Weight loss injections & tablets
Buy safe & supported weight loss treatments and increase your chance of sustained weight loss. Achieve up to a 20% reduction in bodyweight*. Start the journey to a healthier (and lighter) you.
Weight loss service
GLP-1/GIP
Prices from
£69
Manufacturer-sourced medications
Free Tracked 24 delivery
Clinical experts & monthly check-ins
No hidden fees (pay-as-you-go)
Weight loss treatment options
Buy our ground-breaking weight loss injections & pills that have been scientifically proven to boost your weight loss when used in combination with lifestyle & dietary adjustments. We offer a price match scheme on GLP-1 medication to help keep your costs down whilst still getting access to our treatments and clinical support.
Weight loss injectables
20.7% weight loss
0.25mg - 7.2mg
Wegovy FlexTouch Pen
Weight Loss | GLP-1 | Semaglutide
A self-injectable, at-home weight loss pen with Semaglutide as the active ingredient, this pen is designed to aid weight loss when injected weekly and consistently.
from
£69
20% weight loss
2.5mg - 15mg
Mounjaro KwikPen
Weight Loss | GLP-1 & GIP | Tirzepatide
A self-injectable weight loss pen with Tirzepatide as the active ingredient, this at-home pen helps reduce hunger pangs and suppress appetite, helping you to lose weight.
from
£139
Weight loss tablets
Up to 16.6% weight loss
Wegovy Tablets - From £79
Semaglutide
|
Oral tablet
Wegovy tablets contain semaglutide and work by mimicking a natural hormone that signals to your brain when you're full, helping to reduce appetite and how much you eat.
Find out more
Up to 12.4% weight loss
Foundayo - From £79
Orforglipron
|
Oral tablet
Foundayo (Orforglipron) is a next-generation oral GLP-1 medicine. Unlike semaglutide, it is a small molecule that does not require the same food and water restrictions when taken.
Find out more
Up to 8% weight loss
Orlistat - From £69
Orlistat
|
Daily capsule
Orlistat is a capsule for weight loss that reduces the amount of dietary fat absorbed and can help lower overall body fat by up to 8%.
Find out more
Glucomannan - From £79
Daily capsule
Glucomannan is a plant-based fibre supplement clinically recognised to support weight management when taken alongside a calorie-controlled diet. Glucomannan capsules combine konjac-derived fibre with chromium and green tea extract to help reduce appetite and support healthy, steady progress.
Find out more
How weight loss injections work
Weight loss injections work by mimicking hormones your body naturally produces after eating. These hormones signal to your brain that you are full, slow the rate at which your stomach empties, and help reduce appetite between meals. The result is that you eat less, feel satisfied sooner, and experience fewer food cravings throughout the day.
The medications Phlo Clinic prescribes target one or two of these hormone pathways:
GLP-1 (glucagon-like peptide-1): A hormone released in the gut after eating. It suppresses appetite, slows gastric emptying, and helps regulate blood glucose levels. Wegovy (semaglutide) mimics GLP-1.
GIP (glucose-dependent insulinotropic polypeptide): A second gut hormone that enhances the effects of GLP-1, improves how the body processes fat and sugar, and is thought to increase the overall weight loss effect. Mounjaro (tirzepatide) mimics both GLP-1 and GIP, making it a dual agonist.
Lipase inhibition: Orlistat works differently. Rather than affecting appetite hormones, it blocks the enzymes that break down dietary fat in the gut, meaning your body absorbs roughly a third less fat from each meal.
All three mechanisms are supported by extensive clinical trial data and are approved for use in the UK by the Medicines and Healthcare products Regulatory Agency (MHRA).
Why choose Phlo Clinic
for weight loss treatment?
What's included with your order
FREE Royal Mail Tracked 24 delivery (temperature-controlled)
Everything you need to get started with your first delivery, including sharps bin, welcome booklet and guide
Access to recipes, webinars, nutrition guide – all from our Obesity Specialist Dietitian
Up to 20.7% weight loss
Thinking about switching from Mounjaro to Wegovy?
Transitioning from Mounjaro to Wegovy can be safe and manageable with the right guidance. Our expert clinical team and pharmacists are here to support you every step of the way.
From £69
More about switching to Wegovy
Weight loss medication comparison
Mounjaro
Wegovy
Orlistat
Ozempic
(not licensed
for weight loss)
(not licensed
for weight loss)
Active ingredient
How to take
How often to take it
Supply provided
Class of drug
What does it do?
Initial price
Prescription only?
Available in the UK?
Supplied by
Phlo Clinic?
