Question: how long does it take for nicotine to leave your body after quitting?
Answer: Nicotine is out of your body 72 hours after you quit smoking. Nicotine withdrawal symptoms usually reach their peak 2 to 3 days after you quit, and are gone within 1 to 3 months. (1) It takes at least 3 months for your brain chemistry to return to normal after you quit smoking.