International Drug Mart

Bupropion vs Sertraline

Bupropion vs Sertraline

Brand Names

Wellbutrin, Zyban
Zoloft

Drug Class

Norepinephrine-Dopamine Reuptake Inhibitor (NDRI)
Selective Serotonin Reuptake Inhibitor (SSRI)

Primary Uses

Depression (MDD) - Smoking cessation - Seasonal affective disorder
Depression (MDD) - Anxiety disorders - OCD, PTSD, PMDD

Mechanism of Action

Inhibits reuptake of norepinephrine and dopamine
Inhibits reuptake of serotonin

Typical Starting Dose

150 mg once daily (extended-release)
25–50 mg once daily

Max Daily Dose

400 mg (extended-release) or 450 mg (immediate-release)
200 mg per day

Onset of Action

1–2 weeks for mood improvement; full effect in 4–6 weeks
1–2 weeks for mood improvement; full effect in 4–6 weeks

Common Side Effects

- Insomnia - Dry mouth - Headache - Increased anxiety - Weight loss
Nausea - Diarrhea - Drowsiness - Sexual dysfunction

Weight Impact

May cause weight loss
May cause weight gain

Risk of Serotonin Syndrome

Low
High

Seizure Risk

Higher (especially at high doses or in predisposed individuals)
Low

FDA Pregnancy Category

Category C
Category C

Withdrawal Symptoms

Mild to moderate (less common)
Common if stopped abruptly (dizziness, anxiety, flu-like symptoms)

Alcohol Interaction

Increases risk of seizures
Can increase sedation and impair judgment

Smoking Cessation Aid

Yes (Zyban)
No

Best For

Patients who need to avoid sexual side effects or want to quit smoking
Patients with anxiety, OCD, or needing strong serotonin regulation

Not Recommended For

History of seizures, eating disorders, or abrupt alcohol/benzo withdrawal
Patients at high risk of serotonin syndrome or on other serotonergic meds

Formulations Available

IR, SR, XL tablets
Tablets, oral solution

Half-life

21 hours (parent); active metabolites: up to 37 hours
About 26 hours

Metabolism

Liver (CYP2B6)
Liver (CYP2C19, CYP3A4)
Coupon
Coupon Code
IDMBLG30
Use This Coupon To Buy
Coupon Code
IDMBLG30
Use This Coupon To Buy

Frequently Asked Questions

Can I take bupropion and sertraline together?

+

Yes, doctors sometimes prescribe bupropion and sertraline together to enhance antidepressant effects or reduce sexual side effects from SSRIs. However, this combination may increase the risk of side effects like anxiety, insomnia, or seizures. Always follow a healthcare provider’s guidance when combining antidepressants, as close monitoring is necessary during dual therapy.

Why is bupropion not a first line antidepressant?

+

Bupropion isn’t typically a first-line treatment because it may increase anxiety or seizure risk in some people. SSRIs like sertraline are more widely used initially, especially when anxiety is also present. Bupropion is often chosen when patients can’t tolerate SSRIs or need help with energy, focus, or sexual side effects.

How to switch from sertraline to bupropion?

+

Switching usually involves slowly tapering down sertraline while starting bupropion at a low dose. This minimizes withdrawal symptoms and side effects. Some doctors may overlap the two briefly during the transition. Never stop or switch antidepressants suddenly—always consult a healthcare provider for a personalized, safe tapering schedule.

Does bupropion help with anxiety?

+

Bupropion is not typically used to treat anxiety and may worsen symptoms in some people. It’s more effective for depression, fatigue, or attention issues. However, some people may experience improved mood and focus, which indirectly helps anxiety. It’s best used in people without significant anxiety symptoms.

How quickly does bupropion work for anxiety?

+

If bupropion helps anxiety, effects may begin in 1–2 weeks but full benefits often take 4–6 weeks. However, it\'s not designed to treat anxiety directly and may initially increase restlessness or nervousness. If anxiety worsens, contact your doctor immediately. It\'s important to monitor closely when using bupropion for coexisting conditions.

Related Posts