Which Is Better for Weight Loss in NZ: Mounjaro or Wegovy?

If you’re trying to decide between Mounjaro and Wegovy, you’re not alone.

Both are effective weight loss injections available in New Zealand — but they’re not identical, and the right choice depends on your goals, budget, and how your body responds.

This guide focuses on what most people actually want to know:

👉 Which one should I choose?

Key facts: Mounjaro vs Wegovy

• Both are weekly weight loss injections

• Both require assessment by a NZ-registered doctor

• Neither is currently funded by Pharmac

• Both are available via private prescription in New Zealand

• Mounjaro targets GIP + GLP-1, while Wegovy targets GLP-1 only

• Mounjaro has shown greater average weight loss in clinical trials

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If your goal is maximum weight loss

In general, Mounjaro is the stronger option.

Clinical trials and real-world use show:

• Mounjaro can lead to around 15–22% total body weight loss

• Wegovy typically leads to around 10–15%

  
  

In practice:

• Many patients lose around 2–4 kg per month once established on treatment

• Results build gradually over time

• Higher doses tend to produce greater results

  
  

👉 If your priority is the most effective weight loss, Mounjaro is often preferred

If cost is your main concern

Wegovy is usually the more affordable option.

Typical NZ pricing:

• Wegovy: around $365–$470 per month depending on dose

• Mounjaro: around $429–$874 per month depending on dose

  
  

👉 If you’re looking for a lower-cost starting point, Wegovy may be the better option

If you’re unsure how your body will respond

Both medications are generally well tolerated, but individual response varies.

Common side effects for both include:

• Nausea

• Constipation

• Reflux

  
  

In practice:

• Side effects are usually temporary

• Most noticeable when starting or increasing dose

• Often improve over time

  
  

👉 Some patients start on one medication and switch if needed

If you want a structured, doctor-led approach

Both medications should be prescribed as part of a medical plan.

At Pocket Lab, patients receive:

• A personalised assessment with a NZ GP

• Ongoing clinical support

• Regular check-ins to adjust treatment

• Medication delivered directly to your home

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What most patients choose

In practice, the decision often comes down to:

• Budget

• Weight loss goals

• Preference after discussing with a doctor

  
  

A common pattern is:

• Start with Wegovy for affordability

• Switch to Mounjaro later for greater weight loss

  
  

Others choose Mounjaro from the beginning if they want the strongest results.

So which is better?

There’s no single “best” option for everyone.

In general:

• Choose Mounjaro if your goal is maximum weight loss

• Choose Wegovy if cost is your main priority

  
  

The best choice is the one that fits your goals and is safe for you medically.

How to get started in New Zealand

Both Mounjaro and Wegovy require a doctor assessment.

At Pocket Lab, the process is simple and fully online:

• Complete a short eligibility check

• Speak with a NZ-registered doctor

• If appropriate, treatment is arranged

• Medication is delivered directly to your home

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