Weight Loss

Start your weight loss journey today!
Take a quick assessment to see if you’re eligible and get the right weight loss treatment for you.

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Expert Prescribing Pharmacists

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NHS Pharmacy

Complete a quick, confidential assessment, and our prescribers will assess whether a GLP-1 weight loss injection is the right choice to support your weight loss journey.

Weight loss treatments made simple

Wegovy® (Semaglutide)

✔ Weekly self injection

✔ Makes you feel fuller and reduces cravings

✔ Lose up to 15% of you body weight

1 pen and 4 disposable needles from £139.00

Mounjaro® (Tirzepatide)

✔ Weekly self injection

✔ Lose up to 20% of you body weight

✔ The most effective GLP-1

1 pen (4 doses) from £139.99

Supporting your weight loss journey

Start or continue your weight loss journey with our prescription weight loss injections.

Complete our free assessment, purchase your treatment and our UK registered prescribers will review your responses and prescribe a treatment if suitable to your needs.

Your medication will then be discreetly delivered to your preferred address with everything you need. You’ve got this!

How long does it take to lose weight?

  • Most people start seeing weight loss within the first few weeks.

  • Significant weight loss (10% or more) is usually achieved within 3 to 6 months with continued use.

  • Maximum weight loss is typically seen after 12 to 18 months.

How much weight can I expect to lose with injections?

The amount of weight you can expect to lose with weight loss injections depends on the specific treatment, your starting weight, and lifestyle factors such as diet and exercise.

Expected weight loss by injection brand type

  • Mounjaro (Tirzepatide) – Up to 20-22.5% of body weight

  • Wegovy (Semaglutide) – Around 15% of body weight

  • Saxenda (Liraglutide) – Around 10% of body weight

  • Ozempic (Semaglutide – off-label for weight loss) – Similar to Wegovy, but results vary

Weight Loss Injections

Why Choose PillTime?

As an NHS-registered pharmacy with 13,000+ 5-star Trustpilot reviews, you’re in safe hands.

Ongoing assessment by a registered prescriber to support your weight loss journey.

Your medication is tracked and delivered discreetly by Royal Mail.

How it works

A trusted NHS pharmacy: start your assessment

Weight Loss Pens and Injections

Weight loss injections can be a safe and effective way to lose extra weight. Some treatments, like Mounjaro®, have been shown to help people lose up to 22.5% of their body weight.

Choosing the right injection depends on:

✔ Your medical history
✔ Your comfort with self-injections
✔ Your personal preferences

In the UK, Mounjaro® and Wegovy® are popular choices because they are taken just once a week and have been shown to be more effective than many other weight loss treatments.

How do they work?

GLP-1 treatments help with weight loss in three important ways:

Control Appetite: They reduce hunger, making it easier to eat less.
Slowing Digestion: They help you feel full for longer.
Regulating Hormones: They balance blood sugar and energy levels, improving how your body processes food.

These effects work together to support long-term weight management. If you're thinking about this treatment, take our online assessment to see if it’s right for you.

Weight loss medication

Mounjaro:
Most Effective Weight Loss Injection

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.

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:
A Breakthrough Weight Loss Injection

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.

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.

Your questions, answered

  • To qualify for weight loss medication, you typically need to meet certain BMI requirements. This usually means:

    • BMI over 30, or

    • BMI between 27 and 30 with a weight-related condition or risk factor.

    You must also be 18 or older. Each medication has its own specific guidelines, so a qualified prescriber will review your medical history and current medications to ensure it’s safe for you.

    To check your eligibility, please complete our assessment form.

  • Weight loss injections help control hunger by mimicking natural hormones in your body. GLP-1 (found in Wegovy® and Mounjaro®) and GIP (found in Mounjaro®) send signals to your brain that make you feel full, even after eating less. They also slow down digestion, so you stay satisfied for longer.

    Many people struggle to cut calories or reduce snacking because they still feel hungry. By curbing appetite, weight loss injections make it easier to stick to a healthy diet and lose weight.

