Smoking cessation after brain damage does not lead to increased depression: implications for understanding the psychiatric complications of varenicline.

Cognitive and Behavioral Neurology : Official Journal of the Society for Behavioral and Cognitive Neurology
Daniel TranelAntoine Bechara

Abstract

There are concerns that varenicline (Chantix/Champix), a prescription medication used to treat smoking addiction, might cause serious neuropsychiatric side effects, such as depression, self-injurious behavior, and suicide. However, the cause of depression and related symptoms in persons who quit smoking after taking varenicline remains uncertain, because smoking cessation itself can cause such symptoms. We studied 70 patients with brain lesions: 32 had stopped smoking after suffering their lesion (Quitters) and 38 had kept smoking (Non-Quitters). There was no indication of increased depression in the Quitters compared with the Non-Quitters. The 2 groups, which were statistically indistinguishable on demographic and neuropsychological variables, showed the same rates and levels of severity of depression and related symptoms. Moreover, in a subgroup of 16 Quitters who had stopped smoking immediately after their neurological injury in the context of losing their craving to smoke, rates of depression-related symptoms were no higher than in the other Quitters and the Non-Quitters. Smoking cessation did not lead to elevated levels of depression in patients with brain lesions, suggesting that psychiatric complications (particularly de...Continue Reading

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Citations

Oct 31, 2013·Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco·Natassia GaznickAntoine Bechara
Mar 10, 2021·The Cochrane Database of Systematic Reviews·Gemma Mj TaylorPaul Aveyard

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