Weight Loss Injections
We offer a range of treatments to support your weight loss journey
Simply complete a quick and easy assessment and our UK-registered prescribers will advise whether a prescription GLP-1 weight loss injection is right for you.
We are currently closed for Christmas and will be available to accept new patient assessments from 29th December when our next offer starts.
The approved weight loss injections available in the UK are Wegovy®, Mounjaro®, and Saxenda®.
All three belong to the same group of medications called GLP-1 receptor agonists, which help control appetite and support weight loss. However, Mounjaro® is unique because it also mimics a second hormone, GIP (glucose-dependent insulinotropic polypeptide), making it a dual agonist for even greater effectiveness.
Which Weight Loss Injections Are Available in the UK?
Wegovy® (Semaglutide)
Weekly Weight Loss Injection
From £129.99: new offer starts 29th December.
Wegovy® is a weight loss injection that contains the active ingredient semaglutide, a GLP-1 receptor agonist. It works by reducing appetite and slowing digestion, helping you feel full for longer and making it easier to stick to a healthy diet.
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Injected once a week, on the same day each week.
The dosage increases gradually until reaching a maintenance dose of 2.4 mg.
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In clinical trials:
50% of people lost 15% or more of their starting weight.
83.5% of people lost at least 5% of their starting weight.
These results were based on injecting the 2.4 mg dose for 68 weeks alongside a healthy diet.
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The same active ingredient (semaglutide) is used in Ozempic®, a treatment for type 2 diabetes. However, Wegovy® is designed specifically for weight loss, and you do not need to have diabetes to use it.
Mounjaro® (Tirzepatide)
Weekly Weight Loss Injection
From £199.99: new offer starts 29th December.
Mounjaro® is a once-weekly weight loss injection that contains tirzepatide, which mimics both GLP-1 and GIP hormones. Like Wegovy®, it reduces appetite and slows digestion, but the added GIP is believed to further enhance these effects.
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Injected once a week, on the same day each week.
The dosage gradually increases up to a maximum maintenance dose.
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Clinical trials show:
Users lost up to 22.5% of their starting weight after 72 weeks on the highest 15 mg dose.
96.3% of people lost at least 5% of their starting weight.
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While Mounjaro® is also approved as a type 2 diabetes treatment, it can be prescribed specifically for weight loss, even if you don’t have diabetes. However, the dosage schedule may differ for those using it to manage diabetes.
Effective weight loss medication
Mounjaro is the newest and most powerful weight loss injection, with clinical trials showing an average 20% body weight loss. This makes it more effective than other weight loss treatments like Saxenda (10%) and Wegovy (15%).
This once-weekly weight loss pen contains tirzepatide, an ingredient that helps regulate appetite and improve how the body processes food, making it easier to lose weight.
Mounjaro: Most Effective Weight Loss Injection
How Mounjaro Works
Gradual dosing: Treatment begins at 2.5mg and is slowly increased to the full 15mg maintenance dose to minimize side effects.
Easy weekly injections: Like other weight loss injections, Mounjaro is taken once a week under the skin.
Mounjaro is a game-changing weight loss treatment, offering the most significant weight loss results of any injection available today.
Wegovy is a new weight loss treatment that can help people lose around 15% of their body weight on average. It comes as a convenient weight loss pen and is injected under the skin once a week.
Semaglutide, works by reducing hunger, helping you eat fewer calories and making weight loss more achievable. Clinical studies have shown that Wegovy can be highly effective for long-term weight management.
Wegovy: A Breakthrough Weight Loss Injection
How Wegovy Works
Gradual dosing: The treatment starts with a low dose, which increases over time to reach the full maintenance dose.
Eligibility: Wegovy is prescribed for people with a BMI over 30 or over 27.5 if they have other health risks.
Wegovy is set to transform weight loss injections, offering a powerful new way to support people on their journey to a healthier weight.
How Effective Are Weight Loss Injections?
Weight loss injections work best when taken at the maintenance dose, alongside a healthy diet and regular exercise.
The results shown are based on clinical trials where participants combined the injections with a calorie-controlled diet and regular exercise.
