Smoking Cessation
Quitting smoking is one of the most effective steps a person can take for their long-term health. Tobacco dependence is driven by nicotine, which alters brain chemistry over time, making stopping genuinely difficult without support. Withdrawal symptoms, irritability, cravings, poor concentration, disrupted sleep, typically peak in the first two weeks and ease considerably after a month.
Medicines used to treat Smoking Cessation
Why quitting is harder than willpower alone
Nicotine binds to receptors in the brain’s reward pathway, releasing dopamine with each cigarette. Over time, the brain expects this stimulus and under-produces dopamine without it. That is what makes the early weeks of quitting so uncomfortable, and why cold turkey has a low success rate.
Medicines that act on these same receptors change the equation significantly. Varenicline partially activates nicotine receptors to blunt cravings while blocking the rewarding effect of any cigarette smoked during a quit attempt. Bupropion, originally developed as an antidepressant (see antidepressants), also reduces cravings and eases withdrawal-related low mood through a different mechanism. Both approaches sit within the broader addiction recovery medicine toolkit.
Smoking rates across Asia
Smoking remains high in several Asian countries, Indonesia, Philippines, South Korea, China, and Vietnam among them, though rates in urban Singapore, Hong Kong, and major Malaysian cities have been falling with stronger public health campaigns. For expats moving between countries, continuity of any quit programme they have started can be disrupted; maintaining access to the same medicines they began with is often more important than starting fresh.