<unk>  is a chemical that is used in the form of<unk>  hydrochloride in nasal decongestant preparations.  It is an α-adrenergic receptor agonist that inhibits secretion of nasal mucus.
It causes hypertension.
Tramazoline
Tolazoline
Tymazoline
Oxymetazoline
Imidazoline
Naphazoline
Oxymetazoline hydrochloride
Dihydroergotamine 