Top 5 Myths About Switching From Mounjaro to Wegovy

Switching from Mounjaro to Wegovy is becoming increasingly common as patients look for safe and effective long-term weight management options. Yet, the process often raises questions. Do you need a break between treatments? Are Wegovy side effects worse? Will your weight loss stall?

With so much conflicting information online, it’s easy to feel uncertain. The truth is that switching doesn’t have to mean setbacks, but it’s important to separate facts from myths. In this blog, we’ll break down the five most common misconceptions about moving from Mounjaro to Wegovy and share what you really need to know before making the change.

Why Do People Switch from Mounjaro to Wegovy?

People switch from Mounjaro to Wegovy for different reasons. In some cases, it is about availability and supply, as Wegovy is easier to access in the UK, including through the NHS for those who qualify. For others, cost and convenience make Wegovy the more practical option.

Sometimes the decision is guided by a clinician who may recommend the switch to ensure treatment continues smoothly and progress is maintained. At The Care Pharmacy, our team supports patients through this process by offering clear guidance, reliable supply, and ongoing advice to help manage the transition confidently. Each person’s situation is different, but the goal is always the same, finding the treatment that best supports long-term weight management.

Myth 1: You always need a washout period before starting Wegovy

A common belief is that you must stop treatment for several weeks before moving from Mounjaro to Wegovy. This is not always the case.

Whether a break is needed depends on your individual situation, such as how you have responded to treatment so far and if you have experienced side effects. In many cases, clinicians recommend switching directly without a gap to avoid interrupting progress.

Factors your clinician may consider before advising a break include:

• How well you tolerated your previous dose of Mounjaro

• Whether you experienced ongoing side effects

• Your overall health and treatment goals

The key is to follow a plan made with your healthcare professional rather than relying on general advice. A personalised approach ensures the switch is both safe and effective.

Myth 2: Wegovy causes harsher side effects

Many people worry that switching to Wegovy will bring stronger or more uncomfortable side effects compared to Mounjaro. The most common concerns are nausea, bloating, and stomach upset.

In reality, both medicines can cause similar side effects because they work in a comparable way. These symptoms are usually temporary and tend to improve as your body adjusts. Managing the switch carefully can also make a big difference.

Ways to reduce the chance of stronger side effects include:

• Starting on a lower dose of Wegovy and gradually increasing

• Following your clinician’s advice on how to pace the transition

• Paying attention to diet and hydration which can ease digestive discomfort

While side effects are possible, they are not necessarily worse with Wegovy. Most patients find that with the right support and dosing plan, symptoms are manageable and often short-lived. And importantly, switching does not mean starting from scratch. With consistency, your progress continues even if your medication changes.

Myth 3: Wegovy isn’t as effective for weight loss

Some people believe that switching to Wegovy will slow down or stop their weight loss, especially if they have already made progress on Mounjaro. This is a common misconception.

Both Mounjaro and Wegovy are supported by clinical research showing that they help with significant weight reduction when combined with healthy lifestyle changes. Differences in results often come from individual factors, not the medicine itself.

What really influences ongoing weight loss includes:

• How consistently you follow your treatment plan

• Maintaining healthy eating and physical activity habits

• Regular support and guidance from your healthcare provider

It is also important to remember that progress may look different from one person to another. Some may lose weight at a slower pace after switching, while others continue steadily. The key is staying consistent with the habits and plan that support long-term success.

Myth 4: Cost is the only reason people switch

It is often assumed that people move from Mounjaro to Wegovy only because of price. While cost can be a factor, it is not the only reason behind the switch.

Many patients consider other aspects that affect long-term treatment, such as:

1. Availability – Wegovy is more widely accessible in the UK, including through the NHS for eligible patients

2. Consistency – reliable supply helps prevent interruptions in treatment

3. Convenience – for some, Wegovy fits better into their overall care plan

Every patient’s decision is different, and cost is just one part of the picture. For many, switching is about finding a treatment that is sustainable, accessible, and best suited to their health goals.

Myth 5: Switching erases all progress

A common worry is that moving from Mounjaro to Wegovy means starting over and losing all the progress made so far. This is not the case.

The healthy routines and lifestyle changes you have already built continue to support your results, no matter which medication you use. Weight may fluctuate slightly during the transition, but this is usually temporary.

What helps protect your progress includes:

• Staying consistent with healthy eating and activity habits

• Following the treatment plan set by your clinician

• Seeking regular support and monitoring to stay on track

Switching treatments does not reset your journey. With consistency and guidance, most patients continue moving forward rather than starting again.

How does The Care Pharmacy support you?

Switching from Mounjaro to Wegovy can feel overwhelming, but The Care Pharmacy is here to make the process easier. Our pharmacists provide personalised advice based on your treatment history and current health, helping you move across safely and confidently.

We also offer ongoing support with guidance on managing side effects, staying consistent with your plan, and making the most of your treatment. With reliable supply and convenient access, we work to prevent gaps in your medication so your progress is not interrupted. By combining professional care with trusted service,

The Care Pharmacy ensures you feel supported at every stage of your weight management journey with Wegovy.

FAQs

Can you switch from Wegovy to Mounjaro?

Yes, it is possible to switch from Wegovy to Mounjaro, but the process should always be guided by a clinician. The decision depends on how you have responded to Wegovy, your treatment goals, and any side effects you may have experienced.

Does Wegovy work after Mounjaro?

Yes, Wegovy can still be effective after Mounjaro. While some people notice small differences in how quickly they see results, both medicines are proven to support weight loss when used alongside lifestyle changes.

Will I lose weight more slowly on Wegovy compared to Mounjaro?

Not necessarily. Weight loss speed depends on many factors, such as your health, lifestyle, and consistency with treatment. Some people report slower progress, while others continue to lose weight steadily after switching.

Are Wegovy’s side effects worse than Mounjaro’s?

Side effects are not always worse with Wegovy. Both medicines may cause symptoms like nausea or bloating, especially at the start, but these usually improve over time. Careful dose adjustments and support from your healthcare team can make them manageable.

Can I switch back to Mounjaro if Wegovy doesn’t work?

Yes, it may be possible if recommended by your clinician. The Care Pharmacy team can guide you through the process and ensure you have access to the treatment that best supports your goals.

Do Wegovy and Mounjaro work in the same way?

Both belong to a class of medicines called GLP-1 receptor agonists, which help regulate appetite and support weight loss. However, they are not identical, and individual responses can vary.

Is Wegovy available on the NHS or private prescription in the UK?

Yes, Wegovy is available on the NHS for eligible patients and privately through clinics and pharmacies. The Care Pharmacy offers private prescriptions and guidance to support your treatment.

How soon will I notice results after switching to Wegovy?

Results vary from person to person. Some people notice changes in the first few weeks, while others may take longer. Consistency with your treatment plan, diet, and physical activity has a big impact on how quickly results appear.

Medically reviewed by

Mohammed Lakhi

Superintendent Pharmacist

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