The UK's most complete GLP-1 guide
Every Question Answered. Every Side Effect Explained.
- How GLP-1 medications work
- Mounjaro vs Wegovy compared
- Injection instructions
- Side effects & solutions
- What to eat on treatment
- FAQs answered
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Weight Loss in Glasgow — Prescription Medication Options
If you're looking for weight loss support in Glasgow, prescription medication may be an option. The NHS and private healthcare providers in Scotland offer several evidence-based treatments for eligible adults, including GLP-1 weight loss injections. This guide explains what's available, who qualifies, and how to access support through your GP or private prescribing services. Whether you're managing your weight through NHS weight management services or exploring private options, understanding your choices is the first step towards sustainable weight loss.
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Enter your height and weight below. Supports both imperial (stone & lbs) and metric (kg). Results include NHS category, healthy weight range, and ethnicity adjustments.
What Is BMI and Why Does It Matter?
Body Mass Index (BMI) is the most widely used screening tool for assessing whether your weight falls within a healthy range. Used by the NHS, GPs, and weight management services across the UK, BMI provides a quick snapshot of your weight relative to your height. The formula is simple: your weight in kilograms divided by your height in metres squared (kg/m²).
While BMI isn't a perfect measure — it doesn't account for muscle mass, bone density, or fat distribution — it remains the standard first step in identifying potential weight-related health risks including type 2 diabetes, cardiovascular disease, high blood pressure, and certain cancers.
The NHS also recommends adjusted thresholds for people of South Asian, Chinese, or Black African heritage — a BMI of 23 or above is classified as overweight, and 27.5 as obese. Our calculator includes this adjustment as a one-click toggle.
UK-Licensed Weight Loss Medications Available in Glasgow
Three prescription-only medications are currently licensed in the UK for weight management and available to Glasgow residents: Mounjaro (tirzepatide), Wegovy (semaglutide), and Saxenda (liraglutide).
Mounjaro is a once-weekly injection that works as a dual GIP and GLP-1 receptor agonist. Clinical trials showed adults lost an average of 15–21% of their body weight over 72 weeks when combined with diet and exercise. Wegovy is a once-weekly GLP-1 injection with average weight loss of around 15% in clinical trials. Saxenda is a daily injection option.
To be eligible for prescription weight loss medication through GLP-1 weight loss services, you typically need a BMI of 30 or above, or BMI 27–29.9 with a weight-related health condition such as type 2 diabetes, high blood pressure, or sleep apnoea. Individual results vary significantly, and all medications require a reduced-calorie diet and increased physical activity for best results.
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How It Works
Three simple steps to understand your weight and take action.
Enter your height and weight in our free calculator. Get your BMI, NHS category, healthy weight range, and ethnicity-adjusted thresholds instantly.
If your BMI suggests you're overweight or obese, explore our GLP-1 calculators to project potential weight loss on Mounjaro or Wegovy.
Use our progress tracker to log your weight weekly, visualise your journey with charts, and stay motivated — all stored privately in your browser.
Free Weight Loss Tools & Guides
Everything you need to understand your weight, explore medication options, and track your progress — completely free.
NHS vs Private Access in Glasgow
NHS route: If eligible, you can be referred to a tier 3 or tier 4 specialist weight management service in Scotland through your GP. NHS access to prescription weight loss medication varies by health board and waiting times can be substantial in some areas. Your GP can discuss whether you meet the eligibility criteria and arrange referral if appropriate.
Private route: Private online prescribing services are available to Glasgow residents without NHS referral. These require a clinical assessment by a UK-licensed prescriber and are dispensed by GPhC-registered pharmacies. Costs vary by dose and provider, typically ranging from £129–£320 per month depending on the medication and strength.
Whichever route you choose, a prescriber will assess your individual health to ensure weight loss medication is appropriate for you.
