Mar 24, - Acetaminophen and codeine is a combination medicine used to In some people, codeine breaks down rapidly in the liver and reaches higher than normal levels in the body. Ativan, Klonopin, Restoril, Tranxene, Versed, Xanax, and others). . Acetaminophen-Codeine mg mg-MAL, white, round. Feb 1, - For example, if a patient is receiving 30 mg of sustained-release morphine (MS-Contin) . Codeine. mg every 3 to 4 hours. NA. 60 mg every 3 to 4 hours *—Not recommended for use in patients with chronic cancer pain. . Clonazepam (Klonopin), in a dosage of mg three times daily, or nifedipine. Nov 8, - mg acetaminophen, 15 mg caffeine and 30 mg codeine phosphate tablets .. Limit dosages and durations to the minimum medxr.comg: klonopin.