Prescription Weight-Loss Drug Comparison Tool
Trying to decide if Contrave is the right prescription for your weight‑loss journey? You’re not alone. Hundreds of people compare it to newer drugs like Wegovy or older combos like Qsymia before committing. This guide cuts through the hype, lines up the facts, and shows you which pill fits which lifestyle.
Quick Takeaways
- Contrave blends Naltrexone (an opioid antagonist) and Bupropion (an antidepressant) to curb cravings.
- Average weight loss with Contrave is 5‑10% of body weight after a year, slower than GLP‑1 agonists but with a lower injection burden.
- GLP‑1 drugs (Wegovy, Saxenda) deliver 15‑20% loss but can cause gastrointestinal upset and cost more.
- Combination pills like Qsymia offer 8‑10% loss but raise blood pressure and have higher abuse potential.
- Choosing the best option hinges on your health profile, budget, and tolerance for side effects.
What Is Contrave?
Contrave is a prescription medication that combines Naltrexone, an opioid‑blocker used for alcohol and opioid dependence, with Bupropion, an atypical antidepressant that also functions as a smoking‑cessation aid. The blend targets two brain pathways: the reward system that triggers food cravings and the hypothalamic appetite center. FDA approval came in 2014 for chronic weight management in adults with a BMI≥30, or ≥27 with at least one weight‑related condition.
Key Alternatives on the Market
Since 2017, the weight‑loss arena has exploded with injectable GLP‑1 receptor agonists and other oral combos. Below are the main players you’ll hear about:
- Wegovy (semaglutide) - a weekly injection proven to trim up to 20% of body weight.
- Saxenda (liraglutide) - a daily injection with average 12‑15% loss.
- Qsymia (Phentermine/Topiramate) - an oral combo that delivers 8‑10% loss.
- Belviq (lorcaserin) - withdrawn in 2020 but still referenced in older studies.
- Phentermine - a short‑term stimulant approved since the 1950s.
How the Drugs Work: Mechanisms at a Glance
Understanding the physiology helps you predict side effects and success rates.
- Contrave: Naltrexone blocks opioid receptors linked to reward; Bupropion raises dopamine and norepinephrine, reducing appetite and cravings.
- Wegovy / Saxenda: Both mimic the gut hormone GLP‑1, slowing gastric emptying and signaling fullness to the brain.
- Qsymia: Phentermine stimulates release of norepinephrine, while Topiramate modulates GABA pathways, together suppressing appetite.
- Phentermine: Acts mainly as a sympathomimetic, increasing heart rate and metabolism.

Side‑Effect Profiles Compared
Medication | Common Side Effects | Serious Risks |
---|---|---|
Contrave | Nausea, headache, dry mouth, insomnia | Elevated blood pressure, potential seizure risk (if history) |
Wegovy | Vomiting, diarrhea, constipation, abdominal pain | Pancreatitis, gallbladder disease, possible thyroid C‑cell tumors (in rats) |
Saxenda | Nausea, decreased appetite, dyspepsia | Pancreatitis, gallbladder disease, rare medullary thyroid carcinoma |
Qsymia | Paraesthesia, dry mouth, constipation, insomnia | Increased heart rate, hypertension, birth defects (if taken in pregnancy) |
Phentermine | Elevated heart rate, insomnia, dry mouth | Pulmonary hypertension, addiction potential |
Effectiveness: How Much Weight Can You Expect?
Clinical trials give us a ballpark. Keep in mind individual results vary based on diet, exercise, and genetics.
- Contrave: 5‑10% of initial weight after 12 months (average 7%).
- Wegovy: 15‑20% after 68 weeks (average 18%).
- Saxenda: 12‑15% after 56 weeks (average 13%).
- Qsymia: 8‑10% after 1 year (average 9%).
- Phentermine: 3‑5% after 12 weeks (short‑term only).
Cost Considerations
Price often decides the winner.
- Contrave: roughly $300‑$350 per month (generic not yet available).
- Wegovy: $1,300‑$1,500 per month (insurance may cover part).
