Benzonatate is an oral antitussive drug used in the relief and suppression of cough in patients older than ten years of age.[A5790] Currently, benzonatate is the only non-narcotic antitussive available as a prescription drug.[A189519] It works to reduce the a…

Oxymetazoline is an imidazole derivative and a potent, direct-acting alpha (?)-adrenergic agonist with affinity to both ?₁- and ?₂-adrenoceptors.[A215542] Oxymetazoline is available in various formulations with a wide variety of clinical…

Tetracaine is an ester local anaesthetic currently available in combination with lidocaine as a cream and patch.