How long does it take champix to leave your system?

Champix (varenicline) typically has a half-life of about 24 hours, meaning it takes approximately 5-7 days for the drug to be mostly eliminated from your system. However, this can vary based on individual factors such as metabolism, age, and overall health. It's important to note that while the drug may leave your system, its effects on smoking cessation can last longer. Always consult with a healthcare professional for personalized advice.