Mounjaro S Program
- Jun 4
- 3 min read
Updated: Jun 5
Mounjaro Weight Loss Injection Pen
What is Mounjaro?
Mounjaro is a weight loss injection pen containing the active ingredient Tirzepatide, developed by Eli Lilly and Company, USA. It is a new-generation injectable medication approved by the U.S. FDA for the treatment of Type 2 Diabetes and weight management.

How Does Mounjaro Work?
Mounjaro contains Tirzepatide, a Dual Agonist that mimics two natural hormones in the body simultaneously: GLP-1 and GIP. This dual-action mechanism helps suppress appetite while enhancing fat metabolism.
GLP-1 Effects
Reduces appetite
Helps you feel full faster and longer
Slows gastric emptying
Supports blood sugar control
GIP Effects
Stimulates insulin release when blood sugar levels are high
Enhances fat metabolism
Reduces the risk of hypoglycemia (low blood sugar)
By combining these two mechanisms, Mounjaro helps control hunger and burn fat at the same time.
Benefits of Mounjaro
Control appetite and reduce cravings
Make portion control easier without excessive restriction
Reduce snacking between meals
Promote longer-lasting fullness
Support healthy insulin response
Boost fat metabolism
Lower cardiovascular risk in overweight individuals
Clinical studies show an average weight reduction of approximately 15–22% of total body weight.
How Much Weight Can You Lose with Mounjaro?
Mounjaro is clinically proven to support safe and effective weight loss, especially for individuals with obesity or those who have struggled to lose weight through traditional methods.
Expected Results
First month: Average weight loss of 3–5 kg with weekly injections starting at 2.5 mg
Within 18 months: Average weight loss of 15–22% of body weight
Results may vary depending on diet, exercise, lifestyle, and individual body response.
Is Mounjaro Safe?
Mounjaro has been approved by the U.S. FDA for the treatment of Type 2 Diabetes and has strong clinical evidence supporting its safety and effectiveness for weight management when used under professional supervision.
Who is Mounjaro Suitable For?
Individuals with BMI ≥ 30 kg/m² (obesity)
Individuals with BMI ≥ 27 kg/m² along with medical conditions such as Type 2 Diabetes, hypertension, or high cholesterol
Those who have not achieved success with conventional weight loss methods
Individuals with prediabetes, as research suggests Tirzepatide may reduce the risk of developing Type 2 Diabetes by up to 94% within 3 years
Precautions and Contraindications
Individuals with a personal or family history of Medullary Thyroid Cancer
Patients with Multiple Endocrine Neoplasia Syndrome Type 2 (MEN2)
Individuals with severe pancreatitis or advanced kidney disease
Patients allergic to Tirzepatide
Pregnant or breastfeeding women
Children under 12 years old
How to Use Mounjaro
Inject once weekly on the same day each week
Starting dose: 2.5 mg weekly for the first 4 weeks
Dosage may be gradually adjusted according to the treatment plan
Missed Dose
If missed within 4 days: inject as soon as possible
If more than 4 days have passed: skip the missed dose and continue with the next scheduled injection
Recommended Injection Areas
Abdomen
Thigh
Back of upper arm
Rotate injection sites regularly to minimize irritation.
Post-Treatment Care
Do not increase the dose too quickly
Never inject more than prescribed or inject twice within the same week
Drink at least 1.5–2 liters of water daily
Monitor for low blood sugar, especially if using other diabetes medications
Possible Side Effects
Most side effects occur during the initial adjustment period and usually improve within 2–4 weeks.
Common side effects include:
Nausea
Vomiting
Mild constipation or diarrhea
Bloating
Early fullness
Dizziness
Injection site irritation
If severe symptoms occur, such as persistent vomiting or severe abdominal pain, discontinue use and seek medical attention immediately.
Will the Weight Return After Stopping Mounjaro?
Weight regain may occur if previous eating habits return. Gradual dose reduction combined with long-term lifestyle modification is recommended to help prevent the yo-yo effect.
Mounjaro Pricing at STC Clinic
2.5 mg Starting Dose
Starting from 1,990 THB per dose
Package Options
4-session package: 6,760 THB (Average 1,690 THB per dose)
8-session package: 12,720 THB (Average 1,590 THB per dose)
Prices may vary depending on dosage requirements and individual health conditions. Contact STC Clinic for a free consultation and personalized treatment plan.



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