Record Information
Version1.0
Creation Date2009-07-21 20:28:02 UTC
Update Date2026-04-02 23:15:54 UTC
Accession NumberCHEM002311
Identification
Common NameRizatriptan
ClassSmall Molecule
DescriptionRizatriptan is only found in individuals that have used or taken this drug. It is a triptan drug used for the treatment of migraine headaches. It is a selective 5-hydroxytryptamine1 receptor subtype agonist.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.
Contaminant Sources
  • HMDB Contaminants - Urine
  • STOFF IDENT Compounds
  • T3DB toxins
  • ToxCast & Tox21 Chemicals
Contaminant Type
  • Amine
  • Anti-Inflammatory Agent
  • Anti-Migraine Agent
  • Drug
  • Metabolite
  • Organic Compound
  • Selective Serotonin Agonist
  • Serotonin Agonist
  • Serotonin Antagonist
  • Serotonin Receptor Agonist
  • Synthetic Compound
  • Vasoconstrictor Agent
Chemical Structure
Thumb
Synonyms
ValueSource
MK 462 Free baseChEBI
N,N-Dimethyl-2-[5-(1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]-ethanamineChEBI
N,N-Dimethyl-5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indole-3-ethanamineChEBI
RisatriptanChEBI
RizatriptanumChEBI
MaxaltKegg
Rizatriptan benzoatHMDB
Rizatriptan benzoateHMDB
N,N-Dimethyl-2-(5-(1,2,4-triazol-1-ylmethyl)-1H-indole-3-yl)ethylamineHMDB
Chemical FormulaC15H19N5
Average Molecular Mass269.345 g/mol
Monoisotopic Mass269.164 g/mol
CAS Registry Number145202-66-0
IUPAC Namedimethyl({2-[5-(1H-1,2,4-triazol-1-ylmethyl)-1H-indol-3-yl]ethyl})amine
Traditional Namemaxalt
SMILESCN(C)CCC1=CNC2=C1C=C(CN1C=NC=N1)C=C2
InChI IdentifierInChI=1S/C15H19N5/c1-19(2)6-5-13-8-17-15-4-3-12(7-14(13)15)9-20-11-16-10-18-20/h3-4,7-8,10-11,17H,5-6,9H2,1-2H3
InChI KeyULFRLSNUDGIQQP-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as tryptamines and derivatives. Tryptamines and derivatives are compounds containing the tryptamine backbone, which is structurally characterized by an indole ring substituted at the 3-position by an ethanamine.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassIndoles and derivatives
Sub ClassTryptamines and derivatives
Direct ParentTryptamines and derivatives
Alternative Parents
Substituents
  • Tryptamine
  • 3-alkylindole
  • Indole
  • Aralkylamine
  • Substituted pyrrole
  • Benzenoid
  • Azole
  • Pyrrole
  • 1,2,4-triazole
  • Heteroaromatic compound
  • Tertiary aliphatic amine
  • Tertiary amine
  • Azacycle
  • Organopnictogen compound
  • Organonitrogen compound
  • Amine
  • Hydrocarbon derivative
  • Organic nitrogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Biological Properties
StatusDetected and Not Quantified
OriginExogenous
Cellular Locations
  • Cytoplasm
  • Extracellular
  • Membrane
Biofluid LocationsNot Available
Tissue LocationsNot Available
PathwaysNot Available
Applications
Biological Roles
Chemical RolesNot Available
Physical Properties
StateSolid
AppearanceWhite powder.
Experimental Properties
PropertyValue
Melting Point178-180°C
Boiling PointNot Available
Solubility42 mg/mL (for free base)
Predicted Properties
PropertyValueSource
Water Solubility0.34 g/LALOGPS
logP1.67ALOGPS
logP1.77ChemAxon
logS-2.9ALOGPS
pKa (Strongest Acidic)17.24ChemAxon
pKa (Strongest Basic)9.56ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area49.74 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity93.13 m³·mol⁻¹ChemAxon
Polarizability30 ųChemAxon
Number of Rings3ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0a4i-9130000000-5d4f05bf987cb9fd7f28Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-qTof , Positivesplash10-0udi-0590000000-de0b61f549c5a86c98dfSpectrum
LC-MS/MSLC-MS/MS Spectrum - , positivesplash10-0udi-0590000000-de0b61f549c5a86c98dfSpectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Negativesplash10-014i-9000000000-2ee19b9378ec57dc6f43Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-0a4i-3940000000-fea36e233d8f7992136dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0090000000-ec16b67adaf4329a82c3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0fb9-0390000000-142ab3615bb7e088f890Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-05fr-5920000000-27bd73d39b069bbb2232Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-9070000000-08285abbdf6e069d2775Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-9060000000-4bb5daacabdae76b4c33Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00kf-9000000000-308c89a78f967378d554Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0uk9-0290000000-c3ca4cb34ec759f725f9Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-004i-1190000000-6aedfe651c028f506d3dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00di-9300000000-0f35fc5e2bd4d164a051Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-7090000000-43c2efadf3b9b7e5b6ddSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-9010000000-a3f5fa7f89b227f2c0a3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014i-9200000000-74919258163afaab3251Spectrum
Toxicity Profile
Route of ExposureRapid following oral administration. Bioavailability is 45%. Food has no effect on the bioavailability of rizatriptan. However, administering rizatriptan with food will delay by 1 hour the time to reach peak plasma concentration. The rate of absorption is not affected by the presence of a migraine attack.
Mechanism of ToxicityThree 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.
MetabolismRizatriptan 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. Route of Elimination: Approximately 14% of an oral dose is excreted in urine as unchanged rizatriptan while 51% is excreted as indole acetic acid metabolite, indicating substantial first pass metabolism. Half Life: 2-3 hours
Toxicity ValuesNot Available
Lethal DoseNot Available
Carcinogenicity (IARC Classification)No indication of carcinogenicity to humans (not listed by IARC).
Uses/SourcesRizatriptan is used to treat acute migraine attacks. It does not prevent future migraine attacks. [Wikipedia]
Minimum Risk LevelNot Available
Health EffectsNot Available
SymptomsSymptoms of overdose include dizziness, fainting, heart and blood vessel problems, high blood pressure, loss of bowel and bladder control, slow heartbeat, and vomiting.
TreatmentGastrointestinal decontamination, (i.e., gastric lavage followed by activated charcoal) should be considered in patients suspected of an overdose with Rizatriptan. Clinical and electrocardiographic monitoring should be continued for at least 12 hours, even if clinical symptoms are not observed. (7)
Concentrations
Not Available
DrugBank IDDB00953
HMDB IDHMDB0015088
FooDB IDNot Available
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN IDNot Available
PDB IDNot Available
Wikipedia LinkRizatriptan
Chemspider ID4900
ChEBI ID48273
PubChem Compound ID5078
Kegg Compound IDNot Available
YMDB IDNot Available
ECMDB IDNot Available
References
Synthesis Reference

Montserrat Armengol Asparo, Pere Dalmases Barjoan, “Process for preparing a rizatriptan.” U.S. Patent US20050148778, issued July 07, 2005.

MSDSLink
General References
1. 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.
2. Wellington K, Plosker GL: Rizatriptan: an update of its use in the management of migraine. Drugs. 2002;62(10):1539-74.
3. Wellington K, Jarvis B: Spotlight on rizatriptan in migraine. CNS Drugs. 2002;16(10):715-20.
4. 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.
5. 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.