Weight Loss Injection Average Weight Loss (% of Body Weight) Timeframe Source Mounjaro® (15 mg) Up to 20.9% 72 weeks Wegovy® (2.4 mg) Up to 14.9% 68 weeks Saxenda® (3 mg) Up to 8% 56 weeks
These figures are based on clinical trial data and may vary depending on individual factors such as adherence to treatment, lifestyle modifications, and baseline health conditions. It's essential to consult with a healthcare provider to determine the most appropriate weight loss strategy for your specific situation.
Note: The percentages represent the mean percentage change in body weight observed in clinical trials.
Benefits of Weight Loss Pens Online
Weight loss injections like Mounjaro®, Wegovy®, and Saxenda® have been clinically proven to help with weight loss when combined with a healthy diet and exercise plan. For best results, certain foods should be avoided while using these treatments.
Key Benefits of Weight Loss Injections:
More effective than weight loss tablets or lifestyle changes alone.
Reduces appetite, making it easier to stick to a diet plan.
Lowers blood sugar levels, which can benefit overall health.
Easy to use pre-filled injectable pens—no need for syringes.
May help prevent the need for weight loss surgery.
Health & Well-Being Benefits of Losing Weight:
Lower risk of weight-related conditions, such as prediabetes.
Boosted confidence and self-esteem.
Improved mental health, especially if weight has affected mood.
Better physical health, reducing strain on the heart, joints, and bones.
Ordering weight loss injections in the UK online means that you benefit from all of the convenience of online delivery. There’s no need to visit a pharmacy in person to fill your weight loss injections prescription – you get the medication sent straight to your door instead.
Take a look at our guide on meal planning for weight loss injections to help you maintain a healthy, balanced diet while using weight loss pens.
Who Can Buy Weight Loss Injections?
In the UK, weight loss treatments, including prescription medications like Wegovy, Mounjaro, and Saxenda, can only be prescribed by a healthcare professional, typically a GP (general practitioner) or a prescriber.
Eligibility for Prescription Weight Loss Treatments:
Generally, these treatments are prescribed to individuals who have a BMI (Body Mass Index) of 30 or higher (obesity) or BMI of 27 or higher if they have weight-related health issues like diabetes, high blood pressure, or heart disease.
In the UK, weight loss treatments like Wegovy, Mounjaro, and Saxenda can be purchased only with a prescription, and individuals must meet certain health criteria such as a specific BMI and failure of other weight management methods. You must complete a health assessment before starting your weight loss treatment to ensure suitability.
PillTime only provide weight loss treatments to those who are 18 or over. You must also complete a check-in assessment before you will be prescribed each additional dose.
Who Should NOT Take Weight Loss Injections?
You should not take semaglutide, liraglutide, tirzepatide, or similar weight loss medications if you:
🚫 Are not overweight or obese
🚫 Are pregnant, trying to conceive, or breastfeeding
🚫 Have severe digestive issues like gastroparesis
🚫 Have an allergy to the medication
If you have other medical conditions, speak to your doctor before starting treatment to ensure it’s safe for you.
Do Weight Loss Injections Work for Everyone?
Weight loss injections work for most people, but they don’t work on their own—you’ll need to follow a healthy diet and exercise plan for the best results. If one injection doesn’t work for you, a different one with another active ingredient may be more effective. These treatments are most effective once you reach the maintenance dose.
Weight Loss Pens: Safety, Side Effects and Considerations
Like all medications, weight loss injections may cause side effects, especially when you first start or increase your dose. These usually improve within a few weeks. If side effects persist or become severe, speak to a doctor - you may need a lower dose or a different treatment.
Serious Side Effects of Weight Loss Pens (Rare, but Require Urgent Medical Attention)
Diabetic retinopathy complications (Wegovy® only, in diabetics)
Pancreatitis (inflamed pancreas)
Anaphylaxis (severe allergic reaction)
Common Side Effects of Weight Loss Pens
Nausea (feeling sick)
Vomiting (being sick)
Diarrhea or constipation
Headaches
Dizziness
Dry mouth
Redness or itching at the injection site
If you experience severe pain, breathing difficulties, or swelling, call 999 or go to A&E immediately. For a full list of side effects, check the patient information leaflet.
