Caramiphen is a cholinergic antagonist used in Parkinson's disease. Additionally, it is used, in combination with [phenylpropanolamine], as a cough suppressant and nasal decongestant for the symptomatic treatment of seasonal respiratory conditions.

An adrenergic agonist that acts predominantly at alpha adrenergic receptors and also stimulates the release of norepinephrine. It has been used primarily as a vasoconstrictor in the treatment of hypotension.

Phenylpropanolamine is a sympathomimetic agent that acts as a nonselective adrenergic receptor agonist and norepinephrine reuptake inhibitor. It has been used as a decongestant and appetite suppressant. Currently, it is withdrawn from the market in Canada and…