How to Access Prescription Weight Loss Medication in New Zealand

For many New Zealanders, the path to prescription weight management medication is less complicated than they expect — but it does require a proper clinical assessment. Understanding the steps involved helps you prepare and sets realistic expectations for the process.

Step One: Assess Whether You Are a Candidate

Before booking a consultation, it is worth considering the basic eligibility criteria. Most prescribers in New Zealand follow guidelines that require a BMI of 30 or above, or 27 or above alongside a weight-related health condition such as type 2 diabetes, hypertension, high cholesterol, or sleep apnoea.

You will also generally be expected to have made some attempt at lifestyle-based weight management. This does not mean you need to have followed a specific programme — it means the prescriber wants to understand your history and confirm that medication is an appropriate next step.

Step Two: Book a Consultation

Accessing prescription weight loss medication in New Zealand requires a prescription from a registered doctor. This can be obtained through your regular GP or through a telehealth provider that offers weight management services.

Telehealth has made this more accessible for people who cannot easily get a GP appointment, who live in areas with limited access, or who prefer the convenience of an online consultation.

Step Three: The Clinical Assessment

During your consultation, the doctor will review:

·         Your BMI and weight history

·         Relevant health conditions and current medications

·         Recent lab results where available (kidney function, liver enzymes, HbA1c, thyroid)

·         Your history with weight management approaches

·         Any contraindications to the medications being considered

If the assessment supports prescribing, the doctor will discuss which medication is appropriate and explain the dose titration schedule.

Step Four: Starting Treatment

GLP-1 medications are started at a low dose and increased gradually over several months. This titration process manages side effects — particularly nausea — and allows your body to adjust to the medication.

Most patients have a follow-up consultation after the initial period to review progress, address any side effects, and adjust the plan if needed.

Cost and Funding

For most patients, weight management medications are not publicly funded through Pharmac and must be paid for privately. Costs vary depending on the medication and dose. It is worth discussing this with your prescriber and factoring it into your decision.