[widget id=”ad_unit-16″]ad_unit-16[/widget][widget id=”ad_unit-13″]ad_unit-13[/widget]This is the top (or very close to the top) question I get from readers regarding Chantix.
The first piece of information you need to know is what is the half-life of Chantix? A half-life is the amount of time it takes your body to eliminate one half of a substance.
For example if “drug X” has a half life of 30 minutes it means if you start with 10mg of that drug in your system then 30min later there should only be 5mg of the drug left in the body and after one hour only 2.5mg of the drug left.
There is a specific half-life for every drug we consume. The half-life of Chantix is approximately 24 hours.
Pharmacokinetics principles tell us that it takes 5 to 6 half-lifes to get a drug out of your system. Therefore in the case of Chantix 5 to 6 days after most of the drug is out of your system.
Here is how it works:
*Starting from the last dose of Chantix 24 hours later your body is 50% free of Chantix.
*After two half-life (or 48 hrs) you are 75% free of Chantix.
*After an additional 24 hours(3 half-lifes) your body is 87.5% free of Chantix.
*You continue this progression and after 5 days (5 half-lifes) your system is practically 97% free of Chantix.
*After about a 6 to 7 days your body has only trace amount of Chantix present.
It is worth noting that once the drug is out of your body the effects of the drug can linger awhile until your body fully recovers.