Hydrocodone combination products are used to relieve moderate-to-severe pain. Some others are also used to relieve cough. Hydrocodone is an opioid receptor agonist which works on the mu-opioid ...

hydrocodone is believed to act centrally on the cough center. Homatropine is an anticholinergic that inhibits activity of the muscarinic acetylcholine receptor with less potency than atropine.

OKay, this particular cough and cold medicine does have acetaminophen ... people don't realize that opioid pain medication such as hydrocodone or oxycodone are commonly mixed with acetaminophen ...

hydrocodone is believed to act centrally on the cough center. Homatropine is an anticholinergic that inhibits activity of the muscarinic acetylcholine receptor with less potency than atropine.