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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 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 β-adrenergic receptor agonist, thereby mediating its bronchodilator effects.