What is the starting dose of Mounjaro?

The starting dose of Mounjaro is always 2.5mg, once a week, for 4 weeks. This is the same whether you’re starting treatment for the first time, restarting after a break from Mounjaro, or switching from another weight loss injection. As each pen contains 4 doses, your first pen will last for 4 weeks.

You should only increase your dose if your doctor recommends it, or if you’re following the dose schedule and it’s time for your next dose increase. Increasing your dose faster than every 4 weeks or skipping doses on the dosing schedule could increase your risk of side effects and possibly put your health at risk.

What is titration?

The process of slowly increasing medication doses is called ‘titration’ and can happen over several days, weeks, or months. Mounjaro is on a titrating dose schedule to help your body get used to treatment while reducing the chances of getting side effects.

Our doctors are available to monitor how the medication affects you, to make sure you’re getting the most out of your new weight loss treatment with minimal discomfort.

Mounjaro dosage schedule

Mounjaro doses are titrated in steps of 2.5mg, with at least 4 weeks between dose changes. This means every 4 weeks, you’ll increase your dose by 2.5mg until you reach your maintenance dose.

What is the maintenance dose of Mounjaro?

Mounjaro has several maintenance doses: 5mg, 10mg, or 15mg. The maintenance dose is the highest dose of Mounjaro you’ll take, and it’s the dose you’ll stay on for the rest of your treatment. The maintenance dose you keep depends on how you respond to the treatment, such as whether you have any side effects and your weight loss results.

The maximum maintenance dose is 15 mg, and you can’t take more than this every week. If you’re on a lower maintenance dose and decide you want to increase to a higher dose, you can do this at any time, as long as you don’t have any serious side effects and you’ve waited at least 4 weeks before increasing the dose.

How many Mounjaro pens will I need?

The number of Mounjaro pens you will need depends on how long you continue to take Mounjaro to achieve your weight loss goals. Each pen lasts for 4 weeks and contains 4 doses. You’ll usually stick to each dose for 4 weeks before increasing unless you stay on a lower dose for longer. If you follow the dosage schedule with no issues, and want to increase to the maximum maintenance dose, this is how many pens you’ll need:

Weeks Dosage Number of Pens
1 – 4 2.5mg 1
5 – 8 5 mg 1
9 – 12 7.5mg 1
13 – 16 10mg 1
17 – 20 12.5mg 1
21+ 15mg 1+

Can I split my Mounjaro dose?

No, you shouldn’t split your dose under any circumstances. Splitting a dose means you don’t get the right amount of your medication, so it’s not as effective. Doing this often could make it take longer to reach your weight loss goals and could put you at risk of side effects. It’s also difficult to split a dose from a pre-dosed injectable pen and you should never keep the needle in a pen to use for later.

You should only ever take your treatment as prescribed and directed by your doctor.

How long can I take Mounjaro for?

You can take Mounjaro for as long as your doctor prescribes it. This is usually until you’ve reached your weight loss goal. Studies have shown people can lose up to 22.5% of their starting weight while taking the highest maintenance dose of 15 mg after 72 weeks.

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