What to Expect on 2.5mg
Week 1-4
Take 2.5mg once weekly. Your body adjusts to the medication. Mild side effects like nausea may occur but typically improve.
Weight Loss
Modest weight loss of 1-3kg typical during the starting phase. Appetite reduction begins. More significant results come at higher doses.
After 4 Weeks
Increase to 5mg dose as directed by your healthcare provider. Continue with once-weekly injections on the same day each week.
2.5mg Dose FAQs
How long do I stay on 2.5mg?
You should use the 2.5mg dose for exactly 4 weeks (4 once-weekly injections). After this, you'll increase to 5mg. The 2.5mg dose is not meant for long-term use.
Can I skip 2.5mg and start on 5mg?
No. Always start with 2.5mg regardless of your weight or previous medication experience. Starting at higher doses significantly increases the risk of side effects without improving results.
How many pens do I need for 4 weeks?
You need 1 pen only. Each 2.5mg pen contains 4 doses (injections), which equals 4 weeks of treatment. This is often confused - you do NOT need "4 pens."
Will I lose weight on 2.5mg?
Most people experience modest weight loss (1-3kg) during the 2.5mg phase. However, this is primarily a tolerance-building dose. More significant weight loss occurs at 5mg and higher.
What if I experience side effects?
Mild nausea, fatigue, or digestive issues are common and usually improve within 2-3 weeks. Stay hydrated, eat smaller meals, and contact your prescriber if symptoms are severe or persistent.
Your Mounjaro Journey
Each dose increase happens every 4 weeks under medical supervision
Ready to Start Your Treatment?
Compare prices above, choose a verified UK pharmacy, and start your Mounjaro journey with the 2.5mg dose.
Medical Disclaimer: This information is for educational purposes only. Always follow your healthcare provider's dosing instructions. The 2.5mg dose should be used for 4 weeks before increasing to 5mg. Never adjust your dose without medical supervision. Prices shown are for comparison purposes and may vary.