  • Capsules like Orlistat/Xenical help you lose weight by preventing your body from absorbing some of the fat in your food. This means you take in fewer calories from fat, which can support weight loss over time.

    Injectable treatments like Wegovy® and Mounjaro® work differently—they help control your appetite. These treatments mimic a natural hormone (GLP-1) that tells your brain you're full, helping you eat less. They also help regulate blood sugar and keep you feeling satisfied for longer.

    Both types of treatments work best when combined with a healthy diet and regular exercise as part of your weight loss plan.

  • Injectable GLP-1 treatments can be up to six times more effective than diet and exercise alone and nearly twice as effective as weight loss tablets.

    Mounjaro® is the most powerful option, as it combines GIP + GLP-1 for better results. Studies show that with the highest dose and healthy lifestyle changes, users lose an average of 20.9% of their body weight in 36 weeks and up to 25.3% in 88 weeks.

    In comparison, Wegovy® users report an average weight loss of up to 15% after a year.

  • Mounjaro® and Wegovy® are once-a-week injectable pens that are simple to use.

    They come pre-measured, so there’s no need for syringes or manual dosing. You can inject them into your arm, leg, or abdomen using a small, fine needle designed for a nearly painless experience.

    Each pen includes clear instructions, and video demonstrations are available to guide you through the process.

  • GLP-1s (glucagon-like peptide-1 receptor agonists) are some of the most effective weight loss medications available.

    They work by mimicking a natural hormone in your body that controls appetite, slows digestion, and helps you feel full longer. This makes it easier to eat smaller portions and reduce calorie intake, leading to gradual weight loss.

    GLP-1s are the key ingredient in injectable treatments like Mounjaro® and Wegovy®, which work best when combined with a healthy diet and regular exercise.

  • Yes, the injectable treatments (Mounjaro® KwikPen and Wegovy®), and Alli® are all licensed for weight loss in the UK.

  • When taking weight loss tablets or injections, you may experience some side effects, which can vary depending on the treatment.

    Common Side Effects:

    • Stomach issues – abdominal pain, diarrhea, or constipation

    • Nausea or vomiting – feeling sick or being sick

    • Headaches

    • Changes in taste

    • Fatigue – feeling more tired than usual

    Losing weight quickly can also affect your body. You might notice loose or sagging skin where you've lost weight, or stretch marks as your skin adjusts.

    For women, weight loss can also affect periods. Being overweight can cause irregular or missed periods, but during weight loss, your cycle may change again. Once you reach a stable weight, your periods may become more regular.

Now's the time to take the
first step toward your
weight loss journey!

Sources:

  • Clinical Trial Results A study involving adults with type 2 diabetes showed that after 68 weeks, those treated with Wegovy lost an average of 10% of their body weight, compared to a 3% loss in the placebo group. Additionally, 67% of participants in the Wegovy group achieved at least a 5% weight loss, compared to 30% in the placebo group.

  • Long-Term Efficacy Research indicates that Wegovy's weight loss effects can be sustained over extended periods.

  • Clinical Trial Results In a study published in the Journal of the American Medical Association, participants without diabetes experienced a mean weight reduction of approximately 20% when treated with tirzepatide (the active ingredient in Mounjaro).

  • Comparative Efficacy A clinical trial comparing Mounjaro to Wegovy found that Mounjaro led to greater weight loss. However, it's important to note that this study was sponsored by the manufacturer, which may introduce potential biases.

  • Additional Benefits Beyond weight loss, tirzepatide has shown promise in reducing the risk of heart failure outcomes and improving related symptoms in patients with type 2 diabetes.

  • Mounjaro (Tirzepatide): In clinical trials, participants without diabetes experienced an average weight loss of approximately 18% of their initial body weight when using the highest dose (15 mg) once weekly.

  • Wegovy (Semaglutide): Studies have shown that individuals using Wegovy achieved an average weight loss of about 15% to 18% of their initial body weight over 68 weeks. ​