Smoking: Nicotine Dependence

Nicotine dependence involves adaptations that make continued nicotine use reinforcing and stopping uncomfortable. Cravings, irritability, concentration difficulty and other withdrawal experiences can maintain smoking. In schizophrenia, these effects may interact with symptoms, routines and social circumstances, but they do not mean that tobacco is medically necessary.

Smoking is common among people receiving care for schizophrenia, but patterns and reasons vary. Tobacco smoke and nicotine have different pharmacological roles, which matters when discussing medication interactions. Assessment should address dependence, physical health and treatment exposure without assuming that smoking is necessary for cognitive function or that cessation support is unsuitable for people with psychosis.

Assessment asks about use patterns, previous attempts to stop and what smoking provides for the person. It may function as a break, social activity or coping routine as well as nicotine delivery. Support can address both dependence and those practical roles. Withdrawal-related concentration changes should not be mistaken for proof that smoking treats schizophrenia. Evidence-based cessation options can be considered with the clinical team. A respectful approach recognises the difficulty of change and offers ongoing help rather than framing dependence as a simple failure of willpower or motivation.

Nicotine delivery and the rituals of smoking can reinforce each other. A cigarette may mark a break, provide social contact or structure a day as well as relieve withdrawal. Cessation support can address these functions separately. This makes the plan more practical and avoids assuming that replacing nicotine alone will automatically resolve every reason the person continues to smoke.

Further reading: NICE clinical guideline; NHS Specialist Pharmacy Service.