid, N -oxide, and N-desmethyl metabolites. However, the N-desmethyl is the only active metabolite.
Toxicity:
General Reference:
Pascual J: [Mechanism of action of zolmitriptan] Neurologia. 1998 Oct;13 Suppl 2:9-15. Pubmed Martin GR: Pre-clinical pharmacology of zolmitriptan (Zomig; formerly 311C90), a centrally and peripherally acting 5HT1B/1D agonist for migraine. Cephalalgia. 1997 Oct;17 Suppl 18:4-14. Pubmed
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