These may also make you drowsy. Codeine will also cause constipation. Increasing the amount of fiber in your diet can also help to alleviate constipation. If your pain is not being adequately treated, talk to your doctor. It is dangerous to drink alcohol while taking this medication.
Codeine is in a class of drugs called narcotic analgesics.
It relieves pain. Acetaminophen is a less potent pain reliever that increases the effects of codeine. Caffeine is believed to constrict dilated blood vessels that may contribute to tension headaches. Together, acetaminophen, butalbital, caffeine, and codeine are used to relieve complex tension headaches although precisely how it works is unknown. This medication is habit forming and should only be used under close supervision if you have an alcohol or drug addiction.