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Mounjaro (Tirzepatide): What You Need to Know

Mounjaro Information

Dominic Gallo avatar
Written by Dominic Gallo
Updated over 2 weeks ago

Mounjaro is a weekly injectable medication for weight loss that activates two key hormone receptors (GLP-1 and GIP) making it the first dual-acting treatment of its kind. It is currently prescribed off-label in Australia for obesity and metabolic health support.


Who is Mounjaro for?

  • Adults with BMI ≥30, or

  • Adults with BMI ≥27 with a weight-related condition (e.g. prediabetes, PCOS, insulin resistance)


How It Works

  • Reduces appetite and food cravings

  • Slows stomach emptying and promotes fullness

  • Enhances insulin sensitivity and regulates blood sugar

  • Targets GIP & GLP-1 pathways for enhanced effect over semaglutide (Wegovy/Ozempic)


Expected Weight Loss

  • Clinical studies show up to 22.5% total body weight loss


Dosing Schedule

Mounjaro (Tirzepatide) is titrated slowly to reduce side effects.
Everyone starts at the lowest dose (2.5mg) and are increased gradually.
Not everyone goes up to the next dose each month

Some people stay on the lowest dose for months before increasing!
Everybody responds to the medication differently.

The different doses are shown in the table below:

Month

Weekly Dose

1

2.5 mg

2

5.0 mg

3

7.5 mg

4

10 mg

5

12.5 mg

6+

15 mg (max dose)

This table is a guide only - not all patients increase their dose every month.

Not all patients need the highest dose - your Rumen medical professional will guide you.


Common Side Effects

  • Nausea or vomiting

  • Diarrhoea or constipation

  • Decreased appetite

  • Headache

Tip: High-fat or greasy foods can worsen nausea—opt for small, protein-rich meals.


Important Safety Info

  • Avoid if you or your family have a history of medullary thyroid cancer

  • Not to be used in combination with other GLP-1 medications

  • Not suitable for Type 1 diabetes


Why Rumen + Mounjaro Works

  • Expert supervision from GPs, dietitians & health coaches

  • Structured support around food, movement & mindset

  • Early identification of side effects and dose optimization

  • Realistic planning for long-term success beyond medication


Let’s Talk

Rumen provides a supportive, medical pathway for effective weight loss using the latest tools—like Mounjaro.

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