Naltrexone and Bupropion for Weight Loss: Contrave Guide
Contrave combines extended-release naltrexone and bupropion. It is used with reduced-calorie nutrition and increased physical activity for chronic weight management in eligible patients. It is not a GLP-1 medicine.
What patients should know
How it may help
The combination acts on brain pathways involved in appetite and reward. It can be useful for selected patients who prefer an oral non-GLP-1 option, but response and tolerability vary.
Why separate tablets are not automatically equivalent
Contrave is a specific extended-release product with a defined dose-escalation schedule and stopping rule. Independently combining naltrexone and bupropion is off label and is not product-equivalent.
Response review
The current label includes a response checkpoint after reaching maintenance dosing. Continuing treatment without sufficient benefit may expose a patient to risk without a meaningful likelihood of success.
Who may be evaluated
- A complete review of weight history, previous treatment and current goals
- Screening of blood pressure, medical conditions, pregnancy plans and medication interactions
- Discussion of expected benefit, side effects, insurance coverage, availability and cost
- Follow-up to assess response, tolerability, nutrition, sleep and long-term maintenance
Meeting general criteria does not mean a medication is safe or covered. The clinician applies the current product label and individual medical judgment.
Important safety considerations
- Contraindications include uncontrolled hypertension, seizure disorders, certain eating disorders, use of other bupropion products, chronic opioid use and abrupt discontinuation of alcohol or certain sedatives/antiepileptics.
- Naltrexone blocks opioids and can precipitate withdrawal; disclose pain medicines, cough/diarrhea products, opioid-use treatment and planned procedures.
- Bupropion carries warnings involving suicidal thoughts and neuropsychiatric symptoms; changes in mood or behavior require prompt attention.
- Blood pressure and pulse should be monitored, and tablets should not be crushed, chewed or cut.
Emergency warning: Seek urgent care for severe allergic symptoms, chest pain, fainting, severe or persistent abdominal pain, inability to keep fluids down, signs of dehydration, or other potentially serious symptoms.
How this option compares
| Feature | Contrave | GLP-1/GIP option |
|---|---|---|
| Form | Oral extended-release tablets | Injection or formulation-specific tablet |
| Mechanism | Naltrexone plus bupropion | Incretin pathway |
| Key screening | Opioids, seizures, BP, psychiatric history | GI/endocrine and product-specific risks |
How W8MD can help
- Compare this option with GLP-1 and non-GLP-1 alternatives
- Check medication-specific contraindications and interactions
- Coordinate nutrition, activity, sleep evaluation and body-composition goals
- Plan monitoring, transitions and maintenance rather than treating a prescription as a stand-alone solution
W8MD provides in-person physician-supervised medical weight management through its Brooklyn, New York and Northeast Philadelphia offices. Treatment may include an FDA-approved chronic medication, a carefully selected traditional prescription, nutrition support, sleep evaluation or a medication-free plan.
Weight loss prescription hub · Medication comparison · GLP-1 comparison · Insurance guide · W8MD medical weight loss · WikiMD background article
Frequently asked questions
Can Contrave be used with opioid pain medicine?
Chronic opioid use is a contraindication, and planned opioid treatment requires prescriber coordination.
Is Contrave a stimulant?
It is not a sympathomimetic like phentermine, although bupropion can affect blood pressure and has activating effects.
What if the response is limited?
The prescriber applies the label’s stopping rule and discusses alternatives rather than continuing indefinitely without benefit.
Authoritative references
References are provided for patient education. Current prescribing information controls when product information changes.
Request an appointment
For faster assistance, call the office directly. Brooklyn: 718-946-5500. Philadelphia: 215-676-2334.
Do not submit personal medical details, diagnoses, medication lists or urgent concerns through this general form.
Medical disclaimer: Educational information only; not medical advice or a guarantee of treatment, coverage, availability or results. A medical evaluation is required. Do not start, stop, combine or change prescription medication without the prescribing clinician. Call 911 for an emergency.
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