Clinical data
ATC code none
Legal status
Legal status
  • Withdrawn from market
CAS Number 7681-79-0 YesY
PubChem (CID) 10734
ChemSpider 85308 N
ECHA InfoCard 100.051.218
Chemical and physical data
Formula C12H19NO
Molar mass 193.285 g/mol
3D model (Jmol) Interactive image
 NYesY (what is this?)  (verify)

Etafedrine (INN) or ethylephedrine is a long-acting bronchodilator and has the brand name Nethaprin. It was previously commercially available as both the free base and as the hydrochloride salt from Sanofi-Aventis (now Sanofi) but is now no longer marketed.


Unlike ephedrine and tyramine, etafedrine does not induce the release of epinephrine or norepinephrine and instead acts as a selective β2 adrenoreceptor agonist, thereby mediating its bronchodilator effects.[1]

See also


  1. Lindmar, R; Löffelholz, K; Stieh-Koch, U (1985). "On the mechanism of bronchodilatation by etafedrine". Arzneimittel-Forschung. 35 (3): 602–4. PMID 4039586.

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