Etilefrine

Etilefrine
Clinical data
Trade namesEffortil, many others
Other namesEtilephrine; Ethylnorphenylephrine; Ethylphenephrine; Ethyladrianol; Etiladrianol; Aethyladrianol; M-I-36; 3,β-Dihydroxy-N-ethylphenethylamine; 3,β-Dihydroxy-N-ethyl-β-phenylethylamine
AHFS/Drugs.comInternational Drug Names
Routes of
administration
Oral, injection
Drug classAdrenergic receptor agonist; Sympathomimetic
ATC code
Pharmacokinetic data
BioavailabilityOral: 50%
Protein binding23% (8.5% to albumin)
MetabolismConjugation (glucuronidation)
MetabolitesConjugates
• Hydroxymandelic acid (3%)
Elimination half-life2.5 hours
ExcretionUrine (80%; 7–28% unchanged, 44–73% as conjugates)
Identifiers
  • (RS)-3-[2-(ethylamino)-1-hydroxyethyl]phenol
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.010.829
Chemical and physical data
FormulaC10H15NO2
Molar mass181.235 g·mol−1
3D model (JSmol)
ChiralityRacemic mixture
  • CCNCC(O)c1cc(O)ccc1
  • InChI=1S/C10H15NO2/c1-2-11-7-10(13)8-4-3-5-9(12)6-8/h3-6,10-13H,2,7H2,1H3 Y
  • Key:SQVIAVUSQAWMKL-UHFFFAOYSA-N Y
  (verify)

Etilefrine, sold under the brand name Effortil among others, is a sympathomimetic medication used as an antihypotensive agent to treat orthostatic hypotension. It is usually used by mouth, but is also available as an injectable.

Side effects of etilefrine include nausea, tremors, and palpitations, among others. Etilefrine is an agonist of the α- and β-adrenergic receptors. It is a substituted phenethylamine and is related to epinephrine, phenylephrine, and norfenefrine.

Etilefrine was first described and introduced for medical use by 1949.