Which GLP-1 is best for weight loss? It depends on you

Same ingredient does not mean the same approved use. MedlinePlus lists semaglutide brands including Ozempic and Wegovy, and tirzepatide brands Mounjaro and Zepbound. Keep the brand name attached to the reason it is prescribed. The table is a decoder, not a winner’s podium.

Wegovy is the semaglutide version approved for weight management. Zepbound is the tirzepatide version approved for weight management and for moderate to severe obstructive sleep apnea in adults with obesity. Its label pairs weight management with a reduced-calorie diet and more physical activity.

Ozempic and Mounjaro are approved for type 2 diabetes, not weight loss. Ozempic also has heart and kidney uses. An ingredient name or a social post does not change that distinction. Ask your prescriber to explain the specific brand and purpose in your care plan.

Compounded drugs are not FDA approved. FDA does not review them for safety, effectiveness or quality. FDA lists claims that a compounded drug is the same as an FDA-approved drug as a red flag.

The FDA also flags prices that seem too good to be true and no screening or prescription by a licensed doctor. It says to buy only from state-licensed pharmacies. It knows of counterfeit Ozempic in the US. A familiar name on a package is not enough.

Products labeled “for research purposes” or “not for human consumption” are illegal for people, according to FDA. Take questions about a product to a prescriber or licensed pharmacist rather than relying on a seller’s promises. A tempting checkout page is not a medical review.

KFF’s Oct–Nov 2025 Health Tracking Poll found that 56% of adults who had used GLP-1 drugs said they were difficult to afford. Among people who ever used them, 14% stopped because of cost and 13% stopped because of side effects. These are poll answers about GLP-1 use, not Zepbound trial results.

We show no prices here. Ask your insurer what your plan covers and ask your prescriber how cost fits your care. Do not read a poll percentage as a forecast for you. The point is to bring the money question into the conversation before it becomes a surprise.

Ask what symptoms should prompt a call, how you will reach the practice and how follow-up will work. If you are planning cosmetic surgery or another procedure, tell every provider about your medicines. Zepbound’s label warns about food or liquid entering the lungs during anesthesia or deep sedation.

Which GLP-1 is best for weight loss cannot be answered by a brand battle alone. You do not need to pick a favorite before a consult. Bring your health history, questions and insurance details. Leave with a plan you understand, not a promise about pounds.