Delivery costs
Tirzepatide
Kwikpen injection
Once a week
4-week supply
GLP-1, GIP
Curb appetite and reduce cravings
£139
Yes
Yes
Yes
Free delivery
Semaglutide
FlexTouch injection
Once a week
4-week supply
GLP-1
Curb appetite and reduce cravings
£69
Yes
Yes
Yes
Free delivery
Orlistat
Oral capsule
capsule, 3x a day
4-week supply
–
Stop absorbing as much fat in foods and reduce caloric intake
£69
Yes
Yes
Yes
Free delivery
Semaglutide
Weekly injection
Once a week
4-week supply
GLP-1
Helps the body make more insulin and lowers blood sugar levels
N/A
Yes
Yes
No
N/A
How does each weight loss treatment compare?
Navigating the landscape of weight loss medication can be complex. Phlo Clinic offers three primary, manufacturer-sourced treatments: Wegovy, Mounjaro, and Orlistat. Each operates through a different mechanism to support your goals.
We provide a price match scheme on GLP-1 medications to ensure accessibility. This allows you to benefit from competitive pricing while retaining access to our fully managed clinical service, monthly check-ins, and free tracked delivery.
Wegovy (Semaglutide)
Wegovy is a leading GLP-1 receptor agonist that has transformed medical weight management. The active ingredient, semaglutide, mimics a natural hormone that targets areas of the brain involved in regulating appetite and food intake.
Key facts:
Format:
Weekly self-injection via the FlexTouch pen
Efficacy:
Clinical trials show up to 20.7% weight loss
Dosage:
Titrated from 0.25mg to 2.4mg to manage tolerance
This medication is particularly effective for those who struggle with intense cravings. By slowing gastric emptying, it helps you feel fuller for longer, significantly reducing daily calorie intake without the sensation of deprivation.
Mounjaro (Tirzepatide)
Mounjaro represents the next generation of weight management treatments. It’s unique because it acts as a dual agonist, targeting both GLP-1 and GIP receptors. This dual action enhances the body's natural ability to regulate blood sugar levels and fat metabolism while suppressing appetite.
Key facts:
Format:
Weekly self-injection via the KwikPen
Efficacy:
Studies demonstrate up to 20% weight loss
Dosage:
Ranges from 2.5mg to 15mg
Because it targets two hormonal pathways simultaneously, Mounjaro is often considered a potent option for patients who require significant weight reduction. Like Wegovy, it is a prescription-only medicine that requires clinical oversight.
Orlistat
For patients seeking a non-injectable alternative, Orlistat offers a different approach. Instead of altering hormones or brain chemistry, Orlistat works in the digestive system. It acts as a lipase inhibitor, preventing your body from breaking down and absorbing approximately one-third of the fat from the food you eat.
Key facts:
Format:
Oral capsule taken three times daily with meals
Efficacy:
Can help reduce overall body fat by 5%
Dosage:
Blocks dietary fat absorption
Orlistat is ideal for individuals who prefer oral medication over needles and are committed to a lower-fat diet. The unabsorbed fat is naturally eliminated from the body, making dietary compliance essential for comfort and effectiveness.
Weight loss calculator
kgs
lbs
Select your current weight:
kgs
Weight you could lose:
144
kgs
*This calculator is only an example for illustrative purposes and the results are not guaranteed. Every weight loss experience is unique. This example is based on research showing weight loss of up to 20% over a 72-week period
With you at every high and low
How much weight can you lose on weight loss medication?
Studies have shown combining weight loss medications with diet and exercise can have a greater reduction in bodyweight, when monitored over the same time period.
0 - 3 months
Kickstart your journey
Start feeling less hungry
Less food noise
Noticeable weight loss progress and more energy
It can take up to 8 weeks to start feeling the effects of your medication, but it will start working in your body after the first week.
3 – 6 months
Positive changes
A noticeable reduction in bodyweight
Be more active and making healthier food choices
With Phlo Clinic, gain education on relationship with food
As your dosage increases you should see changes in your weight and your lifestyle.
6 – 12 months
Sustained weight loss
Continued weight loss
Improvements in measurable health metrics e.g. reduced blood pressure, improved cholesterol or blood glucose control
Formulate a personal comprehensive plan for long-term weight control
This is a period where you’ll see sustained weight loss and be in a consistent weight management rhythm.
With you at every high and low
What can you expect
Studies have shown combining weight loss medications with diet and exercise can have a greater reduction in bodyweight, when monitored over the same time period.
0 - 3 months
Kickstart your journey
Start feeling less hungry
Notice increased energy levels
Redefine your relationship with food
Read more
3 – 6 months
Positive changes
See a reduction in your bodyweight
Feel more in control of your appetite
Be more active and making healthier food choices
Read more
6 – 12 months
Sustained weight loss
Continued weight loss and more energy
Improvements to your metabolic health and any weight-related health conditions
Define a long-term weight management plan
Read more
Real customer weight loss stories
Share in the weight loss experiences of Phlo Clinic patients just like you and why they trust us to help achieve their goals.
