Medication library

Each medicine is listed by its generic name, with its brand names beneath. Search with either one, or with a common misspelling. Approved medicines come first.

22 medicines

FDA-approved for weight managementFull profile

Diethylpropion

(known as Tenuate)

Diethylpropion is an older stimulant-type appetite suppressant tablet. The label describes it as a short-term add-on to diet, for a few weeks. It is a Schedule IV controlled drug.

Also searched as: Tenuate, diethylpropion hydrochloride

FDA-approved for weight managementFull profile

Liraglutide

(known as Victoza, Saxenda)

Brands: Saxenda, Victoza

Liraglutide is an earlier GLP-1 medicine given as a daily injection. Saxenda is the brand approved for weight management, and Victoza is approved for type 2 diabetes.

Also searched as: liraglutide injection, daily GLP-1 shot, liraglutide pen, lyraglutide

FDA-approved for weight managementFull profile

Naltrexone and bupropion

(known as Contrave, Mysimba)

Brands: Contrave

A daily tablet combining naltrexone, an opioid blocker, with bupropion, an antidepressant. Contrave is the FDA-approved brand.

Also searched as: naltrexone bupropion extended-release

FDA-approved for weight managementFull profile

Orforglipron

(known as Foundayo, formerly LY3502970)

Brands: Foundayo

Orforglipron is a once-daily GLP-1 pill that is not a peptide. The FDA approved it for weight management on April 1, 2026.

Also searched as: Foundayo pill, GLP-1 pill from Lilly, LY3502970, oral GLP-1

FDA-approved for weight managementFull profile

Orlistat

(known as Xenical, Alli)

A capsule that blocks part of the fat you eat from being absorbed. It works in the gut, not in the brain. Xenical is the prescription brand.

Also searched as: Xenical, Alli, orlistat capsules

FDA-approved for weight managementFull profile

Phentermine

(known as Adipex-P, Lomaira)

An older, stimulant-type appetite suppressant taken by mouth. The label describes it as a short-term add-on to diet and exercise.

Also searched as: Adipex-P, Lomaira, phentermine hydrochloride

FDA-approved for weight managementFull profile

Phentermine and topiramate

(known as Qsymia)

Brands: Qsymia

A once-daily capsule combining phentermine, an appetite suppressant, with topiramate, an anticonvulsant. Qsymia is the FDA-approved brand.

Also searched as: phentermine topiramate extended-release

FDA-approved for weight managementFull profile

Semaglutide

(known as Ozempic, Wegovy, Wegovy HD, Rybelsus)

Brands: Wegovy, Wegovy HD, Wegovy pill, Ozempic, Rybelsus

Semaglutide copies the gut hormone GLP-1. It is sold as a weekly injection and, since late 2025, as a daily pill for weight management.

Also searched as: GLP-1 pill, GLP-1 shot, oral Wegovy, oral semaglutide

FDA-approved for weight managementFull profile

Setmelanotide

(known as Imcivree)

Setmelanotide (Imcivree) is a daily injection approved only for obesity caused by a few rare genetic conditions or by brain injury near the hypothalamus. It is not a general weight-loss medicine.

Also searched as: Imcivree

FDA-approved for weight managementFull profile

Tirzepatide

(known as Mounjaro, Zepbound, formerly LY3298176)

Brands: Zepbound, Mounjaro

Tirzepatide switches on two gut-hormone receptors, GIP and GLP-1. It is a weekly injection approved for weight management under the brand Zepbound.

Also searched as: tirzepitide, terzepatide, tirz, GLP-1 GIP shot

Under FDA reviewFull profile

CagriSema (cagrilintide plus semaglutide)

CagriSema pairs the amylin analog cagrilintide with semaglutide in one weekly injection. Novo Nordisk filed it with the FDA in December 2025, and no approval is recorded yet.

Also searched as: cagrisema, cagri-sema, cagrilintide semaglutide, CagriSema FDA

InvestigationalFull profile

Cagrilintide

Cagrilintide is a long-acting amylin analogue from Novo Nordisk. On its own it is investigational. It is also half of the CagriSema combination, which is under FDA review.

Also searched as: cagri

InvestigationalFull profile

Eloralintide

Eloralintide is an investigational once-weekly amylin injection from Eli Lilly. Its phase 2 trial showed up to about 20% weight loss at 48 weeks, and phase 3 trials are under way. It is not approved.

Also searched as: LY3841136, eloralintide tirzepatide

InvestigationalFull profile

Maridebart cafraglutide

(known as MariTide, formerly AMG 133)

MariTide is an investigational Amgen injection designed to be given monthly or less often. It blocks the GIP receptor and activates the GLP-1 receptor. It is not approved.

Also searched as: MariTide, AMG 133

InvestigationalFull profile

Mazdutide

(formerly IBI362, LY3305677)

Mazdutide is a weekly GLP-1 and glucagon receptor injection developed by Innovent Biologics under a license from Eli Lilly. China approved it for weight management in 2025. It is not approved in the U.S.

Also searched as: IBI362, LY3305677

InvestigationalFull profile

Pemvidutide

(formerly ALT-801)

Pemvidutide is an investigational weekly injection from Altimmune that targets GLP-1 and glucagon. Its phase 3 trial is in fatty liver disease (MASH). It is not approved.

Also searched as: ALT-801

InvestigationalFull profile

Petrelintide

(formerly ZP8396)

Petrelintide is an investigational once-weekly amylin analogue developed by Zealand Pharma. A phase 2 trial showed up to about 10% weight loss with mostly mild nausea, and Roche has started phase 3 trials. It is not approved.

Also searched as: ZP8396

InvestigationalFull profile

Retatrutide

(formerly LY3437943)

Retatrutide switches on three gut-hormone receptors: GIP, GLP-1 and glucagon. It is an investigational weekly injection from Eli Lilly and is not approved.

Also searched as: reta, LY3437943, retatrutide FDA, ritatrutide

InvestigationalFull profile

Survodutide

(formerly BI 456906)

Survodutide is an investigational weekly injection from Boehringer Ingelheim that activates both the GLP-1 and glucagon receptors. Two phase 3 obesity trials are published, and it is not approved.

Also searched as: BI 456906

InvestigationalFull profile

VK2735

VK2735 is an investigational GIP and GLP-1 medicine from Viking Therapeutics, tested as a weekly injection and a daily tablet. Phase 3 is under way. It is not approved.

Also searched as: VK-2735

InvestigationalFull profile

Zenagamtide (amycretin)

Zenagamtide, formerly called amycretin, is an investigational Novo Nordisk medicine that activates GLP-1 and amylin receptors from a single molecule. It has been tested as a weekly injection and a daily pill. It is not approved.

Also searched as: amycretin, NNC0487-0111

FDA-approved, but not for obesityFull profile

Pramlintide

(known as Symlin)

Pramlintide is an injected amylin analog approved for adults with diabetes who use mealtime insulin. It is not approved for weight loss, though small obesity trials exist.

Also searched as: Symlin, SymlinPen, pramlintide acetate

Looking for a pill? Read the weight-loss pills guide. Or see every brand name matched to its generic name.

How to read the status. "Approved" refers to U.S. FDA approval and only to the use named. Each profile shows how well that status has been checked. Compounded versions are not FDA-approved products and are not listed here.