Save on Mounjaro: NHS Prescriptions and Smarter Buying Options
Starting in September 2025, the cost of Mounjaro injections in the UK will rise. For many people using the drug to manage diabetes or weight, this may feel worrying. The good news is that there are still affordable options — especially if you qualify for an NHS prescription for Mounjaro. This guide breaks down the price differences by dosage and explains safe ways to access the medicine.

Understanding the Dosage Differences
- Starter dose (2.5 mg or 5 mg, weekly injection)
Usually prescribed at the beginning of treatment to allow the body to adjust.
- Intermediate doses (7.5 mg – 10 mg)
Used for gradual escalation when patients tolerate lower doses.
- High maintenance doses (12.5 mg – 15 mg)
Most effective for long-term control but also the most expensive in the private market.
⚠️ The higher the dosage, the greater the financial burden, especially after September’s price increase.
Routes to Access Mounjaro
1. NHS Prescription for Mounjaro
Already approved on the NHS for type 2 diabetes.
May be available for weight management if BMI ≥ 35 with additional health risks.
An NHS prescription for Mounjaro is generally the most affordable and safest option, as costs are subsidised.
2. Private Online Pharmacies
Convenient ordering and home delivery.
Prices vary by dose: starter pens cost less, while 15 mg pens can exceed £240 per month.
Patients must confirm the pharmacy is GPhC-registered to ensure authenticity.
3. Private Clinics (Offline)
Provide in-person consultations and follow-up services.
Pricing often higher than online platforms.
May suit patients needing regular monitoring or tailored care.
Available Doses of Mounjaro
Dose (mg) | Purpose | Notes |
---|---|---|
2.5 mg | Starter dose | Helps the body adapt; reduces early side effects |
5 mg | Early maintenance | Improves blood sugar and weight control |
7.5 mg & 10 mg | Intermediate levels | Escalation for better results if tolerated |
12.5 mg & 15 mg | High maintenance | Strongest doses; for patients tolerating lower levels well |
The Dose Escalation Process
1.Start at 2.5 mg – used for several weeks.
2.Increase to 5 mg – if tolerated, typically after the starter phase.
3.Escalate gradually – doses raised every 4–8 weeks depending on patient response.
4.Find the right balance – some stabilise at 5 mg or 10 mg, others reach 12.5–15 mg.
⚠️ Medical supervision required – never adjust doses without a healthcare professional.
Cost-Saving Strategies
1.Check Eligibility for NHS Prescription for Mounjaro
- Especially important for patients requiring higher doses, as private costs rise steeply.
2.Consider Bundle or Subscription Models
- Buying multiple pens together can lower the per-pen price.
3.Compare Dose Costs Carefully
- Patients progressing to 15 mg should review whether switching channels (e.g., from clinic to online) reduces expenses.
4.Stay in Regular Contact with Your Doctor
- Dose adjustments due to side effects (nausea, diarrhoea) may delay escalation, temporarily reducing costs.
Final Thoughts
The September 2025 price increase highlights the growing financial burden of higher-dose Mounjaro pens. Patients on long-term therapy should review their eligibility for an NHS prescription for Mounjaro, which provides the most secure and cost-effective option. For those outside NHS criteria, comparing providers, leveraging bundles, and monitoring dosage needs can help manage expenses without interrupting treatment.