MOUNJAROTIRZEPATIDE
with care that understands you
A once-weekly prescription injection containing tirzepatide.
We assess approved eligibility and your health
and plan treatment alongside lifestyle management.
GIP and GLP-1:
acting on two receptors.
Tirzepatide, the active ingredient in Mounjaro, is a dual agonist that acts on both receptors.
It helps regulate blood glucose by promoting insulin secretion and reducing glucagon secretion when blood glucose is high. It also acts on pathways involved in appetite and calorie intake.
- Ingredient
- Tirzepatide
- Form
- Single-use prefilled injection pen
- Category
- Prescription-only medicine
Blood glucose regulation
Involved in regulating insulin and glucagon secretion.
Food intake regulation
Involved in regulating appetite and calorie intake.
Weight management prescriptions
follow medical eligibility criteria.
These are the Korean approved criteria for chronic weight management in adults. Your clinician assesses both eligibility and whether treatment is appropriate for you.
Adults with obesity and an initial BMI of at least 30 kg/m²
and below 30
Adults with overweight and at least one weight-related condition, such as hypertension, dyslipidemia or type 2 diabetes
At your first visit:
four areas of your health.
Weight history & goals
Discuss recent weight changes, previous weight management experiences and treatment goals.
Health status
Review other health conditions, family history, any tests needed and current health measures.
Medicines & treatment history
Tell us about diabetes and weight management medicines, allergies and past adverse reactions.
Lifestyle & treatment plan
Discuss eating, activity and sleep patterns, injection technique and follow-up appointments.
Start with the initial dose.
Adjust step by step with your clinician.
Your clinician adjusts the dose based on treatment response and tolerability—how well you tolerate the medicine.
Start with a once-weekly subcutaneous injection. The 2.5 mg dose is for treatment initiation.
The approved regimen increases to and maintains 5 mg once weekly.
After at least 4 weeks on the current dose, it may be increased in 2.5 mg steps if needed. The maximum dose is 15 mg once weekly.
One pen, one injection.
Learn the steps before you inject.
The Mounjaro prefilled pen supplied in Korea is a single-use product: one pen delivers one injection. Injection sites include the abdomen, thigh and upper arm; rotate the site each time.
- Check the product firstCheck your prescribed strength, expiry date, product condition and storage history.
- Use the technique you were taughtRead the enclosed instructions and get guidance on injection sites and the order of pen operation.
- Do not reuse after injectionDo not share or reuse a pen. Dispose of it as instructed.
① Preparation ② Injection ③ Precautions
Three videos are available on Lilly Korea’s official guidance page.
Avoid the same spot each time.
Rotate your injection sites.
First ask your clinician to teach you the injection sites and technique. These illustrations come from the official single-use pen instructions.
Once weekly, on a regular schedule.
It can be used with or without food. Recording the injection date and site helps you check them at your next dose and appointment.
Ask your clinician whether you need help injecting into the upper arm and how to choose injection sites if you also use insulin.
Injection-site illustrations from Lilly’s official pen instructions. For the actual procedure, follow the instructions supplied with your product in Korea and your clinician’s training.
Storage temperature
is part of preparing for treatment.
Keep the product in its original carton to protect it from light, and do not let it freeze.
Normally keep refrigerated
Avoid direct exposure to freezing air. Keep it in the original carton to protect it from light.
When refrigeration is not possible
It may be stored at temperatures no higher than 30°C. Check both the storage conditions and the time kept out of refrigeration.
Do not use if it has been frozen
Avoid places with large temperature changes, such as inside a car. If storage conditions are uncertain, ask a pharmacist or the product information service.
Food and activity together:
sustainable weight management.
Chronic weight management includes dietary changes and physical activity. Discuss a plan that fits your current health and daily life.
Record what and how much you eat.
Alongside changes in appetite, record food intake, food types and any symptoms. If intake falls markedly or vomiting continues, review nutrition and hydration with your clinician.
Discuss activity you can keep up.
Plan activity around your fitness and joint health. Record everyday movement and your body’s response, rather than setting strenuous goals, to discuss at your next visit.
Bring four records
to your next visit.
Injection record
Note the injection date, prescribed dose and injection site used.
Changes in your body
Record weight changes, dizziness, digestive discomfort and changes in food intake.
Food & fluids
Tell us about days when eating was difficult, vomiting or diarrhea, and fluid intake.
Medicine changes
Tell us about new medicines, planned surgery or tests, and pregnancy plans.
What to check before treatment
and symptoms to watch for.
Tell your clinician before prescribing.
- ContraindicationsReport any personal or family history of medullary thyroid carcinoma, multiple endocrine neoplasia type 2 (MEN2), hypersensitivity to the ingredients or type 1 diabetes.
- Conditions & other medicinesTell us about any history of pancreatitis, severe gastrointestinal disease or diabetic retinopathy, and other medicines such as insulin.
- Pregnancy, breastfeeding & proceduresDiscuss pregnancy or plans to conceive, breastfeeding, and planned surgery or anesthesia with your clinician.
Watch for adverse reactions.
- Gastrointestinal symptomsNausea, diarrhea, vomiting, constipation and abdominal pain may occur. Seek advice if symptoms persist or make it difficult to eat or drink.
- Risk of low blood glucoseUsing it with insulin or a sulfonylurea may increase the risk of hypoglycemia. Your clinician decides whether other medicines need adjustment.
- When to seek prompt medical careSeek immediate medical help for serious symptoms such as severe or persistent abdominal pain, difficulty breathing, or swelling of the face or throat.
More questions about Mounjaro?
What if I miss a dose?
Lilly Korea advises taking a missed dose as soon as possible within 4 days (96 hours). If more than 4 days have passed, skip that dose and take the next one on your usual day. Ask your clinician or pharmacist if you are unsure of the schedule.
Can I change my injection day?
Lilly Korea advises that the day may be changed if there are at least 3 days (72 hours) between doses. Once a new day is chosen, keep a once-weekly schedule and check your prescription and instructions before making the change.
Can one pen be split across several injections?
The prefilled pen supplied in Korea is a single-use product for one injection per pen. Do not split doses yourself or reuse the pen.
Can I use it with other weight management medicines?
Tell your clinician about all medicines you currently use. They must assess whether combinations are appropriate and when to change medicines. Do not combine or switch them yourself.
Can I stop treatment once I lose weight?
Treatment goals, progress, adverse reactions and lifestyle management are assessed together when discussing continuation, changes or stopping. Decide whether to stop and what to do afterwards with your clinician.
How can I check the price and prescribed dose?
Whether the medicine is prescribed and at what dose are decided after consultation. Ask the clinic about costs and currently available strengths.
Start with a Mounjaro consultation.
Discuss your current condition and treatment history with our clinical team.
