Alli 60mg 168 Capsules
Alli 60mg 168 Capsules Product information
£79.99 (£0.48 per capsules)
| 60mg | |
|---|---|
| 84 capsules | £39.98 |
| 168 capsules | £79.99 |
| 252 capsules | £109.99 |
| 336 capsules | £159.98 |
| 420 capsules | £199.99 |
| 504 capsules | £239.99 |
Buy Alli Online in the UK
Alli slimming tablets contain 60mg of the medicine Orlistat, the same active ingredient found in prescription Orlistat but at half the strength. It is available without a prescription following a pharmacist consultation and is suitable for adults with a BMI of 28 or above (9).
You should take one 60mg Alli pill with each fat-containing meal, up to three times per day. They can be taken immediately before, during, or up to one hour after eating, and should be used alongside a reduced-calorie, lower-fat diet and regular exercise to support steady weight loss.
You can buy Alli online from Oxford Online Pharmacy. A doctor's consultation isn't required, but we will need you to answer a few simple questions to make sure it’s the right medication for you.
If Alli slimming pills aren’t suitable for you, our pharmacists may recommend a more appropriate weight loss treatment, including other oral weight loss tablets or injectable treatments.
Product Information for Alli 60mg 168 Capsules
How do Alli weight loss pills work?
The active ingredient in Alli weight control capsules is Orlistat, which works by blocking digestive enzymes known as lipases. These enzymes are produced by the stomach and by the pancreas and break the fat you eat so that it can be absorbed by the body.
By blocking lipases, Alli prevents around 25% of the fat you eat from being absorbed (11). Instead, the fat passes straight through the digestive system and out in your stools, resulting in reduced calorie intake. Over time, this can support weight loss, but you’ll get the best results from Orlistat when taking Alli alongside a healthy, balanced diet and regular physical activity.
Unlike weight loss injections such as Wegovy or Mounjaro, Alli fat loss pills don’t reduce your appetite. Their effects are entirely due to reducing the amount of dietary fat your body absorbs.
Who is suitable for Alli capsules?
Alli diet pills are suitable for adults aged 18 or over who are overweight and have a BMI of 28 or more. If you’re unsure of your BMI, you can use this free NHS BMI calculator to work it out.
Although Alli is available over the counter without a prescription from a doctor, you will need to speak to a pharmacist before buying Alli so that they can make sure it’s suitable for you. When using our online service, this suitability check is a simple online questionnaire our pharmacists can review.
If Alli isn’t suitable for you, we can recommend an alternative weight loss treatment if appropriate.
Who cannot take Alli capsules?
Alli tablets are not suitable for children or adolescents under 18 or for anyone with a BMI of below 28 (10). You should also not take Alli for weight loss in the UK if you:
Are pregnant, trying to become pregnant or breastfeeding
Are allergic to Orlistat or any of the other ingredients in Alli
Have chronic malabsorption syndrome (a condition that affects how your body absorbs nutrients)
Have cholestasis (reduced or blocked bile flow from the liver)
Are taking ciclosporin
Are taking warfarin or another anticoagulant (blood thinner), unless advised by your doctor
If you have diabetes, kidney disease, liver disease, or any other significant medical condition, let your pharmacist know during your consultation, so they can assess whether Alli is suitable for you. (10)
For a full list of contraindications, refer to the Patient Information Leaflet.
Advisory information
You should tell your pharmacist about any prescription medicines, over-the-counter medicines and supplements you take before starting treatment so that they can advise you on how to safely take them alongside Alli capsules.
Medicines you should not take with Alli
Alli diet supplements should not be taken if you are using:
Ciclosporin, a medicine used to suppress the immune system
Warfarin or other oral anticoagulants, as Alli may affect blood clotting control
If you take either of these medicines, speak to your doctor or pharmacist about alternative weight loss treatments.
Medicines that require extra guidance
Because Alli works by blocking the absorption of some dietary fat, it can also affect how other medicines are absorbed, which may make them less effective. Particular care is needed if you take:
Levothyroxine
Amiodarone
Medicines for epilepsy
HIV treatments
Medicines for diabetes or high blood pressure (10)
Your pharmacist may advise you to separate doses, speak to a doctor before starting treatment, or recommend an alternative, more suitable option.
