Best Weight Loss Injections In Stock UK | Cured Pharmacy

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Best Weight Loss Injections - All Doses In Stock UK

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Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Mounjaro Weight Loss Injections (Tirzepatide) KwikPen - UK-licensed prescription Treatment
Treatment

Mounjaro Weight Loss Injections (Tirzepatide) KwikPen

From £145.00

Future orders save 5%
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Wegovy (Semaglutide) Weight Loss Injection - UK-licensed prescription Treatment
Treatment

Wegovy (Semaglutide) Weight Loss Injection

From £89.00

Future orders save 5%
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Saxenda - UK-licensed prescription Treatment
Treatment

Saxenda

From £68.00

Future orders save 5%
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Orlistat - UK-licensed prescription Treatment
Treatment

Orlistat

From £32.00

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Xenical Orlistat 120mg Capsules - UK-licensed prescription Treatment
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Xenical Orlistat 120mg Capsules

From £49.99

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Wegovy® Oral Tablets (Semaglutide Pill): PRE-ORDER - UK-licensed prescription Treatment
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Wegovy® Oral Tablets (Semaglutide Pill): PRE-ORDER

From £83.00

Future orders save 5%
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Best Weight Loss Injections - All Doses In Stock UK

Published on: June 03, 2026

Finding the best weight loss injections in stock UK can be challenging during ongoing supply shortages, but Cured Pharmacy maintains full availability of all licensed doses. Our UK-registered clinical team provides free consultations under three minutes, with transparent upfront pricing and genuine MHRA-licensed medications delivered discreetly to your door.

Comparing the Best Weight Loss Injections in Stock UK: Mounjaro, Wegovy, and Saxenda

Three injectable weight loss treatments are currently licensed by the MHRA for weight management in the UK: Mounjaro (tirzepatide), Wegovy (semaglutide), and Saxenda (liraglutide). Each works through the GLP-1 pathway to regulate appetite and blood sugar, but they differ significantly in efficacy, dosing frequency, and mechanism of action [1].

Mounjaro represents the newest generation, functioning as a dual GIP/GLP-1 receptor agonist rather than targeting GLP-1 alone. In the SURMOUNT-1 trial, participants achieved average weight reductions of up to 22.5% over 72 weeks on the highest dose—substantially greater than earlier single-pathway treatments [1]. Wegovy demonstrated average weight loss of 14.9% in the STEP-1 trial, whilst Saxenda showed approximately 8% reduction in the SCALE Obesity and Prediabetes study [2][3].

At Cured Pharmacy, all three treatments are available in every licensed dose strength, with pricing starting from £135.00 for Mounjaro, subject to prescriber approval following your clinical assessment.

How Weight Loss Injections Work: GLP-1 and Dual Agonist Mechanisms

GLP-1 (glucagon-like peptide-1) is a naturally occurring hormone that your body releases after eating. It signals fullness to your brain, slows gastric emptying, and helps regulate blood sugar levels. Injectable weight loss treatments replicate this hormone's action, producing sustained appetite suppression between doses [4].

Saxenda contains liraglutide and requires daily injection, whilst Wegovy uses a modified semaglutide molecule that allows once-weekly dosing. Both are pure GLP-1 receptor agonists. Mounjaro takes a different approach—tirzepatide activates both GLP-1 and GIP (glucose-dependent insulinotropic polypeptide) receptors simultaneously, which clinical trials suggest produces greater metabolic effects [1][5].

The dual-agonist mechanism appears particularly effective at reducing body weight whilst maintaining lean muscle mass. In head-to-head SURPASS trials, tirzepatide consistently outperformed semaglutide for both weight reduction and glycaemic control, though both remain highly effective options that UK prescribers may recommend based on individual patient factors [5].

Understanding Dosing Schedules and Titration

All three treatments require gradual dose escalation to minimise gastrointestinal side effects. Saxenda begins at 0.6mg daily and increases weekly to a maintenance dose of 3mg. Wegovy starts at 0.25mg weekly, escalating over 16-20 weeks to 2.4mg. Mounjaro follows a similar pattern, beginning at 2.5mg weekly and potentially increasing to 15mg based on response and tolerability.

Your UK prescriber will determine the appropriate starting dose and titration schedule during your clinical assessment. This gradual approach significantly reduces the likelihood of nausea, vomiting, and other common side effects whilst your body adjusts to the medication [4].

