Common use

Bupropion + Naltrexone is a clinically proven combination weight loss medication designed for comprehensive obesity treatment and long-term weight management in adults. This dual-action formulation combines two distinct pharmacological agents: bupropion, an NDRI (norepinephrine-dopamine reuptake inhibitor) antidepressant that affects the brain's reward and appetite centers, and naltrexone, an opioid antagonist that modulates the brain's reward pathways involved in food cravings and compulsive eating behaviors.

Together, these two medications work synergistically as a powerful appetite suppressant — reducing hunger, controlling food cravings, and helping patients eat less without the constant struggle against willpower alone. When you buy Bupropion Naltrexone online, you receive a Contrave generic that has been extensively studied in large clinical trials and shown to produce significant BMI reduction and sustainable weight loss when combined with a reduced-calorie diet and increased physical activity. This anti-obesity medication is specifically indicated for adults with a BMI of 30 or greater (obesity) or a BMI of 27 or greater (overweight) with at least one weight-related health condition such as hypertension, type 2 diabetes, or high cholesterol.

Dosage and direction

This weight loss medication is taken orally with a carefully structured dose-escalation schedule to minimize side effects and improve tolerability. Treatment typically begins with one tablet once daily during the first week, increasing gradually over four weeks to the maintenance dose of two tablets twice daily (morning and evening). Take the tablets whole — do not crush, chew, or split them, as this can alter the medication's release properties.

Bupropion + Naltrexone can be taken with or without food, but should not be taken with high-fat meals, as this significantly increases bupropion absorption and may raise the risk of seizures. Follow the titration schedule provided by your healthcare provider exactly as prescribed. If significant weight management results are not achieved within 12 weeks at the full maintenance dose (at least 5% body weight reduction), your doctor may recommend discontinuing this appetite suppressant, as continued treatment is unlikely to produce meaningful additional BMI reduction.

Precautions

Before starting this anti-obesity medication, inform your doctor about your complete medical history, including any history of seizures or seizure disorders, eating disorders (bulimia, anorexia nervosa), uncontrolled hypertension, current or recent opioid use or dependence, head trauma, brain tumors, or alcohol dependence with active drinking. Bupropion lowers the seizure threshold, and certain risk factors can significantly increase the likelihood of seizures during treatment.

Regular monitoring of blood pressure and mental health is essential throughout treatment, as the bupropion component (an NDRI) may increase the risk of suicidal thoughts or behavior in some individuals, particularly young adults under 25. The naltrexone component (opioid antagonist) blocks the effects of opioid pain medications — if you require emergency pain treatment or surgery, inform your medical team immediately that you are taking this weight loss medication, as standard opioid analgesics will be ineffective. Avoid alcohol consumption and high-fat meals during treatment. Maintain regular follow-up appointments to track your weight management progress and monitor for side effects.

Contraindications

Bupropion + Naltrexone is contraindicated in individuals with uncontrolled hypertension, seizure disorders (epilepsy), a current or prior diagnosis of bulimia nervosa or anorexia nervosa, or those undergoing abrupt withdrawal from alcohol, benzodiazepines, barbiturates, or antiepileptic drugs. This weight loss medication must not be used by patients currently taking opioid medications, those in acute opioid withdrawal, or those receiving chronic opioid therapy — the naltrexone component can precipitate severe opioid withdrawal syndrome.

This appetite suppressant is also contraindicated in patients using MAO inhibitors (or within 14 days of discontinuation), in those taking other bupropion-containing products, and in individuals with known hypersensitivity to bupropion, naltrexone, or any excipient. Use during pregnancy is not recommended due to potential risks to the developing fetus — effective contraception should be used throughout treatment. Discuss all contraindications with your doctor before you buy Bupropion Naltrexone online for obesity treatment.

Possible side effect

Common side effects of this weight management medication include nausea (the most frequently reported effect, especially during dose escalation), constipation, headache, dizziness, dry mouth, insomnia, and vomiting. Some patients may experience increased blood pressure or heart rate — regular cardiovascular monitoring is recommended. These side effects typically improve as the body adjusts to the medication over the first few weeks.

Rare but serious side effects include seizures (dose-dependent risk related to the bupropion NDRI component), suicidal thoughts or behavior (particularly in young adults), liver damage or hepatotoxicity (related to the naltrexone opioid antagonist component), and severe allergic reactions including anaphylaxis, Stevens-Johnson syndrome, or angioedema. Seek immediate medical attention if you experience mood changes, confusion, seizures, persistent nausea, yellowing of the skin or eyes, dark urine, or severe allergic symptoms while taking this anti-obesity medication.

Drug interaction

Bupropion + Naltrexone has significant interactions with several drug classes. MAO inhibitors are contraindicated due to the risk of hypertensive crisis. Opioid medications (including prescription pain relievers, cough suppressants containing codeine, and opioid-based anti-diarrheal agents) are blocked by the naltrexone component and must not be used concurrently. Other antidepressants (SSRIs, SNRIs, tricyclics), antipsychotics, theophylline, systemic corticosteroids, and drugs that lower the seizure threshold may increase the risk of seizures when combined with the bupropion component.

CYP2D6 substrates (such as metoprolol, certain antidepressants, and antiarrhythmics) may have their blood levels increased by bupropion, requiring dose adjustments. Alcohol consumption significantly increases the risk of both seizures and central nervous system depression and should be avoided throughout treatment. Always inform your doctor about all medications, supplements, and substances you are using before starting this weight loss medication.

Missed dose

If you miss a dose of Bupropion + Naltrexone, take it as soon as you remember unless it is close to the time of your next scheduled dose. Do not take two doses at once to compensate for a missed one, as this increases the risk of seizures and other dose-dependent side effects. Missing doses may reduce the effectiveness of this appetite suppressant for weight management. Try to take the medication at the same times each day — morning and evening — to maintain consistent blood levels and optimal BMI reduction results.

Overdose

Overdose of this anti-obesity medication may result in serious symptoms including seizures, hallucinations, rapid or irregular heartbeat, confusion, severe nausea, loss of consciousness, and respiratory depression. The seizure risk is particularly elevated with bupropion overdose. Seek emergency medical help immediately if overdose is suspected. Supportive care is typically provided in a hospital setting, as there is no specific antidote. Activated charcoal may be administered if the patient presents early. Do not exceed the prescribed dose of this weight loss medication under any circumstances.

Storage

Store Bupropion + Naltrexone at room temperature between 68-77 degrees F (20-25 degrees C), away from heat, moisture, and direct light. Keep this weight management medication in its original container, tightly sealed, and out of the reach of children and pets. Do not use after the expiration date. Dispose of unused or expired medicine properly according to local pharmacy regulations or take-back programs.

Disclaimer

We provide only general information about medications which does not cover all directions, possible drug integrations, or precautions. Information at the site cannot be used for self-treatment and self-diagnosis. Any specific instructions for a particular patient should be agreed with your health care adviser or doctor in charge of the case. We disclaim reliability of this information and mistakes it could contain. We are not responsible for any direct, indirect, special or other indirect damage as a result of any use of the information on this site and also for consequences of self-treatment.