Tolazoline

Tolazoline
Clinical data
AHFS/Drugs.comInternational Drug Names
Routes of
administration
Intravenous
ATC code
Identifiers
  • 2-Benzyl-4,5-dihydro-1H-imidazole
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.000.408
Chemical and physical data
FormulaC10H12N2
Molar mass160.220 g·mol−1
3D model (JSmol)
  • N\1=C(\NCC/1)Cc2ccccc2
  • InChI=1S/C10H12N2/c1-2-4-9(5-3-1)8-10-11-6-7-12-10/h1-5H,6-8H2,(H,11,12) Y
  • Key:JIVZKJJQOZQXQB-UHFFFAOYSA-N Y
  (verify)

Tolazoline is a non-selective competitive α2-adrenergic receptor antagonist. It is a vasodilator that is used to treat spasms of peripheral blood vessels (as in acrocyanosis). It has also been used (in conjunction with sodium nitroprusside) successfully as an antidote to reverse the severe peripheral vasoconstriction which can occur as a result of overdose with certain 5-HT2A receptor agonist drugs such as 25I-NBOMe, DOB, and Bromodragonfly.