Clinical Evidence: What the Trials Tell Us About Efficacy

The SURMOUNT-1 trial enrolled 2,539 adults with obesity and demonstrated that tirzepatide produced dose-dependent weight loss, with the 15mg weekly dose achieving mean reductions of 22.5% at 72 weeks—more than one in three participants lost at least 25% of their body weight [1]. These results represent the highest efficacy seen in any obesity medication trial to date.

Wegovy's evidence base comes primarily from the STEP trial programme. STEP-1 showed that 69% of participants on semaglutide 2.4mg lost at least 10% of body weight compared to 12% on placebo, with mean weight loss of 14.9% over 68 weeks [2]. The treatment also demonstrated cardiovascular benefits in the SELECT trial, reducing major adverse cardiovascular events by 20% in adults with established cardiovascular disease [6].

Saxenda's SCALE trials showed more modest but clinically meaningful results, with average weight loss of 8% over 56 weeks and 63% of participants achieving at least 5% weight reduction [3]. As the oldest of the three treatments, Saxenda has the longest real-world safety data, with over a decade of clinical use globally.

Real-World Effectiveness vs Clinical Trials

Clinical trial results represent optimal conditions with intensive support, regular monitoring, and highly motivated participants. Real-world effectiveness typically shows slightly lower average weight loss, though many patients still achieve substantial results when treatment is combined with dietary modifications and increased physical activity.

UK prescribers emphasise that these medications are adjuncts to lifestyle changes, not replacements. NICE guidelines recommend their use alongside a reduced-calorie diet and increased physical activity programme for adults with a BMI of 30 kg/m² or above, or 27 kg/m² with weight-related comorbidities [7].

Treatment Active Ingredient Dosing Frequency Average Weight Loss Starting Price
Mounjaro Tirzepatide (dual GIP/GLP-1) Once weekly Up to 22.5% (72 weeks) From £124.99
Wegovy Semaglutide (GLP-1) Once weekly Average 14.9% (68 weeks) From £69.00
Saxenda Liraglutide (GLP-1) Daily injection Average 8% (56 weeks) From £68.00

Who Can Use Weight Loss Injections: Eligibility and Contraindications

MHRA licensing and NICE guidance specify that GLP-1 weight loss treatments are indicated for adults with a body mass index (BMI) of 30 kg/m² or above, or 27 kg/m² or above with at least one weight-related comorbidity such as type 2 diabetes, hypertension, or obstructive sleep apnoea [7]. Your UK prescriber will calculate your BMI and assess your medical history during the online consultation.

Absolute contraindications include personal or family history of medullary thyroid carcinoma, multiple endocrine neoplasia syndrome type 2, pregnancy, breastfeeding, and age under 18 years. Relative contraindications that require careful prescriber assessment include history of pancreatitis, severe gastrointestinal disease, diabetic retinopathy, and renal impairment [4][8].

At Cured Pharmacy, our UK-registered prescribers review your complete medical history, current medications, and any contraindications before approving treatment. The consultation takes under three minutes to complete, and you'll receive a clear decision with transparent pricing before any payment is required.

Managing Side Effects: What to Expect and When to Seek Help

Gastrointestinal side effects are the most common adverse reactions across all GLP-1 treatments. In clinical trials, 30-50% of participants experienced nausea, with lower rates of vomiting, diarrhoea, and constipation [1][2][3]. These effects typically emerge during dose escalation and diminish over several weeks as your body adjusts.

Strategies to minimise side effects include eating smaller meals, avoiding high-fat foods, staying well hydrated, and not lying down immediately after eating. If nausea persists or worsens, your prescriber may recommend temporarily remaining at your current dose before further escalation, or in some cases, dose reduction.

Serious but rare side effects requiring immediate medical attention include severe abdominal pain that may indicate pancreatitis, signs of thyroid tumours such as a lump in the neck or persistent hoarseness, symptoms of gallbladder disease, or severe allergic reactions. Hypoglycaemia can occur if you're taking other diabetes medications concurrently, so dose adjustments of those treatments may be necessary [4][8].

Long-Term Safety Considerations

Long-term safety data for tirzepatide extends to 72 weeks from clinical trials, whilst semaglutide and liraglutide have been studied for several years in diabetes populations at similar or higher doses. Post-marketing surveillance continues to monitor for rare adverse events across all three medications.

