Nicotine Gum: available in two strengths. Ten to 15 pieces required daily. Rest gum against the inside of the cheek between chews.
Nicotine Patch: five different strengths, ranging from seven milligrams to 30mg. Some patches last 16 hours, others 24 hours. Main advantage is the steady dose delivery of nicotine into the blood. Both the strength and duration of patch use can be easily reduced.
Nicotine Nasal Spray: acts very fast due to the absorption characteristics of the lining of the nose. Especially recommended for heavy smokers.
Nicotine Inhalers: one of the latest formulations to come on the market. Major advantage is that if feels like a cigarette to hold, which addresses the psychological issue of "what do I do with my hands"? You suck on the inhaler and nicotine and menthol are delivered to the mouth and throat.
Microtab: a small tablet which you can dissolve under your tongue. One or two tablets per hour, maximum 40 per day. Suits both light and heavy smokers.