Nicotine chewing gum, a product that is intended as an aid to quit smoking, is a good alternative if you have to go several hours without a smoke. I use it for example in long train trips. (Trains in Finland used to have smoking cabins, but they were removed something like half a year ago. They seem to be restricting smoking in general in Finland with a heavy hand, and this blog is my modest effort to fight that phenomenon.)
Nicotine chewing gum comes in two strengths, and there is a variety of flavours. Since I am in Finland, the flavours include salmiakki (salty licorice). I, however, do not like salmiakki so much, and I like best the fruit-flavoured ones. Since the stronger alternative has the nicotine of four cigarettes, there’s a serious chance of nicotine overdose, if it is used more than the instructions tell. It is easy to have the nicotine of eight ordinary cigarettes in the mouth at the same time (just have two pieces of the stronger alternative). In my case, the overdose risk is mitigated by the fact that I do not chew it with the optimal technique. You are supposed to keep the gum against your cheek for extended periods of time, but I just chew it like any ordinary chewing gum. So I do not know how much of the effect really comes from nicotine, and how much is just placebo.