UK prescribers typically recommend regular follow-up to monitor weight loss progress, assess tolerability, and review the ongoing need for treatment. NICE guidance suggests considering treatment discontinuation if less than 5% weight loss is achieved after 6 months at the target dose, as continued use is unlikely to provide meaningful benefit [7].

Getting Started: The Cured Pharmacy Clinical Assessment Process

Beginning treatment for weight management through Cured Pharmacy starts with a free online consultation that takes under three minutes to complete. You'll provide information about your height, weight, medical history, current medications, and any previous weight loss treatments you've tried. This information allows our UK-registered prescribers to assess your suitability and determine the most appropriate treatment option.

Unlike many online services, Cured Pharmacy displays transparent upfront pricing before you begin your consultation—there are no hidden fees or surprise charges. If approved, your prescription is dispensed by our GPhC-registered pharmacy (registration number 9012511) under the supervision of our superintendent pharmacist, Tarun Kumar (GPhC 2233073).

All medications are genuine UK-licensed products sourced through regulated wholesale channels and delivered in 100% discreet packaging. Most orders are dispatched within 24 hours of prescription approval, with tracked delivery to your preferred address. If you have questions at any stage, our clinical team is available by phone on (+44) 116 4646009 during business hours.

Ongoing Support and Prescription Renewals

Weight loss treatment typically requires ongoing prescriptions as you progress through dose escalation and continue on your maintenance dose. Cured Pharmacy makes renewals straightforward—you'll receive reminders when it's time to reorder, and subsequent consultations take even less time as your prescriber already has your baseline information on file.

Our clinical team monitors your progress at each renewal, checking for any new side effects, medication interactions, or changes in your health status that might affect treatment suitability. This ongoing oversight ensures you receive safe, effective care throughout your weight management journey.

Scientific References

  1. Jastreboff, A. M., Aronne, L. J., Ahmad, N. N., et al. (2022). Tirzepatide Once Weekly for the Treatment of Obesity. New England Journal of Medicine, 387(3), 205–216. https://doi.org/10.1056/NEJMoa2206038 [accessed 13 August 2026]
  2. Wilding, J. P. H., Batterham, R. L., Calanna, S., et al. (2021). Once-Weekly Semaglutide in Adults with Overweight or Obesity. New England Journal of Medicine, 384(11), 989–1002. https://doi.org/10.1056/NEJMoa2032183 [accessed 13 August 2026]
  3. Pi-Sunyer, X., Astrup, A., Fujioka, K., et al. (2015). A Randomized, Controlled Trial of 3.0 mg of Liraglutide in Weight Management. New England Journal of Medicine, 373(1), 11–22. https://doi.org/10.1056/NEJMoa1411892 [accessed 13 August 2026]
  4. Electronic Medicines Compendium. (2023). Mounjaro 2.5 mg solution for injection in pre-filled pen - Summary of Product Characteristics. Medicines.org.uk. Retrieved from https://www.medicines.org.uk/emc/product/14881 [accessed 13 August 2026]
  5. Frías, J. P., Davies, M. J., Rosenstock, J., et al. (2021). Tirzepatide versus Semaglutide Once Weekly in Patients with Type 2 Diabetes. New England Journal of Medicine, 385(6), 503–515. https://doi.org/10.1056/NEJMoa2107519 [accessed 13 August 2026]
  6. Lincoff, A. M., Brown-Frandsen, K., Colhoun, H. M., et al. (2023). Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes. New England Journal of Medicine, 389(24), 2221–2232. https://doi.org/10.1056/NEJMoa2307563 [accessed 13 August 2026]
  7. National Institute for Health and Care Excellence. (2023). Semaglutide for managing overweight and obesity [TA875]. NICE. Retrieved from https://www.nice.org.uk/guidance/ta875 [accessed 13 August 2026]
  8. Electronic Medicines Compendium. (2023). Wegovy 2.4 mg solution for injection in pre-filled pen - Summary of Product Characteristics. Medicines.org.uk. Retrieved from https://www.medicines.org.uk/emc/product/13799 [accessed 13 August 2026]
  9. NHS. (2026). Tirzepatide: a medicine to manage type 2 diabetes and treat obesity. https://www.nhs.uk/medicines/tirzepatide/ Accessed 13 August 2026.
  10. NHS. (2026). Overweight and obesity in adults. https://www.nhs.uk/conditions/overweight-and-obesity/ Accessed 13 August 2026.
  11. NHS England. (2026). Weight management injections. https://www.england.nhs.uk/ourwork/prevention/obesity/medicines-for-obesity/weight-management-injections/ Accessed 13 August 2026.