The contraceptive pill
Alli does not directly reduce the effectiveness of oral contraception (10). However, if you experience severe diarrhoea, your pill may not be absorbed properly. Follow the instructions in your contraceptive pill's patient information leaflet and consider using additional contraception if advised.
Vitamin supplementation
Because Alli diet pills reduce the absorption of fat, they can also reduce the absorption of the fat-soluble vitamins, including vitamin A, D, E and K.
For this reason, taking a daily multivitamin is recommended while using Alli. Your vitamin supplement should be taken at bedtime or at least two hours before or after taking an Alli capsule to avoid affecting its absorption.
Alternatives to Alli weight loss capsules
If Alli pills are not suitable for you, our pharmacists may recommend another weight loss treatment.
There are several clinically proven weight loss medications available in the UK. Alli (and Orlos, another 60mg Orlistat capsule) are the only non-prescription treatments you can buy over the counter. All others will require a prescription from a doctor, but you can still buy them online from Oxford Online Pharmacy after completing an online consultation and have your prescription delivered to your door.
Below are the main alternatives to Alli slimming tablets:
Prescription Orlistat pills contain the same medicine as Alli capsules and work in the same way but come in a stronger 120mg dose. This stronger dose means they block more fat from being absorbed, so you may lose weight faster.
Weight loss injections like Mounjaro and Wegovy mimic hormones involved in appetite regulation to help you feel fuller for longer and think less about food. They generally produce greater weight loss than Orlistat-based treatments like Alli, but individual results vary.
Oral GLP-1 tablets like the Wegovy Pill and Eli Lilly’s new weight loss tablet Orforglipron work on the same hormone pathways as injectable treatments but come in tablet form. They generally produce more weight loss than other oral options.
Mysimba weight loss pills are an older treatment that contain Naltrexone and Bupropion. They act on areas of the brain involved in hunger and reward and can help reduce food cravings to support weight loss.
The most suitable treatment depends on factors such as your BMI, medical history, weight loss goals and personal preference. Our pharmacists can help determine whether Alli or another treatment would be most appropriate for you
Alli 60mg 168 Capsules reviews
How to use Alli 60mg 168 Capsules
The recommended dose of Alli weight loss capsules is:
One 60mg capsule to be taken up to three times daily
The capsule should be taken with water immediately before, during or up to 1 hour after each main meal that contains fat
If a meal is missed or contains no fat, the dose of Alli should be omitted
Don’t take more than three 60 mg capsules in 24 hours
Eat lower-fat meals to reduce the chance of side effects
You shouldn’t take Alli fat loss pills for more than 6 months
Looking for a stronger option?
Alli contains 60mg of Orlistat, while prescription-strength Orlistat and branded Xenical contain 120mg. Learn more about how these treatments compare in our guide to the differences between Orlistat, Xenical and Alli.
Side effects of Alli 60mg 168 Capsules
With any medication you take, there is a risk of side effects when taking Alli weight loss supplements. Some are more common than others, and often side effects may subside with the regular usage of the medicine. If the side effects do not subside, you should report them to us, or your GP.
Very common side effects:
Headache
Upper respiratory tract infection
Abdominal pain/discomfort
Urgent or increased need to open the bowels
Flatulence (wind)
Flatulence (wind) with discharge
Oily discharge
Oily or fatty stools
Liquid stools
Increased elimination of stools
Influenza (‘flu’)
Low blood sugar levels (experienced by some people with type 2 diabetes) (10)
Common side effects:
Lower respiratory tract infection
Rectal pain/discomfort
Soft stools
Faecal incontinence (inability to control your bowel movements)
Bloating (experienced by some people with type 2 diabetes)
Tooth/gum disorder
Urinary tract infection (UTI)
Irregularity of menstrual cycle
Tiredness
Anxiety (10)
For a full list of side effects of Alli slimming pills, please read the Patient Information Leaflet.
