Amidephrine
Amidephrine, or amidefrine, sold under the brand name Fentrinol among others, is a selective α1-adrenergic receptor agonist which is described as an adrenergic or sympathomimetic, vasoconstrictor, and topical nasal decongestant used to treat allergic rhinitis. It is used as the mesylate salt, which has the generic names amidefrine mesilate and amidephrine mesylate. The drug is a substituted phenethylamine derivative and is also known as 3-methylsulfonamidyl-β-hydroxy-N-methylphenethylamine. As of 2000, it remained marketed only in Austria.