| Many OTC cough medications contain both guaifenesin and dextromethorphan. |
| And it confirmed that dextromethorphan doesn't work either. |
| A stabilized solid pharmaceutical preparation which comprises a dextromethorphan and a phenylpropanolamine as active ingredients and a caffeine. |
| Use over-the-counter cough suppressants with dextromethorphan only if your cough interferes with sleep or other activities. |
| A therapeutic composition comprising a neuropathic pain alleviating amount of a mixture of dextromethorphan and dextrorphan or the pharmaceutically acceptable salts thereof, further comprising a local anesthetic. |
| Most cough preparations containing dextromethorphan also contain a decongestant and an expectorant. |
