Codeine is a narcotic. It is a pain reliever and a cough suppressant. Promethazine is an antihistamine. It blocks the effects of the naturally occurring chemical histamine in your body. Phenylephrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose). Codeine, phenylephrine, and promethazine is a combination medicine used to treat cold or allergy symptoms such as stuffy nose, sneezing, and cough. Codeine, phenylephrine, and promethazine may also be used for purposes not listed in this medication guide.
Promethazine VC with codeine is a combination of Promethazine, an antihistamine, and codeine, which is a pain-reliever. This medication is often used to treat symptoms of nasal congestion, and allergies, such as coughing and sneezing. It may also be used to treat certain conditions that are not listed here.