Compound Profile
Bupropion
Compound profile with evidence, safety, and practical fit.
Safety context — U. Details
At a glance
From this profile's structured data- Evidence
- Grade C
- Safety
- U.
- Profile context
- norepinephrine and dopamine reuptake inhibition, monoamine signaling
Quick stats
- Evidence level
- Limited evidence
- Typical onset
- Varies by prep
- Safety rating
- Safety context: Use caution
- Best for
- Norepinephrine And Dopamine Reuptake Inhibition, Monoamine Signaling
Safety
Safety & Cautions
U. S.
High caution
Caution level: High. Multiple caution categories apply, or the record uses avoid/contraindication language.
- Interaction-AwareMedication or interaction context is explicitly noted.
Evidence Summary
Profile-wide ·C LimitedEvidence lens
Read as directional context, not settled clinical proof.
Human clinical evidence: Present in source signals
Mechanistic / preclinical: Mechanism mapped
Research maturity: Emerging research — main contexts: Norepinephrine And Dopamine Reuptake Inhibition · Monoamine Signaling
Safety boundary: Safety note available — U.
Confidence estimate based on the design quality and consistency of published clinical trials.
Bupropion has a limited evidence rating.
Grade C: Limited Evidence
Evaluation of methodological rigor, population reach, and evidence alignment.
- Design Match
- Meta analysis
- Risk of Bias
- Low
- Consistency
- Consistent
How evidence grades work
Each grade reflects the strength and consistency of published human evidence — not marketing claims. Grades are based on study count, design quality, effect size, consistency, and recency.
- Strong
- Multiple RCTs, consistent direction, adequate effect size
- Moderate
- Some RCTs or consistent observational data in humans
- Preliminary / Mixed
- Animal or in-vitro only, or conflicting human data
- Traditional / Theoretical
- Traditional use only; no controlled human trials
Clinical Study Summaries (4)3 human evidence sources · 1 human trial · Participant totals not consistently reported · Consistency not yet classifiable
Filter by study class
Showing 4 of 4 studies.
What the evidence actually shows
This table contains 4 structured sources, including 3 human evidence sources; 1 is a human trial.
| Study | Design | N | Dose | Duration | Population | Outcome | Result & magnitude | Source |
|---|---|---|---|---|---|---|---|---|
Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | — | — | — | — | — | A 2018 network meta-analysis of 522 randomized trials involving 116,477 adults found all 21 included antidepressants more efficacious than placebo for acute major depressive disorder; bupropion was among the included treatments, with comparative efficacy and acceptability varying across head-to-head comparisons and evidence certainty ranging from moderate to very low. | PubMed → |
Background | Meta-analysis Statistically combines results from multiple eligible studies; confidence still depends on the quality, consistency, and directness of those studies. | — | — | — | — | — | A 2016 systematic review and meta-analysis of 51 studies found placebo-controlled evidence supporting bupropion's antidepressant efficacy, while many head-to-head comparisons found broadly similar depression outcomes to other antidepressants and study heterogeneity limited strong comparative conclusions. | PubMed → |
Background | Randomized controlled trial Randomly assigns participants to interventions or controls, reducing many sources of bias when the trial is conducted well. | — | — | — | — | — | Two randomized double-blind placebo-controlled studies comparing bupropion XL with escitalopram found treatment-emergent sexual dysfunction was less frequent with bupropion XL than with escitalopram among participants with normal sexual functioning at baseline. | PubMed → |
Background | Other / unclear The study design is not yet classified clearly enough to infer its place in the evidence hierarchy. | — | — | — | — | — | A 2026 U.S. DailyMed label for bupropion hydrochloride extended-release tablets (XL) identifies the product as an aminoketone antidepressant indicated for major depressive disorder and prevention of seasonal major depressive episodes in seasonal affective disorder, and carries a boxed warning regarding suicidal thoughts and behaviors in pediatric and young adult patients. | Source → |
Dosing
- No standardized dose
- No standardized dose is established for this ingredient in our source data. Preparations differ widely, so follow the standardization on the product you actually have and speak to a clinician before starting.
Compare & Sourcing
Compare side-by-side tradeoffs or verify active marker guidelines.
Review available sources for Bupropion
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Safety first · Harm reduction
This information is educational and not medical advice. Start low, avoid risky combinations, and consult a licensed clinician before making health decisions—especially if you use medications, have diagnosed conditions, or are pregnant/breastfeeding.
Learn how we evaluate confidence, safety, and intensity on the methodology page.
Editorial Review
Checked against primary sources, cited evidence, and contraindication language before publication. Evidence claims, safety language, and affiliate modules are reviewed independently. Not personal medical advice.
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