Mounjaro 2.5mg

Staying on Mounjaro 2.5mg long-term is not typically recommended for optimal weight loss. Clinical guidelines suggest increasing your dose after four weeks to help you get the most out of your treatment, but you can discuss this with your clinician. The usual minimum treatment dose is 5mg.

The 2.5mg dose is the standard starting point for everyone, regardless of weight or health status. It’s designed to help your body adjust gradually and minimise side effects in the first month.

Most people move up to 5mg after four weeks. However, if you experience side effects on 2.5mg, you may choose to stay on it a little longer to give your body more time to settle.

While 2.5mg helps with early tolerance, it’s not intended as a long-term dose for appetite suppression during the active weight loss phase. To continue progressing, most people will need to increase beyond this dose.

Mounjaro 2.5mg is primarily a starting dose to help your body adjust to the medication. For weight loss, research shows an average of 2.5% body weight reduction during the first month. For diabetes, it begins improving blood glucose control, though full benefits typically emerge at higher doses.

Mounjaro starts at a low dose to help your body adjust with minimal side effects. While some people notice reduced appetite or slight weight loss within the first 2–3 weeks, the 2.5mg dose is not intended to deliver strong appetite suppression. It’s primarily a starting point to ease your body into treatment.

Appetite changes will become more noticeable as the dose increases. Everyone responds differently, so your experience may vary—but don’t worry if the initial effects feel subtle. What matters most is finding the right dose over time to support lasting results.

If you're not losing weight on Mounjaro 2.5mg or you think it isn't working, remember that 2.5mg is the starting dose, so you’re unlikely to see the full effects at this stage.

Here are a few other reasons why you might not be losing weight:

• The dose is too low – Clinical studies show that people lose more weight when taking higher doses.
• Time needed – Weight loss varies between people. Some see gradual changes that become more noticeable after dose increases.
• Diet & lifestyle factors – Mounjaro works best when combined with a healthy diet and regular physical activity. Adjusting your food choices and doing more exercise might help.
• Metabolic differences – Factors like insulin resistance, hormonal balance and genetics can all affect weight loss progress.
• Body adjustment phase – Early on, your body is adapting to the medication, which may delay visible weight changes.

If you’re concerned about slow progress, speak to your clinician to discuss increasing your dose, or speak with your treatment specialist for advice on how to adjust your lifestyle.

It’s completely normal to still feel hungry while taking Mounjaro 2.5mg. This lower dose allows your body to get used to the medication, but you might benefit from a higher dose.

Why you may still feel hungry:

• Time to adjust: It takes time for the medication’s appetite-suppressing effects to take hold, and some people may need a few weeks to notice a significant difference.
• Individual response: Everyone reacts differently to treatment, and while some feel less hungry early on, others may need a dose adjustment to experience the full benefits.

Next steps: As you continue with treatment, you’ll have the opportunity to increase your dose, which typically provides stronger appetite control.

In the meantime: To maximise results, it's important to engage in lifestyle measures while you’re taking Mounjaro, including:

• Prioritising high-protein & fibre-rich meals to keep you fuller for longer
• Staying hydrated, as thirst can sometimes be mistaken for hunger
• Eating mindfully, focusing on portion sizes and hunger cues
• Incorporating movement & activity to support metabolism and overall well-being

If you’re still hungry after increasing your dose, or if you have any concerns, please contact our clinical team – we’re here to support you throughout your journey.

No, Mounjaro 2.5 mg should not be taken twice a week. Taking it more frequently than prescribed could increase the risk of side effects without improving effectiveness.

Mounjaro 2.5mg comes in a 3 mL pre-filled injection pen. Each weekly dose delivers 2.5mg of tirzepatide in 0.6 mL of solution. The pen also contains a small amount of excess liquid to allow for flow checks and accurate dosing.

There’s no need to measure the millilitres yourself. The pen is designed to give you exactly one dose when you twist the base to the “1” and follow the instructions. You can review the full step-by-step guide for using your pen here.

The Mounjaro 2.5mg pen contains four doses (one dose per week), so it should last you four weeks. There are 60 clicks in a full dose. But there’s no need to count them! Dialling your pen to “1” loads one 2.5mg dose.

While initially approved for diabetes, Mounjaro is now licensed and widely prescribed for weight management. The 2.5mg dose is used for both conditions as a starting point, with clinical evidence supporting its effectiveness for weight loss in non-diabetic patients.

Yes, the SURMOUNT-1 trial published in the New England Journal of Medicine showed participants lost approximately 2.5% of body weight during the first month on 2.5mg. Greater losses occurred as doses increased in subsequent months.

After completing four weeks on 2.5mg, your dose will typically increase to 5mg as part of the standard treatment schedule. However, if you experience strong side effects on 2.5mg, it’s worth speaking to your clinician. In some cases, it may be better to remain on the starting dose for a little longer to give your body more time to adjust before stepping up.

The difference between 2.5mg and 5mg Mounjaro:

• 2.5mg is the starting dose of Mounjaro. It is taken once a week for at least four weeks before increasing to a higher dose.
• 5mg is the first step-up dose of Mounjaro, offering stronger appetite suppression and metabolic effects. It should also be injected once weekly and must be taken for at least four weeks before increasing again.

No, you cannot go directly from 2.5mg to 7.5mg on Mounjaro.

Mounjaro follows a step-up dosing schedule to help your body adjust and reduce the risk of side effects. The recommended progression is:

• Start with 2.5mg (for at least 4 weeks)
• Increase to 5mg (for at least 4 weeks)
• Increase to 7.5mg, if tolerated and needed

Skipping doses or jumping directly from 2.5mg to 7.5mg could lead to stronger side effects.

Always follow the recommended titration schedule as advised by your clinician.