What is the half life of Tylenol with codeine?

The half-life of Tylenol with codeine (acetaminophen and codeine) varies depending on the individual components. Acetaminophen has a half-life of about 2 to 3 hours, while codeine's half-life ranges from 3 to 6 hours. Factors such as metabolism, age, and liver function can influence these values. Overall, the combination's effects will depend on both ingredients' pharmacokinetics.