Addiction is defined as repeated use of a psychoactive substance or substances, to the extent. Nicotine addiction is the fundamental reason that individuals persist in using tobacco products, and this persistent tobacco use contributes to many diseases. Smoking is primarily practiced as a route of administration for nicotine through the lungs; it is a way of getting nicotine into your system rapidly. Some people use hand-rolled loose tobacco, while others smoke pipes, cigars or hookahs, mainly industrially manufactured ones.Nicotine is the chemical in tobacco that keeps you smoking.
The gum and lozenge come in 4 mg and 2 mg doses, while the inhaler and tablet come in the 2 mg dose only. Sets of patches come in three sizes: the 24-hour patch has dosages of 21 mg, 14 mg and 7 mg, and the 16-hour patch has dosages of 15 mg, 10 mg and 5 mg.Of all primary care attendees, 73% reported having ever used a tobacco product (life-time regular smokers 53%; life-time occasional smokers 23.5%.). Point prevalence (4 weeks) of smoking was considerably lower (occasional use 4.7%, regular use 24.9%). The rate of DSM-IV nicotine dependence (13.9%) was highest among the youngest age groups.