If you have been looking for new ways to lose weight, there is a good chance come across the names Mounjaro and Ozempic. Both are prescription medications specifically made to control type 2 diabetes. But very soon, these medicines became popular for another purpose: losing a good deal of weight.
Table of Contents
- What are Mounjaro and Ozempic?
- Here’s How They Work
- Mounjaro vs. Ozempic for Weight Loss
- Similarities and Differences Between Mounjaro and Ozempic
- Differences in How They Work: GIP + GLP-1 vs GLP-1
- Which Is More Effective for Weight Loss — Mounjaro or Ozempic?
- Mounjaro and Ozempic Side Effects: What’s Different?
- Which Patients Respond Better to Mounjaro?
- Cost Comparison: Mounjaro vs Ozempic
- The Bottom Line
Studies demonstrate striking results: a study discovered more than 80% of users of Mounjaro lost at least 5% of their body weight over a year, compared to approximately 66% of users of Ozempic. But what is best for you? Let us break it down simply and clearly.
What are Mounjaro and Ozempic?
Both Ozempic and Mounjaro are prescription drugs originally meant to control blood sugar in people with type 2 diabetes. They have become popular over time, however, for a different purpose, to reduce weight. Both of these drugs are classified as a type of drug known as a GLP-1 receptor agonist.
Simply put, they mimic certain hormones in the body naturally released following a meal. Indeed, millions have already been taking GLP-1 medicines such as Ozempic, Mounjaro, and Wegovy for weight loss or to control diabetes.
While Ozempic is approved only for type 2 diabetes (not weight loss), Mounjaro is approved for both diabetes management and weight loss treatment.
Here’s How They Work
They cause your pancreas to secrete more insulin when your blood sugar is too high and decrease another hormone called glucagon, which can raise blood sugar levels. They also reduce how fast food travels through your stomach, so you will be full for a longer time. This does more than keep diabetes in check; it also aids in stable weight loss.
Mounjaro vs. Ozempic for Weight Loss
Both Mounjaro and Ozempic are diabetes medicines, but have also received interest in regard to aiding in losing weight. They function by leaving you feeling full for a longer period of time, so you naturally eat less.
Ozempic copies a single hormone, whereas Mounjaro copies two so it will be a bit more effective at losing weight. Indeed, in a study, individuals taking a top dose of Mounjaro lost more than 20% of their body weight. On Ozempic, individuals tend to lose about 10%–15%, although some will lose a bit more.
Similarities and Differences Between Mounjaro and Ozempic
| Feature | Mounjaro | Ozempic |
|---|---|---|
| What they do | Lowers blood sugar, helps with weight loss, and may lower heart risks | Lowers blood sugar, helps with weight loss, reduces the risk of heart attack and stroke |
| How they work | Acts like two natural hormones (GIP + GLP-1) | Acts like one hormone (GLP-1) |
| Weight loss results | More effective; ~80% lose ≥5% of weight, ~36% lose ≥15% | Less effective; ~54% lose ≥5%, ~8% lose ≥15% |
| How to take it | Weekly injection; single-use pens (2.5–15 mg depending on prescription) | Weekly injection; pen contains 4 doses (0.25–2 mg) for a month |
| Side effects | Nausea, vomiting, stomach pain, diarrhea, constipation, indigestion (same as Ozempic) | Nausea, vomiting, stomach pain, diarrhea, constipation, indigestion (same as Mounjaro) |
Differences in How They Work: GIP + GLP-1 vs GLP-1
The big difference between Mounjaro and Ozempic is how many hormones they copy.
- Mounjaro targets both GIP and GLP-1 receptors. This dual-action can improve blood sugar control and boost weight loss.
- Ozempic only targets the GLP-1 receptor. It still works well for many people, but it doesn’t have the added effect of GIP.
Think of it like this: Mounjaro is like using two tools at once to get a job done—while Ozempic uses one. Both works, but Mounjaro might be more powerful in certain cases.
Which Is More Effective for Weight Loss — Mounjaro or Ozempic?
If you’re curious about which has a greater effect on shedding more pounds, the short answer is: Mounjaro appears to have an advantage.
A large study in 2024 examined more than 41,000 adults with type 2 diabetes and discovered:
- Around 82% of individuals on Mounjaro (Tirzepatide) lost a minimum of 5% of their body weight in one year.
- Around 67% of individuals taking Ozempic (Semaglutide) also reached that same benchmark for weight loss.
And so, on average, Mounjaro resulted in a reduction in weight of around 7% relative to Ozempic over 12 months, a very significant difference.
More than half of the individuals in each group discontinued the medications while in the study. Why might this be so? Side effects, expense, or even medication shortages are possibilities; it is not known.
And just so you’re aware: There are some other medications for losing weight available also, such as Mysimba, Orlistat (Xenical), Orlistat 60 mg, Saxenda, and Wegovy. But Mounjaro and Ozempic stand out in that they were initially designed to treat diabetes and were only discovered to have a benefit in losing weight along the way.
Mounjaro and Ozempic Side Effects: What’s Different?
Common Side Effects of Ozempic:
- Feeling sick (nausea)
- Vomiting
- Diarrhoea
- Constipation
- Tummy pain
Common Side Effects of Mounjaro:
- Nausea
- Diarrhoea
- Vomiting
- Reduced appetite
- Belly pain
- Constipation
- Indigestion
Which Patients Respond Better to Mounjaro?
Mounjaro is known to work best in people with type 2 diabetes who also have difficulty with weight. It targets two hormone pathways, GIP and GLP-1, and it might have a superior effect on blood sugar control and weight loss than what is achieved with GLP-1-alone medications such as Ozempic.
People who have attempted other treatments without much success might be more successful with Mounjaro. Results always vary. Some will experience more side effects than other people will, and some might notice very little difference.
Cost Comparison: Mounjaro vs Ozempic
Mounjaro generally starts at a lower monthly price, while Ozempic tends to cost more. It’s also worth noting that Ozempic is not approved for weight loss, unlike Mounjaro, which is used for both diabetes and weight management.
Prices vary based on your dose, insurance, and whether or not you qualify for drug companies’ savings programs. It is a good idea to contact your insurance or pharmacy benefits to know what it will really cost out of pocket.
The Bottom Line
Mounjaro and Ozempic are both very effective type 2 diabetes medications and help in weight loss. Mounjaro appears to have a bit more impact overall, particularly for weight loss, but it is also pricier. Both medications have stomach side effects and are not a cure-all.
At Transforyou, we connect you with doctors and partner pharmacies, making it simple to order medications online, get remote doctor approval, and have prescriptions filled quickly, all in one seamless process.
Disclaimer
The information in this article is intended for informational purposes and not as a substitute for professional medical advice. Always consult a physician or other qualified healthcare provider for specific questions about your health.
