Description
Mounjaro: The Most Effective Doctor-Prescribed Weight Loss Treatment in Europe
Mounjaro (active ingredient: tirzepatide) is a once-weekly injectable medication that produces the highest average weight loss of any prescription treatment currently licensed in Europe. Clinical trials published in The New England Journal of Medicine show an average weight reduction of 20.9% over 72 weeks at the maximum 15 mg maintenance dose — significantly higher than older GLP-1 medications. At EU Slim Store, we make Mounjaro accessible through a free online consultation with a Dutch BIG-registered doctor and supply from a fully IGJ-registered pharmacy in the Netherlands.
How Mounjaro Works — A Dual-Hormone Breakthrough
Mounjaro is the first weight loss medication to mimic two natural gut hormones simultaneously: GLP-1 (glucagon-like peptide 1) and GIP (glucose-dependent insulinotropic polypeptide). Older medications like Wegovy and Ozempic mimic only GLP-1. The dual action is why Mounjaro is so effective.
Once injected weekly, tirzepatide:
- Slows the rate at which food empties from your stomach, keeping you fuller for longer
- Reduces appetite signals in the brain’s hunger and reward centres
- Improves how your body responds to insulin, stabilising blood sugar levels
- Reduces cravings — particularly for high-fat and high-sugar foods
Most patients notice a dramatic reduction in hunger within the first one to two weeks. Visible weight loss typically begins around weeks three to four, with significant changes (10%+ of starting body weight) achieved over four to six months at appropriate maintenance doses.
Who Is Mounjaro For?
Mounjaro is appropriate for adults seeking sustained weight loss under medical supervision. In line with EU clinical guidelines, our doctors will typically prescribe Mounjaro when:
- Your BMI is 30 or above, or
- Your BMI is 27 or above and you have at least one weight-related condition such as type 2 diabetes, high blood pressure, high cholesterol, sleep apnoea, cardiovascular disease, or non-alcoholic fatty liver disease
Final eligibility is always determined by your reviewing doctor based on a full medical history, not just BMI alone.
Mounjaro Dosing Schedule — Gradual Titration for Best Tolerance
All patients begin Mounjaro at the starter dose of 2.5 mg once weekly for the first four weeks. This intentionally low starting dose lets your body adjust and minimises side effects. After the initial period, your doctor will guide a gradual increase every four weeks based on how you tolerate the medication and your response:
- Weeks 1–4: 2.5 mg (starter dose, not a therapeutic dose)
- Weeks 5–8: 5 mg
- Weeks 9–12: 7.5 mg
- Weeks 13–16: 10 mg
- Weeks 17–20: 12.5 mg
- Week 21+: 15 mg (maximum maintenance dose)
Most patients reach a comfortable maintenance dose between 5 mg and 15 mg. Your reviewing doctor will help determine the right long-term dose for you based on weight loss progress and side effect tolerance.
How to Inject Mounjaro
Mounjaro comes as a pre-filled single-use injector pen with a very thin needle that’s barely felt. Each pen contains one weekly dose. You inject under the skin (subcutaneously) in your abdomen, thigh, or upper arm — the same day of the week, with or without food. Switch injection sites each week to avoid skin irritation.
A nurse provides a video walkthrough with your first delivery, and you can message your prescribing doctor anytime with questions through our secure patient portal.
Common and Serious Side Effects
The most common side effects are gastrointestinal and typically mild:
- Nausea (~25% of patients, usually in first 2–4 weeks)
- Diarrhoea or constipation
- Reduced appetite
- Fatigue or mild headache
- Mild injection site reactions
Most side effects fade within two to four weeks as your body adjusts to each new dose. Drinking plenty of water, eating smaller protein-rich meals, and avoiding fatty or spicy food helps significantly.
Serious side effects are rare but require immediate medical attention. Contact your doctor or seek urgent care if you experience severe abdominal pain (possible pancreatitis), signs of gallbladder issues, persistent vomiting, vision changes, or signs of an allergic reaction such as facial swelling or difficulty breathing. Mounjaro is contraindicated in patients with a personal or family history of medullary thyroid cancer (MTC) or multiple endocrine neoplasia syndrome type 2 (MEN 2).
Mounjaro vs. Other GLP-1 Medications
| Treatment | Active ingredient | Average weight loss | Frequency |
|---|---|---|---|
| Mounjaro | Tirzepatide | 20.9% | Weekly |
| Wegovy | Semaglutide | 14.9% | Weekly |
| Ozempic | Semaglutide | 10–15% | Weekly |
| Saxenda | Liraglutide | 8–12% | Daily |
Mounjaro produces the strongest weight loss results because of its dual GLP-1 + GIP mechanism. Your doctor will discuss whether Mounjaro or an alternative is right for you based on your medical history, response to previous treatments, and goals.
How to Buy Mounjaro Online from EU Slim Store
The process is fully online, secure, and takes only minutes:
- Complete the free consultation form — five minutes of medical questions (BMI, history, current medications, eligibility)
- A Dutch BIG-registered doctor reviews your case within 24 hours
- If appropriate, your doctor issues a prescription and answers any questions you have
- Our IGJ-registered Dutch pharmacy dispenses your treatment in original manufacturer packaging
- PostNL delivery in 3–5 working days in temperature-controlled, discreet packaging
No need to visit a clinic. No waiting rooms. No paperwork. Just a confidential medical consultation with a licensed doctor and pharmacy-grade treatment delivered to your door.
Storage and Handling
Store unopened Mounjaro pens in the refrigerator at 2–8 °C in the original packaging, away from light. Do not freeze. Once in use, a pen can be kept at room temperature (below 30 °C) for up to 21 days. Always check the liquid before injecting — it should be clear and colourless. Do not use if cloudy or containing particles.
Pricing and What’s Included
Our Mounjaro pricing is transparent and all-inclusive: medication, doctor consultation, pharmacy dispensing, and PostNL delivery. No hidden fees. No surprise charges. Monthly cost starts at €148 for the starter dose, scaling with your maintenance dose level. Reorder when ready — your doctor’s ongoing monitoring is included.
Ready to Start?
Take the free five-minute eligibility consultation now. A Dutch BIG-registered doctor will review your case and respond within 24 hours. You’ll only pay if your doctor approves treatment — there’s no obligation to proceed.
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