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5 Best Naltrexone for Weight Loss Alternatives in 2026

Naltrexone alone has modest weight loss effects and is primarily approved for alcohol and opioid dependence. Here are the top alternatives worth considering.

Last updated: March 2026

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Why Look for Naltrexone Alternatives?

Naltrexone alone has modest weight loss effects and is primarily approved for alcohol and opioid dependence. Whether you're looking for a more affordable option, different medication type, or a provider that better fits your needs, there are several strong alternatives available in 2026.

Naltrexone contains naltrexone. Some alternatives use the same active ingredient at a lower price, while others use different medications that may work equally well for your situation.

Top Naltrexone Alternatives

1

Contrave

Oral combination

Oral weight loss medication combining naltrexone and bupropion. Works on appetite and cravings through different pathways than GLP-1.

2

Semaglutide

GLP-1 agonist

FDA-approved GLP-1 medication shown to produce 15-17% body weight loss in clinical trials. Available as weekly injection or daily oral tablet.

3

Tirzepatide

Dual GLP-1/GIP agonist

Dual-action medication targeting both GLP-1 and GIP receptors. Shows up to 22.5% body weight loss in clinical trials.

4

Liraglutide

GLP-1 agonist

Daily GLP-1 injection (brand names Saxenda/Victoza). Produces 5-8% body weight loss. Well-established safety profile.

5

Phentermine

Appetite suppressant

Short-term appetite suppressant (12-week limit). Stimulant-based mechanism with potential for dependency.

Naltrexone vs Alternatives

Option Type
Contrave Oral combination
Semaglutide GLP-1 agonist
Tirzepatide Dual GLP-1/GIP agonist
Liraglutide GLP-1 agonist
Phentermine Appetite suppressant

How to Choose the Right Naltrexone Alternative

When evaluating alternatives, consider these factors:

  • Your budget: Compounded medications cost 60-85% less than brand-name options. Telehealth providers vary widely in pricing.
  • Insurance coverage: Some medications and providers accept insurance, which can dramatically reduce out-of-pocket costs.
  • Medical history: Your healthcare provider can help determine which medication type is safest and most effective for your specific health profile.
  • Convenience: Consider injection frequency (daily vs weekly), oral options, and whether you want coaching or just medication.
  • Track record: Established medications with longer clinical histories offer more safety data, while newer options may show better efficacy.

Always consult with a healthcare provider before switching medications or starting a new weight loss program. The alternatives listed here are for informational purposes to help guide your conversation with your doctor.

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