Use of nicotine chewing gum mimics the pattern of peaks and troughs of nicotine provided by smoking, although blood levels achieved are much lower. Because a piece of gum can be chewed whenever the urge to smoke is felt, the method may be most suitable for the smoker who finds cravings difficult to resist.

It may also provide a greater sense of control over curbing the habit. Chewing also acts as a behavioural substitute for smoking.

There are two strengths – 2mg and 4mg. A piece of gum may be chewed whenever the urge to smoke is felt, but recommended dosages differ slightly between the three available brands, up to a maximum of 25 x 2mg pieces or 15 x 4mg pieces per day.

For all brands, the recommended course of chewing gum is about three months’ use, after which the gum is gradually withdrawn over a few weeks.

• Are there any locally commissioned services that you could join?
• Can you give your staff more training so they can offer a better service?
• Can you work more closely with a local GP practice so that, for example, they refer potential quitters to your pharmacy?