- Saxenda: $900‑$1,100 per month.
- Qsymia: $100‑$150 per month (generic versions exist).
- Phentermine: $30‑$70 per month.
Choosing the Right Option: Decision Matrix
Match your health picture to the drug’s strengths.
Scenario | Ideal Medication | Why It Fits |
---|---|---|
Need oral pill, dislike injections | Contrave or Qsymia | Both are taken daily; no needles. |
Looking for the biggest weight loss possible | Wegovy | Highest average % loss; weekly dosing. |
Budget‑conscious, insurance covers generic | Qsymia or Phentermine | Lowest out‑of‑pocket cost. |
History of high blood pressure | Contrave (if BP controlled) or Saxenda | Contrave raises BP modestly; Saxenda has neutral BP effect. |
Concerned about GI upset | Contrave or Phentermine | GLP‑1 agents often cause nausea. |

Potential Pitfalls and How to Avoid Them
- Skipping the titration phase: Contrave must start at 8mg/90mg and ramp up weekly; jumping to full dose spikes side‑effects.
- Ignoring drug interactions: Bupropion raises seizure risk when combined with other stimulants (e.g., Phentermine). Always list all meds to your doctor.
- Neglecting lifestyle support: No pill works without diet and activity changes. Pair prescriptions with a structured nutrition plan.
- Discontinuing abruptly: Stop Contrave gradually to avoid withdrawal‑like symptoms; taper over 2‑3 weeks.
- Underestimating cost: Verify insurance coverage early; many plans now require prior authorization for GLP‑1 drugs.
Real‑World Stories
Maria, 42, with a BMI of 33, tried Contrave after her doctor ruled out surgery. She lost 18lb (8% of her weight) in 9months, reported mild nausea that faded after the third week, and kept the medication for a year before switching to a maintenance plan.
James, 35, opted for Wegovy because he needed rapid loss for a medical procedure. He shed 45lb (20% of his weight) in 14months but experienced occasional vomiting, which his dietitian helped manage.
Bottom Line: Which Drug Wins?
If you prefer a pill, can tolerate a moderate side‑effect profile, and have a moderate budget, **Contrave** sits nicely between older stimulants and pricey injectables. For the most aggressive loss, Wegovy leads, but cost and GI upset are real trade‑offs. Qsymia offers a middle ground on efficacy and price but needs blood‑pressure monitoring.
Next Steps for You
- Schedule a visit with your primary care provider or an obesity‑medicine specialist.
- Bring a list of current meds, health conditions, and insurance details.
- Ask for a trial of the recommended drug with a clear titration plan.
- Enroll in a lifestyle program (online coaching, local group, or dietitian).
- Track weight, side effects, and mood weekly to gauge success.
Frequently Asked Questions
Can I take Contrave if I have high blood pressure?
Contrave can raise systolic pressure by a few points, so doctors usually check that your BP is well‑controlled before starting. If you have severe hypertension, they may prefer a GLP‑1 agent or another oral option with a neutral effect.
How long do I need to stay on Contrave?
The FDA approves Contrave for long‑term use as long as you keep losing weight and tolerate the drug. Most clinicians aim for at least 12 months before deciding to taper or switch.
Is Contrave safe for people with a history of seizures?
Bupropion lowers the seizure threshold, so anyone with a prior seizure, eating disorder, or head trauma should avoid Contrave unless a neurologist clears it.
Do I need a special diet while taking Wegovy?
Wegovy works best with a reduced‑calorie diet (about 500‑750 kcal below maintenance). Your prescribing doctor will usually refer you to a dietitian for a personalized plan.
Which medication has the lowest risk of addiction?
GLP‑1 drugs like Wegovy and Saxenda have negligible abuse potential. Phentermine and Qsymia contain stimulants and carry a higher dependency risk.
Andrea Dunn
October 9, 2025 AT 16:11They don’t want you to know that the pharma giants push Contrave just to keep you hooked on another pill while the real solution is hidden 😒 It’s all part of the grand scheme to control our health choices.