止咳口服 Antitussive .Cough.

Decreases the sensitivity of cough receptors and interrupts cough impulse transmission by depressing the medullary cough center through sigma receptor stimulation; structurally related to codeine

See individual agents.

Concurrent administration with or within 2 weeks of discontinuing an MAO inhibitor.

Avoid use. When an antitussive is needed during pregnancy, dextromethorphan at standard OTC doses is generally considered acceptable. Some sources recommend use be reserved for significant maternal need.

Avoid use

Central nervous system: Confusion, excitement, irritability, nervousness, serotonin syndrome

1 cap 3 times/day