Medication is an important part of your ADHD treatment. Many types of drugs can be used to control symptoms of the disorder. You and your doctor will work together to figure out which medication is right for you, along with the ideal dose (amount) and schedule (how often or when you need to take it).
The nicotine will totally be gone within 1-3 days after your last using tobacco. In urine: The urine test normally can detect nicotine level within 3-4 days after the last time you use tobacco. However, if you often smoke or you are passive smokers, nicotine can stay for a period of 15 to 20 days in urine. After this period, no traces of toxic can be found in your urine. In saliva: Nicotine stays in your saliva up to 4 days. In hair: nicotine can stay in hair for months instead of for days.
But for those who are passive smokers the traces of nicotine can be found for as long as 15-20 days... The answer to the question as to how long does nicotine stay in your blood rests on the fact that it gets transformed into a metabolite called cotinine which mixes in the blood and affects the body.