Pharmacology · single question

A patient taking FLUOXETINE for depression asks about quitting smoking. All of the following statements are accurate EXCEPT:

  1. His current medication will help him quit smoking
  2. Combining certain antidepressants can increase the risk of serotonin syndrome
  3. Bupropion and varenicline are established pharmacological aids for smoking cessation
  4. Nicotine replacement therapy can be used alongside his current medication
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Correct answer: A. His current medication will help him quit smoking

  • A. CORRECT — this is the EXCEPTION. FLUOXETINE is an SSRI indicated for depression. It has NO established efficacy for smoking cessation. The antidepressant that does have that indication is BUPROPION, a norepinephrine–dopamine reuptake inhibitor marketed as Zyban for this purpose — a different drug with a different mechanism.
  • B. This IS accurate. Combining serotonergic agents raises the risk of SEROTONIN SYNDROME — agitation, hyperthermia, clonus, hyperreflexia and autonomic instability. Relevant to dentistry because tramadol is serotonergic and should be avoided in a patient on an SSRI.
  • C. This IS accurate. BUPROPION and VARENICLINE are both first-line pharmacotherapies for smoking cessation, with varenicline generally the most effective single agent.
  • D. This IS accurate. Nicotine replacement is compatible with SSRI therapy and is frequently combined with bupropion for additive benefit.

Note: ⚑ The contributor warned that this item circulates both with and without the word EXCEPT — read the stem twice. Two further dental points on SSRIs: they increase bleeding tendency through impaired platelet serotonin uptake, and they commonly cause xerostomia with its attendant caries risk.

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