How is Mounjaro different from Wegovy?
Mounjaro contains tirzepatide and acts on both GIP and GLP-1 receptors. Semaglutide in Wegovy acts on the GLP-1 receptor. Both are once-weekly subcutaneous injections used with nutrition and activity planning.
A different mechanism does not mean one medicine is better for everyone. Selection considers health status, previous treatment response, and adverse effects.
When may Mounjaro be considered?
Adults may generally be considered after medical assessment if their BMI is 30 or higher, or 27 or higher with a weight-related health condition.
Weight and health conditions
Weight-related conditions such as hypertension and dyslipidemia are reviewed together with BMI.
Appetite control
The assessment considers whether lifestyle changes alone have made appetite control and weight maintenance difficult.
Medical history and medicines
Gastrointestinal symptoms, pancreatic or gallbladder disease, and diabetes medicines are reviewed.
When use should be avoided
This includes pregnancy or breastfeeding and a personal or family history of medullary thyroid carcinoma or MEN2.
How do Mounjaro and Wegovy compare?
Both are once-weekly weight-management injections, but their ingredients, receptor activity, and starting and maximum doses differ. Your health and response matter more than another person's weight-loss result.
| Comparison criteria | Mounjaro | Wegovy |
|---|---|---|
| Active ingredient | MounjaroTirzepatide | WegovySemaglutide |
| Receptor activity | MounjaroGIP·GLP-1 | WegovyGLP-1 |
| Starting capacity | Mounjaro2.5mg | Wegovy0.25mg |
| Maximum capacity | Mounjaro15mg | Wegovy2.4mg |
| Shared feature | MounjaroOnce-weekly subcutaneous injection | WegovyOnce-weekly subcutaneous injection |
How is Mounjaro started?
Treatment starts at 2.5 mg and increases gradually while response is monitored. The goal is not rapid escalation but balancing effectiveness and gastrointestinal tolerability.
- STEP 01
Eligibility assessment
BMI, health conditions, medical history, and current medicines are reviewed.
- STEP 02
Start at 2.5 mg
Inject subcutaneously once a week on the same day.
- STEP 03
Assess the initial response
Record appetite changes and symptoms such as nausea or constipation.
- STEP 04
Step-by-step increase
Adjust the dose based on progress and clinical need.
- STEP 05
Maintenance plan
Review nutrition, activity, and sleep plans together.
How is weight change assessed?
Assessment includes food intake, sustainable activity, and adverse effects as well as weight and waist circumference. The 24-week case on the clinic page describes one person and does not predict the same result for everyone.
Because weight may increase again after stopping, prepare a maintenance strategy during treatment.
What side effects and precautions should I know?
Gastrointestinal symptoms such as nausea, vomiting, constipation, abdominal pain, and indigestion may occur. Report repeated severe symptoms, dehydration, or persistent abdominal pain.
Meal adjustment
Eat small portions slowly and reduce overeating and high-fat meals.
Hydration status
If vomiting or diarrhea continues, check for signs of dehydration.
Concomitant medicines
Tell the clinician about diabetes medicines and any other weight-management drugs.
A sign that medical treatment is needed
Seek care for severe abdominal pain, repeated vomiting, breathing difficulty, or a systemic allergic reaction.
Do not increase the dose or switch medicines on your own; follow the prescribing clinician's plan.
What should I check before the cost and consultation?
The clinic's published non-covered fee schedule lists Mounjaro at KRW 385,000 to 790,000 depending on dose. Total cost varies with dose and duration.
Cost by dose
Published prices range from KRW 385,000 for 2.5 mg to KRW 790,000 for 15 mg.
Prescription and care scope
Check whether the fee includes the consultation and follow-up assessment.
Switching plan
If you use another weight-management medicine, ask how to stop or switch safely.
Lifestyle plan
Set sustainable nutrition and activity goals to follow alongside medication.
Non-covered fees may change, so check the latest published schedule and consultation estimate.