<unk>  works by reducing cravings due to<unk>  addiction. Smoking cigarettes releases high doses of<unk>  to the brain in a matter of seconds as opposed to low doses released over a period of minutes to hours by the various forms of<unk> .<unk>  from<unk>  does not reach as high a concentration in the blood as does<unk>  from smoke inhalation due to different absorption methods.<unk>  relies on systemic venous absorption, whereas<unk>  from cigarettes reaches the arterial system.<unk><unk>  products vary in the time it takes for the<unk>  to enter the body and the total time<unk>  stays in the body. The more quickly a dose of<unk>  is delivered and absorbed, the higher the addiction risk. It is possible to become dependent on some<unk> s.<unk>  patches are applied to the skin and continuously administer a stable dose of<unk>  slowly over 16–24 hours.<unk>  gum,<unk>  sprays,<unk>  toothpicks,<unk>  sublingual tablets, and<unk>  lozenges administer<unk>  orally with quicker<unk>  uptake into the body but lasting a shorter amount of time.<unk>  inhalers are metered-dose inhalers that administer<unk>  through the lungs and mucous membranes of the throat quickly, lasting for a short amount of time. For example, blood<unk>  levels are the highest 5–10 minutes after using the<unk>  nasal spray, 20 minutes after using a<unk>  inhaler or chewing<unk>  gum, and 2–4 hours after using a<unk>  patch.
Nicotine replacement therapy
Stuttering therapy
Psychedelic therapy
Smoking cessation
Stamina therapy
Cognitive behavioral therapy for insomnia
Helminthic therapy
Cobalt therapy