Where should I inject Mounjaro?

The best places to inject Mounjaro are ones with the most fat.

These are: your tummy (although make sure to inject more than 5cm away from your belly button); the front of your thighs; or your upper arms. It’s important that you change injection sites regularly.

You can inject in the same area (e.g. tummy) but choose a different spot in that area each time.

How long does it take for Mounjaro to work?

Mounjaro should start working straight away, but it could take several weeks until it has a noticeable effect on regulating your blood sugar level and impacting your appetite and eating habits.

Can I switch from Wegovy (other brand of weight loss injection) to Mounjaro?

If you’re using Saxenda or Wegovy, you’ll need to wait 1 month before switching to Mounjaro.

This is called the 'washout' period, and gives the body time for the first drug to leave the system.

All patients using Mounjaro for the first time will start with 2.5mg.

Keep in mind, Mounjaro may not be suitable for you (even if you're using another weight loss medicine).

Our pharmacist will assess if it’s right for you during your consultation.

What are the different injection pens Wegovy or Mounjaro?

Wegovy and Mounjaro are both weekly injection pens and work in similar ways to aid weight loss.  We currently only prescribe Mounjaro.

Mounjaro has proven more effective in clinical trials, as it works on GLP-1 and GIP hormones, whereas Wegovy only works on GLP-1.

However, Mounjaro is a new medicine in the UK so we don’t have as much safety data on it compared to other medicines in the long term.

Deciding if or which medicine is right for you will depend on different factors, which we’ll assess during your consultation.

If you’re already on Wegovy (or Saxenda) and losing weight, we recommend you keep using it.

Keep in mind, weight plateaus are normal on your weight loss journey.

Does Mounjaro come with swabs?

The ‘instructions for use’ that come with the pen advice that you use swabs - we can supply these to you if needed from the pharmacy.

For further information on side-effects and managing side effects click here

For a week by week guide to what to expect when using Mounjaro CLICK HERE