Visit Contrave (naltrexone/bupropion) is one of the few weight management options approved by Health Canada that is available in the form of oral tablet, rather than by injection. This difference in the method of administration makes it a suitable option for certain patients, depending on their clinical profile and treatment preferences.
On this page
- What is Contrave (naltrexone/bupropion)?
- How Does the Naltrexone/Bupropion Combination Work?
- Who is eligible for Contrave?
- Differences from Injectable Treatments
- Protocol for Administration and Medical Monitoring
- Side Effects and Precautions
- Access to Contrave in Quebec
- Myths and misconceptions
- Frequently asked questions
What is Contrave (naltrexone/bupropion)?
Contrave combines two molecules that are already known individually: the naltrexone, used in particular in the treatment of addictions, and the bupropion, an antidepressant also prescribed to help people quit smoking. Combined in a single tablet, these two active ingredients act on the brain circuits associated with appetite and eating behaviors. Contrave is approved by Health Canada for chronic weight management in adults, in conjunction with a healthy diet and increased physical activity.
To remember
- Contrave combines naltrexone and bupropion in a single tablet
- Oral administration, as opposed to injectable weight-management treatments
- Approved by Health Canada for weight management in adults
- Always prescribed as a supplement to a diet and exercise plan
- Requires a prior medical evaluation, including a psychiatric history
- Not suitable for everyone—there are several specific contraindications
How Does the Naltrexone/Bupropion Combination Work?
Unlike GLP-1 agonists, Contrave acts primarily on the central nervous system:
Combined mechanism
- Effect on the brain centers that regulate appetite and satiety
- Effect on the reward circuits associated with eating behaviors
- A combination designed to produce a synergistic effect greater than that of each molecule taken individually
Who is eligible for Contrave?
Eligibility for Contrave is based on specific clinical criteria, which are evaluated by a doctor:
| Criteria | General Threshold |
|---|---|
| Body Mass Index (BMI) | ≥ 30 kg/m² |
| BMI with associated comorbidities | ≥ 27 kg/m² |
| Psychiatric and Neurological History | Mandatory Assessment |
Because of bupropion, special attention is paid to a history of seizures, eating disorders, and certain concomitant treatments. This additional assessment sets Contrave apart from other weight management options.
Differences from Injectable Treatments
Method of Administration
- Contrave : oral tablet, taken according to a titration regimen
- GLP-1 agonists: daily or weekly subcutaneous injection
Why this option may be suitable for some patients
- A good option for people who prefer to avoid injections
- Different mechanism of action, useful if a GLP-1 agonist is not tolerated or appropriate
- May be considered depending on the patient's psychiatric profile and medical history
The choice among the various options remains an individualized medical decision that takes into account the patient’s complete profile—not just a preference for a particular route of administration.
Protocol for Administration and Medical Monitoring
Stepwise titration
Treatment begins at a low dose, which is gradually increased over several weeks according to a specific schedule and under medical supervision, in order to minimize initial side effects.
Clinical follow-up required
- Comprehensive initial evaluation, including psychiatric and neurological history
- Periodic monitoring of blood pressure and response to treatment
- Adjustments Based on Tolerance and Clinical Goals
- Reassessment of the appropriateness of continuing treatment in the medium term
Side Effects and Precautions
The most commonly reported side effects include nausea, headaches, and dry mouth, especially at the start of treatment. Because it contains bupropion, Contrave has specific contraindications, particularly for people with a history of seizures or eating disorders. Only a healthcare professional can determine whether this treatment is appropriate based on a patient’s complete medical history.
Access to Contrave in Quebec
Access to Contrave requires a medical consultation to assess eligibility, psychiatric and neurological history, and health goals. Our service locations in Quebec offer both in-person and telemedicine consultations for this type of evaluation.
A comprehensive medical evaluation is the first step in determining whether Contrave is an appropriate option for you. Make an appointment at one of our service locations in Quebec, or choose a online consultation. Companies interested in a wellness program for their employees can review our offerings for companies.
Myths and misconceptions
«Contrave is an antidepressant in disguise»
Nuanced. Bupropion, one of the two active ingredients, is indeed used as an antidepressant in other settings, but its combination with naltrexone in Contrave is specifically intended for weight management, with a specific indication approved by Health Canada.
«It's less effective because it's not an injection.»
False. The route of administration does not determine efficacy—each treatment has a distinct mechanism of action, and the choice depends on the individual’s clinical profile.
«Anyone can take Contrave without medical supervision»
False. Due to the contraindications associated with bupropion, a thorough medical evaluation of the patient's medical history is required before any prescription is issued.
«Side effects are inevitable.»
Nuanced. Side effects such as nausea or headaches are common at the start of treatment, but their severity varies and generally subsides as the dose is gradually adjusted.
«The treatment is permanent.»
Nuanced. The duration of treatment is determined in consultation with the treating physician based on the clinical response and the established goals.
Frequently asked questions
Is Contrave covered by RAMQ?
Coverage varies depending on the insurance plan and eligibility criteria. It is recommended that you check your specific coverage with your insurer or the RAMQ.
Can Contrave be taken with a current antidepressant?
Any combination of treatments must be evaluated and approved by a doctor, who will take into account possible interactions, particularly those involving bupropion.
How long before I see results?
The timeframes vary from person to person depending on several individual factors. Regular medical follow-up allows for an assessment of progress and adjustments to the treatment plan.
Is Contrave suitable for everyone?
No. A history of seizures, certain eating disorders, and several concomitant treatments are contraindications that must be evaluated on a case-by-case basis during the medical consultation.
What is the difference between Contrave and GLP-1 agonists?
Contrave is an oral tablet that acts on the central nervous system, whereas GLP-1 agonists (such as Saxenda) are administered by injection and affect appetite differently. The choice depends on an individualized medical evaluation.
Sources
- Health Canada — Pharmaceutical Products Database
- National Institute for Excellence in Health and Social Services (INESSS)
- Quebec Ministry of Health and Social Services (MSSS)
- Quebec College of Physicians (CMQ) — Guidelines on Weight Management
- Quebec Health Insurance Board (RAMQ)
Recommended Reading
- Saxenda in Quebec: Liraglutide for Weight Management
- Mounjaro in Quebec: The Complete Guide
- World Obesity Day: Medical Care and Treatments Available in Quebec
- Oral Weight Management Treatments in Quebec: A Comparison
- Multidisciplinary Support for Weight Management
This information is provided for educational purposes only and is not a substitute for the advice of a healthcare professional. Consult a doctor if you have any questions about your health.
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