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What should you do if your next dose of Mounjaro is out of stock?
It’s really important to stick to a regular dosing schedule when using Mounjaro, to limit your risk of side effects and get the most from your treatment. But current supply issues can make it difficult to get your treatment when you need it. If stock shortages are preventing you from sticking to a regular Mounjaro dosing schedule, speak to your clinician – there are some options you can try.
Medically reviewed by
Craig Marsh, Independent Prescriber
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- It’s advised to stay on your current dose of Mounjaro if your next dose isn’t in stock.
- If your current dose is also out of stock, you might be asked to lower your dose to stick to a regular schedule.
- You can swap to a different weight loss treatment with more reliable stock, but you’ll have to start at the lowest dose again.
- If you miss three doses in a row, you’ll need to lower your dose when you start Mounjaro again.
What is the Mounjaro dose schedule?
Your Mounjaro dosing schedule is one injection a week, taken on the same day every week. You’ll start on the lowest dose (2.5 mg), and then move up to 5 mg after four weeks. After at least four weeks on the 5 mg dose, you’ll have a review with your clinician. If you’re not struggling with side effects and they think you’d benefit from a higher dose, your clinician may increase your dosage further (in 2.5 mg increments). You’ll take this new dosage for at least four weeks, and then you’ll have another review. You’ll keep increasing your dose like this until you reach a dosage that helps with your weight loss and limits unpleasant side effects.
Keeping up with your Mounjaro dose schedule is really important, as missing a dose can cause unpleasant digestive side effects. If you miss three doses in a row, you’ll have to lower your dose when you start treatment again. But current stock issues mean sticking to your Mounjaro dosing schedule isn’t always in your control.
If you need your next dose for Mounjaro, but it isn’t available due to stock issues, there are some alternative options you can try. If you’re moving up to a higher dose that isn’t in stock, but the dose you’re currently using is in stock, it’s typically best to remain on the dose you’re on. Likewise, if your current dose is out of stock but there’s a lower dose available, moving down to a lower dose temporarily is better than missing your treatment. If you do miss three or more doses of Mounjaro, you’ll need to lower your dose when you start treatment again.
If there are no doses of Mounjaro available, speak to your clinician about alternative weight loss treatment options. They might be able to recommend an alternative with better availability, so you can get the treatment you need without any gaps or dosage concerns.
What do you do if you miss a dose of Mounjaro?
If you’ve missed your dose of Mounjaro and it’s been four days or less since you should have taken it, just use it as soon as you remember. Then you can take your next dose when you normally would. But if it’s been more than four days, skip the dose you’ve missed and take your next dose as usual on your normal day.
Never take double the amount of Mounjaro you usually would to make up for missing a dose – you need to wait a minimum of three days between doses. If you’ve missed three or more doses of Mounjaro in a row – speak to your clinician before taking Mounjaro again; they may have to lower your dosage when you restart treatment.
There are some gastrointestinal side effects that can come with a missing Mounjaro dose. If you’re unable to get your next dose of treatment, speak to your clinician about alternative Mounjaro options to avoid any adverse effects. They might be able to prescribe a different weight loss medication that’s easier to get hold of.
What are the side effects of missing a dose of Mounjaro?
While there aren’t any ‘official’ Mounjaro missed dose side effects, missing a dose could cause some digestive discomfort. The most common gastrointestinal side effects of Mounjaro are diarrhoea, nausea, vomiting, indigestion, constipation, and stomach pain. These side effects can make it more difficult to stick to your weight loss journey, so making sure you take your treatment on time is really important.
What are the alternatives to Mounjaro if it is out of stock?
There are alternatives to Mounjaro that might be more available,, so you can use your weight loss medication without any interruptions in treatment. Wegovy is a weekly injectable weight loss medication that’s really similar to Mounjaro, and Saxenda is a slightly different weight loss injection that you need to use every day.
While they have slightly different active ingredients than Mounjaro, they work in really similar ways to reduce your appetite and help with weight loss. But there can be supply issues with these other weight loss injections too, so it’s best to check which one has the best availability where you’re getting it from.
These substitutes to Mounjaro aren’t directly interchangeable, with it or each other; if you switch treatments you’ll need to wait for four weeks after your last Mounjaro injection and then start from the lowest dose of your new medication and work your way back up again. But it can be really worthwhile to make the change if it means you can get your treatment more reliably.
Being consistent is one of the most important aspects of using weight loss medication – whether that involves sticking to a healthy diet, exercising more, or taking your medication on time without missing doses. Making the switch to a treatment that’s more accessible lets you get the most out of your treatment, and can help you achieve your weight loss goals with fewer side effects and stumbling blocks.
Reference Popover #ref1
Treated trusted source
Eli Lilly and company Limited. (2024).
Package Leaflet: Information for the patient. Mounjaro 2.5 mg KwikPen solution for injection in pre-filled pen. EMC. (Accessed 11/03/2024).
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