Prescription Weight Loss Medication Daytona: UK Online Option (October 2026)

01 · Cost and access

What prescription weight loss medication costs and how to get it

The Mounjaro pen starts at £169.99 per month at the standard 2.5mg price. Your first 2.5mg pen costs £129.99 with code FIRST40. Every later order is £25 off the standard price (code DOSE25).

The discount applies at any dose. Switching to us at 15mg? Your first order is £289.99. All six doses are in stock. You can compare the full range on our Mounjaro prices guide.

Planning ahead: if you step up after 4 weeks on each dose, your first four pens (2.5mg to 10mg) cost £959.96 at standard prices. A first year costs £2,711.88 if you settle at 5mg, up to £3,599.88 at 15mg. A new customer's first order is £40 less and every later order £25 less.

02 · Ordering

How ordering works

• Complete the free online consultation, a short health questionnaire with no obligation.
• A GPhC-registered prescriber reviews it. Payment is taken when you place the order; if the prescriber decides the treatment is not suitable, the order is refunded automatically in full.
• We dispense and dispatch, same day if ordered by 3pm, with free next-day tracked delivery in discreet, temperature-controlled packaging.

Our official LillyDirect supply means genuine KwikPens sourced from Eli Lilly's UK distribution. Klarna and pay-monthly options are available, with no subscription. For more, see our UK pharmacy overview.

03 · What Mounjaro is

What Mounjaro is and how it works

Mounjaro is the brand name for tirzepatide, a once-weekly injectable prescription medicine made by Eli Lilly. In the UK it is licensed for weight management in adults and for type 2 diabetes. It comes as a pre-filled multi-dose KwikPen in six strengths: 2.5mg, 5mg, 7.5mg, 10mg, 12.5mg and 15mg.¹

Tirzepatide activates two natural gut-hormone receptors, GIP and GLP-1. These help regulate appetite, slow how quickly the stomach empties and improve the body's response to insulin. Most people feel fuller sooner and less hungry between meals, which supports a reduced-calorie diet.¹

04 · Trial results

What the SURMOUNT-1 trial found

In SURMOUNT-1, 2,539 adults taking tirzepatide alongside diet and exercise lost on average 15% of body weight on 5mg, 19.5% on 10mg and 20.9% on 15mg over 72 weeks, compared with 3.1% with lifestyle changes alone.²

For someone starting at 100 kg, 20.9% is about 21 kg. These are trial averages, so individual results vary, and treatment works alongside a reduced-calorie diet and increased physical activity, not instead of them.²

05 · Eligibility and NHS

Who can be prescribed it

Mounjaro is licensed for adults with a BMI of 30 or above, or a BMI between 27 and 30 with at least one weight-related condition such as high blood pressure, high cholesterol, obstructive sleep apnoea, cardiovascular disease, prediabetes or type 2 diabetes. A prescriber assesses your BMI, medical history and current medicines first.¹

Mounjaro is also available on the NHS, but access is being phased in over several years. NICE recommends it for adults with a BMI of at least 35 plus a weight-related condition, and the primary-care rollout began in June 2025 with the highest-need groups first.⁴⁶ Many people who meet the licensed criteria choose regulated private treatment rather than waiting.

06 · Other medicines

Taking other medicines alongside it

Because Mounjaro slows stomach emptying, it can affect how quickly some oral medicines are absorbed, particularly at the start or when the dose rises. Tell your prescriber about everything you take, especially warfarin or other narrow-margin medicines, insulin or sulfonylureas, where doses may need reducing to avoid low blood sugar. No adjustment is needed for paracetamol.¹¹³

Mounjaro is prescription-only and used alongside a reduced-calorie diet and more activity. This page is information, not a substitute for medical advice. See also types of prescription weight loss medication.