how long take tylenol codeine to get out system
How Long Does Codeine Stay in Your System? How Long Does Codeine Stay in Your System? Codeine has a relatively short elimination half-life, which refers to how long it takes for half of a single dose of a drug to leave the body. The half-life of codeine is around three to four hours, which means that an entire dose of codeine will leave your system in approximately 16 hours or less.