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication. Individual results may vary, and weight loss outcomes depend on multiple factors including adherence to treatment and lifestyle modifications.

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Faq

Which weight loss injection is most effective?
Clinical trials show Mounjaro (tirzepatide) produces the greatest average weight loss at up to 22.5% over 72 weeks, followed by Wegovy at 14.9% and Saxenda at approximately 8%. However, the best weight loss injections in stock UK for you depends on individual factors your prescriber will assess, including medical history, tolerability, and dosing preferences.
Are all doses of Mounjaro, Wegovy, and Saxenda currently in stock?
Yes, Cured Pharmacy maintains full stock of all licensed dose strengths for Mounjaro (2.5mg, 5mg, 7.5mg, 10mg, 12.5mg, 15mg), Wegovy (0.25mg, 0.5mg, 1mg, 1.7mg, 2.4mg), and Saxenda (6mg/ml pens). Stock levels are updated in real-time on our website.
How quickly will I see results from weight loss injections?
Most patients notice reduced appetite within the first week, with measurable weight loss typically beginning after 4-8 weeks. Maximum effects occur at maintenance dose—usually reached after 16-20 weeks of gradual titration. Clinical trials measured outcomes at 56-72 weeks to capture full treatment effects.
Do I need a prescription for weight loss injections in the UK?
Yes, all GLP-1 weight loss injections are prescription-only medications (POM) in the UK and require clinical assessment by a UK-registered prescriber. Cured Pharmacy provides a free online consultation that takes under three minutes, with same-day prescription decisions in most cases.
Can I switch between Mounjaro, Wegovy, and Saxenda?
Switching between GLP-1 treatments is possible under prescriber supervision, though there are no established protocols for direct dose conversion. Your UK prescriber will typically restart at a low dose of the new medication to assess tolerability, even if you were on a higher dose of your previous treatment.
What happens if I miss a dose of my weight loss injection?
For weekly injections (Mounjaro, Wegovy), take the missed dose as soon as you remember if it's within 4 days, then resume your regular schedule. If more than 4 days have passed, skip the missed dose and take your next dose on the regular day. For daily Saxenda, take your next dose at the usual time—never double dose.
Will I regain weight after stopping weight loss injections?
Clinical trials show that some weight regain typically occurs after discontinuing GLP-1 treatments, as the appetite-suppressing effects resolve. Maintaining weight loss long-term requires sustained lifestyle modifications including dietary changes and regular physical activity, which should be established during treatment.
Are weight loss injections covered by the NHS?
NHS availability varies by region and is subject to strict eligibility criteria through local integrated care boards (ICBs). Many patients choose private prescription through registered online pharmacies like Cured Pharmacy for faster access and guaranteed stock availability across all dose strengths.
How much do weight loss injections cost at Cured Pharmacy?
The cost of weight loss injections at Cured Pharmacy varies depending on the specific treatment and dosage strength you require. Our transparent pricing includes your medication, prescription service, and free discreet delivery across the UK, with no hidden fees.
Are weight loss injections available without a prescription in the UK?
No, weight loss injections are prescription-only medications in the UK and cannot be legally supplied without a valid prescription. Cured Pharmacy provides a free online consultation service with UK-registered prescribers who will assess your suitability before issuing a prescription.
How quickly can I get weight loss injections delivered in the UK?
Cured Pharmacy offers fast dispatch once your prescription is approved, with most orders delivered within 1-3 working days via our discreet delivery service. We prioritize getting your weight loss injections to you quickly whilst maintaining full regulatory compliance and patient safety.
Which weight loss injections are currently in stock at Cured Pharmacy?
Cured Pharmacy maintains stock of the leading weight loss injection brands subject to availability and ongoing supply. Check our website for real-time stock status, or contact our pharmacy team who can advise on current availability and suitable alternatives if your preferred option is temporarily out of stock.
Are weight loss injections safe to use long term?
Weight loss injections have been extensively studied and are considered safe for long-term use when prescribed and monitored appropriately by healthcare professionals. Cured Pharmacy provides ongoing support throughout your treatment, and our prescribers regularly review your progress to ensure the medication remains safe and effective for you.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Reviewed on: June 03, 2026

Last reviewed: 13 August 2026

Last updated on 13 August 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 13 August 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (13 August 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Prescribing Pharmacist


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