TESSALON, a non-narcotic oral antitussive agent, is 2, 5, 8, 11, 14, 17, 20, 23, 26-nonaoxaoctacosan-28-yl p-(butylamino) benzoate; with a molecular weight of 603.7.
Each TESSALON Perle contains:
Benzonatate, USP 100 mg
Each TESSALON Capsule contains:
Benzonatate, USP 200 mg
TESSALON Capsules also contain: D&C Yellow 10, gelatin, glycerin, methylparaben and propylparaben.
TESSALON acts peripherally by anesthetizing the stretch receptors located in the respiratory passages, lungs, and pleura by dampening their activity and thereby reducing the cough reflex at its source. It begins to act within 15 to 20 minutes and its effect lasts for 3 to 8 hours. TESSALON has no inhibitory effect on the respiratory center in recommended dosage.