How long does nicotine stay in the body and what mechanisms are used to test for nicotine in the body?
The amount of nicotine, cotinine, carbon monoxide, or other components found in the body varies with the amount of tobacco used, the type of product used and a person’s smoking behavior (e.g. how deeply the person inhales). However, within 3 to 4 days of quitting, any by-products found in the body should be at levels low enough to indicate that the person is no longer actively smoking.