Your safe & supported weight loss journey
Our approach to weight loss treatments is based on three core factors - designed with you and your long-term health as our priority.
Who is eligible for weight loss injections
You are aged between 18 and 85
You have a BMI above 30 or have a BMI above 27 and a weight-related accompanying condition
(e.g. high blood pressure or cholesterol amongst others)
If you’re already on GLP-1 medication and switch to Phlo Clinic, we require a BMI of above 23 with supporting evidence
Supply photographic evidence to verify your consultation.
Meet all other clinical criteria subject to your medical history and GP records.
During the consultation stage we’ll ask you for more specific information to help you find the right treatment.
BMI criteria for
weight loss injections
Prescription weight loss treatments are not suitable for everyone. Eligibility is assessed on the basis of your BMI and any weight-related health conditions, alongside a review of your full medical history and current medications.
Weight-related conditions that may lower the BMI threshold include high blood pressure, type 2 diabetes, high cholesterol, obstructive sleep apnoea, and cardiovascular disease.
Other eligibility
requirements
In addition to the BMI criteria laid out above, to be considered for any prescription weight loss treatment through Phlo Clinic, you must also:
Be aged 18 or over
Not be pregnant or breastfeeding
Have no known allergy to the active ingredients
Not have certain contraindicated medical conditions (assessed during your consultation)
You should also disclose to your prescribing pharmacist if you have a history of any other medical conditions, such as pancreatitis or eating disorders.
Weight loss advice
Got weight loss questions?
Get weight loss answers.
Find out what you need to know about how our weight loss service works. From ordering to payments and everything in between - read the latest from our specialists.
Visit advice hub
Is it time to order your next treatment?
Tap the re-order button to access your Phlo Clinic account and complete your re-order consultation.
Frequently asked questions
Will I be eligible for weight loss treatment?
What are injectable weight loss medications?
How do weight loss injections work?
What weight loss medication do you offer?
Can I take weight loss treatments alongside other medications?
Are Mounjaro and Wegovy safe?
Are there side effects from taking the weight loss medication?
How to administer your weight loss injection
How do I dispose of my sharps bin?
How much do weight loss treatments cost?
How much weight can you lose?
How do I re-order my next dose?
What do weight loss injections contain?
Who checks my consultation?
What evidence do I need to provide if I’m transferring from another GLP-1 provider?
Side effects of weight loss medication
Like all prescription medications, weight loss treatments can cause side effects. Most are mild to moderate and tend to improve as your body adjusts to the medication, particularly during the dose escalation phase. Serious side effects are uncommon but should be reported to your Phlo Clinic clinical team immediately.
Common side effects by treatment
Wegovy (semaglutide):
Nausea
Vomiting
Diarrhoea
Constipation
Headache
Fatigue
Abdominal pain or discomfort
Mounjaro (tirzepatide):
Nausea
Vomiting
Diarrhoea
Constipation
Abdominal pain
Reduced appetite (beyond the intended effect)
Injection site reactions
Orlistat:
Oily or fatty stools
Increased or urgent need to use the toilet
Oily discharge
Flatulence with discharge
Abdominal discomfort
Headache
The most common side effects of GLP-1 injections (nausea, vomiting) are typically dose-dependent and most pronounced during the escalation period. You can help manage them by:
Eating smaller, more frequent meals
Avoiding high-fat, spicy, or greasy foods, particularly in the first weeks of treatment
Staying well hydrated
Resting adequately
For orlistat, the gastrointestinal side effects are directly related to fat intake. Keeping dietary fat below 30% of total calories per meal significantly reduces their occurrence.
How it works
Get started in 3 easy steps
We make it easy to get the weight loss medication that works for you! Watch Jaanki (from our weight loss clinical team) bring everything to life.
1
Quick & easy questionnaire
To make sure you can safely take your preferred treatment, complete our questionnaire which takes approx 3 mins.
2
We review
Our prescribing pharmacists review and individually assess your treatment suitability using their extensive knowledge and clinical experience.
3
We deliver
Once approved and dispensed, we’ll securely deliver your treatment anywhere you need using our free Royal Mail Tracked 24 option.
Weight loss
GLP-1/GIP
Tirzepatide
The alternative to non-reversible weight loss surgeries
Phlo Clinic
Thinking of using our weight loss service?
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Reviewed by:
Last reviewed:
April 2, 2025
Next review:
November 30, 2026