Nursing care
Bupropion: what to check before you give it
Written and reviewed by Dana Whitfield, RN, MSN · 4 min read · Updated September 2026
Short answer
Bupropion is an atypical antidepressant chosen because it does not cause the sexual dysfunction common with SSRIs, and it can also aid smoking cessation. Its defining risk is a lowered seizure threshold, which makes it contraindicated in patients with eating disorders or seizure disorders.
Why this drug and not another
Bupropion works on dopamine and norepinephrine reuptake rather than serotonin, which is why it does not carry the sexual side effects that drive many patients to stop SSRIs. Prescribers reach for it when a patient has already had sexual dysfunction on another antidepressant, or when weight gain from other agents is a concern, since bupropion is weight-neutral or associated with modest weight loss.
It is also marketed as Zyban for smoking cessation, and the same drug is sometimes prescribed for both depression and nicotine dependence at once. Patients on bupropion tend to report more energy and less sedation than on SSRIs, which suits patients whose depression presents with fatigue and low motivation rather than agitation.
Administration and timing
Bupropion comes in immediate-release, sustained-release, and extended-release formulations, and the dosing schedule depends entirely on which one is prescribed. Extended-release is typically once daily in the morning; sustained-release is usually twice daily with doses spaced at least eight hours apart. Tablets must be swallowed whole and never crushed, cut, or chewed, because doing so destroys the extended-release mechanism and delivers the full dose at once, sharply raising seizure risk.
Give it with food if the patient reports nausea. Confirm the exact formulation before administering, since immediate-release, SR, and XL products are not interchangeable milligram for milligram, and a dosing error between them is a real medication safety hazard.
Monitoring parameters
Track weight and appetite, since bupropion's effect here is a genuine reason patients are switched to it. Monitor blood pressure, particularly in patients with pre-existing hypertension, as bupropion can raise it. Ask about seizure history and eating disorder history at every medication reconciliation, not only at initial prescribing.
Watch mental status and mood closely in the first few weeks and after any dose change, as with all antidepressants, because the risk of increased suicidal ideation is highest early in treatment, especially in patients under 25. Document sleep pattern and anxiety level too, since bupropion's activating effect can worsen insomnia or agitation in a subset of patients.
Adverse effects to report
Report any seizure activity immediately; it is the adverse effect this drug is most known for and the reason dose and formulation matter so much. Report new or worsening agitation, anxiety, or insomnia, which are common and dose-related rather than rare.
Report tachycardia or a significant rise in blood pressure. Also report any sign of psychosis or hallucination, which can occur at higher doses or with rapid titration. Dry mouth, headache, and tremor are expected and usually do not require the drug to be stopped, but should still be documented and reassessed if they persist.
Contraindications and cautions
Bupropion is contraindicated in patients with a current or past diagnosis of anorexia nervosa or bulimia nervosa, because the electrolyte disturbances and malnutrition common in eating disorders increase seizure risk on this drug specifically. It is contraindicated in patients with a seizure disorder for the same underlying reason: it lowers the seizure threshold more than most other antidepressants.
It is also contraindicated in patients undergoing abrupt discontinuation of alcohol or benzodiazepines, since that withdrawal state itself lowers seizure threshold and compounds the risk. Use with caution in patients with hepatic or renal impairment, and never combine it with an MAOI or start it within fourteen days of stopping one.
Teaching points the exam tests
Teach patients to swallow the tablet whole and never split, crush, or chew it, since destroying the extended-release formulation can trigger a seizure. Teach them to report any seizure-like activity, and to disclose any history of eating disorder or seizures before starting the medication, not after.
NCLEX items on bupropion commonly present a patient with a history of bulimia or a seizure disorder and ask you to identify the contraindicated medication, or present sexual dysfunction on an SSRI and ask which alternative avoids that side effect. Expect the correct answer to hinge on exactly these two facts: it does not cause sexual dysfunction, and it lowers seizure threshold.
The next step on this is the same as on everything else here: answer questions and read the rationales. Our mental health practice questions are the closest set to what this page covers.
Common questions
Can bupropion be given to a patient with a history of an eating disorder?
No. Bupropion is contraindicated in patients with current or past anorexia nervosa or bulimia nervosa because the electrolyte disturbances associated with eating disorders raise seizure risk on this drug. Flag any eating disorder history before administration.
Why is bupropion preferred over an SSRI for some patients?
It does not cause the sexual dysfunction common with SSRIs and tends to be weight-neutral rather than causing weight gain. It also has an activating rather than sedating effect, which suits patients whose depression presents with fatigue.
What is the priority nursing action before giving bupropion?
Confirm the patient has no history of seizure disorder or eating disorder, and confirm the formulation, since immediate-release, sustained-release, and extended-release products are dosed differently. Never crush or split the tablet.
Is bupropion the same as Zyban?
Yes, Zyban is bupropion marketed specifically for smoking cessation. The active drug and seizure precautions are the same regardless of which brand or indication it is prescribed for.
More on mental health