Mounjaro vs. Wegovy: Which is Better?

Weight Loss

Aug 19, 2025

Two of the most talked-about medications are Mounjaro and Wegovy. Both are designed to help individuals, but they work in different ways and come with their own sets of benefits and potential side effects. 

In this comparison, we’ll explore how Mounjaro and Wegovy stack up against each other, examining their effectiveness, mechanisms of action, side effects, and suitability for various patients.

What is Mounjaro?

Mounjaro (tirzepatide) is a prescription drug used to help manage blood sugar levels in adults with type 2 diabetes. Mounjaro comes as an injection that’s given under your skin.

It works by mimicking the action of incretin hormones, which help regulate blood sugar levels and appetite. By enhancing the body’s insulin response and slowing gastric emptying, Mounjaro not only helps control blood sugar but also promotes a feeling of fullness, reducing overall food intake. 

This dual action makes it a promising option for individuals looking to manage their weight and improve their metabolic health.

What is Wegovy?

Wegovy (semaglutide) is a prescription drug that’s used to help with weight loss in certain people. Wegovy comes as a liquid solution in a prefilled, single-dose pen. It’s given as an injection under the skin.

Wegovy contains the active ingredient semaglutide. It belongs to a group of drugs called glucagon-like peptide-1 (GLP-1) receptor agonists.

Wegovy vs. Mounjaro: Key Differences

Wegovy and Mounjaro are both medications aimed at helping individuals, but they have distinct differences in their mechanisms and uses. Let us find out. 

Active Ingredients

Wegovy contains semaglutide, a GLP-1 receptor agonist that mimics the natural hormone GLP-1. Mounjaro, on the other hand, features tirzepatide, a dual-acting compound that targets both GLP-1 and GIP (glucose-dependent insulinotropic polypeptide) receptors. 

As you explore the differences between Mounjaro and Wegovy, considering how other medications stack up against Wegovy could also be beneficial. Gain further insights by reading our comparison of Zepbound vs. Wegovy, which highlights another competitive option in the medication market.

Dosing Schedules

Wegovy: Doses increase from 0.25mg to 2.4mg, each administered in separate pens.

Mounjaro: Begins at 2.5mg and goes up to 15mg, with each dose also provided in individual pens. This allows for a broader dosing range to tailor treatment more closely to the individual’s needs.

Side Effects


Wegovy 

Mounjaro

Digestive side effects

✔️

✔️

Dizziness

✔️


Fatigue

✔️


Hair loss

✔️


Headache

✔️


Stomach flu

✔️


Common cold

✔️


Injection site reactions

✔️

✔️

Mild increase in heart rate   

✔️

✔️

While evaluating the side effects of Mounjaro and Wegovy, you may also find it helpful to compare these with other drugs. 

For an in-depth look at how Wegovy compares to another popular option, check out our detailed guide on Contrave vs. Wegovy, which can help you understand the broader landscape of medications.

Cost and Accessibility

The cost of each medication will vary slightly depending on your insurance plan and the pharmacy you choose. The cost of each without insurance is approximately*: 

*Source1

*Source2

  • Mounjaro: CAD $380 – $480 per month, CAD $4500 – $5800 per year

  • Wegovy: CAD $430 – $500 per month, CAD $5000 – $6000 per year

Administration

Both Wegovy and Mounjaro are administered via subcutaneous injection.

This means they are injected under the skin, usually once a week.

It’s important to follow the dosing schedule prescribed by a healthcare provider to minimise side effects and maximise effectiveness.

Can You Take Wegovy and Mounjaro Together?

No, it’s not recommended to take both Wegovy and Mounjaro. Taking both could raise your risk of side effects, such as nausea, vomiting, and diarrhea.

Which is Better: Mounjaro or Wegovy?

Choosing between Mounjaro and Wegovy should be personalized based on individual health conditions, goals, and co-existing issues.

Mounjaro may be particularly suitable for adults with obesity who also have type 2 diabetes, due to its dual action on blood sugar and weight. Wegovy might be better for those primarily focused on weight loss, especially if other medications or strategies have not been effective. 

Ultimately, a licensed healthcare professional can provide the best advice, tailoring the treatment plan to the patient’s health situation and overall health goals.

If you’re considering switching from one medication to another, understanding the nuances of such changes is crucial. For those thinking about transitioning from Mounjaro to Wegovy, we provide a comprehensive overview in our article on switching from Mounjaro to Wegovy, which includes expert advice and considerations to ensure a smooth and effective switch.

Key Takeaways 

  • Mechanisms and Effectiveness: Mounjaro and Wegovy are both effective but work through different mechanisms. Mounjaro (tirzepatide) targets both GLP-1 and GIP receptors, while Wegovy (semaglutide) focuses solely on GLP-1 receptors.

  • Personalized Treatment: The choice between Mounjaro and Wegovy should be based on individual health conditions and goals.

Frequently Asked Questions

Can Ozempic or Mounjaro Be Used for Weight Loss in Individuals Without Diabetes?
Yes, both Ozempic (semaglutide) and Mounjaro (tirzepatide) can be used for weight loss in individuals without diabetes. Ozempic is approved for weight loss under the brand name Wegovy, while Mounjaro has shown promising results in weight loss even though it is primarily indicated for type 2 diabetes.

Can Insurance Cover the Cost of Ozempic and Mounjaro?
Yes, insurance can cover the cost of Ozempic and Mounjaro, but coverage varies by plan. It’s important to check with your insurance provider to determine specific coverage details and any out-of-pocket costs.

How Long Does It Take to See Results from Ozempic or Mounjaro?
Results from Ozempic or Mounjaro can typically be seen within a few weeks, with more improvements often observed after a few months of consistent use.

Modern care for women.

Jill Health is not a pharmacy or a drug manufacturer.

Questions? Contact us anytime on the site chat or at hello@jill.health

What We Treat

About Us

Shop

Modern care for women.

Jill Health is not a pharmacy or a drug manufacturer.

Questions? Contact us anytime on the site chat or at hello@jill.health

What We Treat

About Us

Shop