- Dual GIP/GLP-1 receptor agonist
- Up to 22.5% body weight loss (SURMOUNT-1)
- Weekly injection, dose escalation over 20+ weeks
- Available via private prescription in the UK
- Doses: 2.5mg → 5mg → 7.5mg → 10mg → 12.5mg → 15mg
- GLP-1 receptor agonist
- Up to 15–17% body weight loss (STEP trials)
- Weekly injection, 5-step dose escalation
- NHS & private prescription available
- Doses: 0.25mg → 0.5mg → 1mg → 1.7mg → 2.4mg
Mounjaro vs Wegovy: Head-to-Head
A side-by-side comparison of the two most popular GLP-1 weight loss medications available in the UK.
| Feature | Mounjaro | Wegovy |
|---|---|---|
| Drug class | Dual GIP/GLP-1 agonist | GLP-1 agonist |
| Active ingredient | Tirzepatide | Semaglutide |
| Avg. weight loss | 15–22.5% | 12–17% |
| Key trial | SURMOUNT-1 (2022) | STEP 1 (2021) |
| Max dose | 15 mg weekly | 2.4 mg weekly |
| Escalation period | 20–32 weeks | 16–20 weeks |
| Administration | Weekly injection (pen) | Weekly injection (pen) |
| NHS availability | Private prescription only | NHS & private |
| Approx. private cost | £150–£250/month | £150–£300/month |
| Common side effects | Nausea, diarrhoea, constipation | Nausea, vomiting, diarrhoea |
Data sourced from SURMOUNT-1 and STEP 1 clinical trials. Costs are approximate and vary by provider. Always consult a prescriber.
Am I Eligible for Weight Loss Medication?
In the UK, eligibility for GLP-1 weight loss medications like Mounjaro and Wegovy is based on your BMI and overall health profile.
- BMI of 30 or above (obese)
- Age 18 or over
- No contraindicated conditions
- Committed to lifestyle changes
- BMI of 27 or above
- Plus type 2 diabetes
- Or high blood pressure
- Or obstructive sleep apnoea
Use our BMI calculator to check whether your BMI falls within the eligible range.
How We Built These Tools
Every calculator and guide on myweightcheck is built with accuracy and transparency in mind. Our BMI calculator uses the standard WHO formula with NHS-aligned category thresholds. Our GLP-1 projections are modelled on published clinical trial data from SURMOUNT and STEP studies.
All data stays on your device. We don't require sign-ups, and we don't store your health information on any server. Your progress tracker saves data locally in your browser using localStorage, so only you can see it.
We're based in the UK and our tools are designed specifically for UK users — supporting stone & lbs by default, referencing NHS guidelines, using NICE-approved medication data, and linking to GPhC-registered pharmacies.
Frequently Asked Questions
Common questions about BMI, weight loss medications, and our free UK tools.
What weight loss medications are available in Glasgow?
Mounjaro (tirzepatide), Wegovy (semaglutide), and Saxenda (liraglutide) are all licensed for weight management in the UK and available to Glasgow residents. Mounjaro and Wegovy are once-weekly injections; Saxenda is daily. All are prescription-only and require clinical assessment before being prescribed.
How much weight can I lose with prescription weight loss medication?
Clinical trials show average weight loss of 15–21% of body weight, depending on the medication and dose. However, individual results vary significantly. Weight loss medication works best alongside a reduced-calorie diet and increased physical activity. Use our free GLP-1 weight loss calculator to see projected outcomes at different doses.
Am I eligible for weight loss medication on the NHS in Glasgow?
You may be eligible if you have a BMI of 30 or above, or BMI 27–29.9 with a weight-related health condition like type 2 diabetes or high blood pressure. Eligibility varies by health board. Your GP can assess whether you meet criteria and arrange referral to a specialist weight management service if appropriate.
How do I access weight loss medication privately in Glasgow?
Private online prescribing services are available to UK residents, including Glasgow. You'll need to complete a clinical assessment with a UK-licensed prescriber. If approved, a prescription is issued and dispensed by a GPhC-registered pharmacy. Costs vary by medication and dose.
Should I talk to my GP about weight loss medication?
Yes. Your GP can discuss whether prescription weight loss treatment is suitable for you, assess your eligibility, and provide referral to NHS specialist services if needed. Even if you're considering private options, your GP should be aware of any medications you're taking. Use our free BMI calculator to understand your current BMI category before your appointment.
Ready to take control of your weight loss journey?
Start with a free BMI check, explore your GLP-1 options, or begin tracking your progress today. No sign-up. No cost. Just results.