Mounjaro vs Ozempic

Mounjaro vs Ozempic: the short answer

Mounjaro's dual mechanism tends to produce more weight loss on average, while Ozempic has a longer history. Both are typically only covered for diabetes, so off-label weight use is usually cash-pay.

Mounjaro is tirzepatide (GIP/GLP-1 receptor agonist) and Ozempic is semaglutide (GLP-1 receptor agonist), so they are different molecules with different average results.

On cost alone, Mounjaro tends to be the cheaper option — its lowest realistic monthly price starts around $25, versus about $25 for Ozempic.

How each medication works

Mounjaro is a GIP/GLP-1 receptor agonist taken as a once-weekly subcutaneous injection. It is FDA-approved for Type 2 diabetes, and is also used off-label for weight loss and weight management.

Ozempic is a GLP-1 receptor agonist taken as a once-weekly subcutaneous injection. It is FDA-approved for Type 2 diabetes, and is also used off-label for weight loss and weight management.

The mechanisms differ: tirzepatide acts on the GLP-1 pathway, while semaglutide works through the GLP-1 pathway as well.

Effectiveness: average weight loss

In clinical data, Mounjaro was associated with roughly 18% average body-weight reduction over about 40 weeks (Tirzepatide diabetes data (SURPASS); off-label for weight).

Ozempic was associated with roughly 12% over about 40 weeks (Semaglutide clinical data (SUSTAIN program); off-label for weight).

Head-to-head averages favor Mounjaro, but individual results vary widely with dose, diet, activity, and how long you stay on treatment. These figures are trial averages, not guarantees.

Cost comparison

Mounjaro: full cash price is around $1,069/mo. With a manufacturer savings program it can drop to about $25/mo, and telehealth routes run roughly $349–$599/mo.

Ozempic: full cash price is around $969/mo. With savings it can drop to about $25/mo, and telehealth routes run roughly $199–$499/mo.

Use the cost calculator to plug in your insurance status and state — the cheapest route often depends on coverage far more than on which drug you pick.

Side effects and safety

The most common side effects overlap heavily: Mounjaro lists nausea, diarrhea, vomiting, and constipation; Ozempic lists nausea, diarrhea, vomiting, and constipation. Most are gastrointestinal and tend to ease as the dose is titrated up slowly.

Both carry serious warnings, including a boxed warning about the risk of thyroid C-cell tumors, and should not be used by people with a personal or family history of medullary thyroid carcinoma or MEN 2. Only a licensed clinician can decide whether either is appropriate for you.

Insurance and how to get each

Mounjaro: Often covered for type 2 diabetes; typically not covered when used off-label for weight loss.

Ozempic: Frequently covered for type 2 diabetes; rarely covered when prescribed off-label for weight loss.

If coverage is denied, most people compare a manufacturer savings program against a telehealth subscription or a compounded alternative where it is still legally available.

Which should you choose?

Choose Mounjaro if maximizing average weight loss is the priority and you can access it affordably. Choose Ozempic if it is easier to get covered or cheaper for your situation.

Whichever you lean toward, run your specifics through the calculator and take our 60-second quiz to see which telehealth provider can actually get it to you for the least.