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Yes, Alli contains 60mg of the medicine Orlistat, and Orlistat is proven to work for weight loss when combined with a diet and exercise plan. In clinical trials, people taking 60mg of Orlistat lost more weight than people who only made lifestyle changes (8).
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Yes, Alli has been associated with several other health benefits:
Reduced risk of type 2 diabetes: In the four-year XENDOS study involving 3,305 people with obesity, participants taking orlistat alongside lifestyle changes were 37% less likely to develop type 2 diabetes than those following lifestyle changes alone (1).
Lower blood pressure: A 2020 review of 27 randomised controlled trials found that weight loss achieved with Orlistat was associated with reductions in blood pressure in overweight adults and adults living with obesity (2).
Better cholesterol levels: A 2017 review of 33 controlled trials found that Orlistat can help lower LDL ("bad") cholesterol and total cholesterol levels, with greater improvements generally seen in people who achieved more weight loss (3).
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Ideally, a 3-month trial is recommended. At the end of this period, a 5% reduction in weight would be considered a successful result. If this is not achieved then it may be worth considering if continuation of treatment is beneficial, by weighing up the side effects and any potential risks.
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Alli is designed to support gradual weight loss. If you’ve taken the medication for 2 weeks and are disappointed you haven’t seen results yet, it’s important to stay consistent.
In clinical trials, people taking Alli alongside a reduced-calorie diet began to lose more weight than those following diet and lifestyle changes alone after around 2 weeks (8). However, weight loss varies between individuals, and treatment is usually assessed after 12 weeks.
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No, Alli is not as effective as weight loss injections like Mounjaro and Wegovy.
In clinical trials, people taking the highest maintenance dose of Mounjaro lost an average of 20.9% of their starting body weight after 72 weeks (6). Wegovy 2.4mg led to an average weight loss of around 15% over 68 weeks of treatment, while the new 7.2mg dose of Wegovy suitable for some patients caused greater average weight loss of 18.7% of starting weight (4,5).
In comparison, average weight loss with Alli is around 5% of starting body weight on average (7). Of course, these are trial average and individual results will vary, but weight loss injections are more effective than Alli and other Orlistat-based treatments.
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No, Alli capsules should not be taken alongside other weight loss medications. Combining weight loss treatments has not been shown to improve results and may increase the risk of side effects or drug interactions. To get the best results from Alli, always take it as directed alongside a reduced-calorie lower-fat diet and regular exercise.
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No, Alli weight loss pills are not a substitute for healthy lifestyle habits. They help support weight loss by making it easier to be in calorie deficit, but a diet and exercise programme should be started before treatment with Alli and continue once treatment has stopped.
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Alli will reduce the amount of fat your body absorbs even if you overeat. However, you will only lose weight if you are in a calorie deficit. If you regularly eat more calories than you need, it may not lead to weight loss even though Alli is still working correctly in the body.
Eating high-fat meals while taking Alli diet pills can also make side effects like oily stools or urgently needing to go to the bathroom worse. For best results and fewer side effects, follow our 'What to eat on Orlistat' practical guide.
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You can drink whilst taking Alli slimming tablets, as there is no known interaction between alcohol and the medication Orlistat. But it is best to drink alcohol in moderation. Alcoholic drinks can be high in calories, so regular heavy drinking can make it harder to lose weight.
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Alli pills should be stored at room temperature (not above 25°C) in their original packaging to protect the capsules from moisture. Keep the bottle containing the tablets tightly closed, out of the sight and reach of children, and don’t use it after the expiry date has passed.
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Alli slimming tablets can be taken for up to 6 months, unless a healthcare professional recommends continuing treatment for longer (10). Your progress is usually reviewed after 12 weeks (3 months). If you have lost at least 5% of your starting weight by the time of your review, you can continue with treatment (9).
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Alli and Orlistat pills both contain the medicine Orlistat, work by partially blocking fat absorption, and can be taken up to three times daily with each fat-containing meal. The main difference is strength, which affects how much fat block from being absorbed.
Alli contains 60mg Orlistat, which blocks around 25% of the fat you eat from entering the bloodstream (11). Prescription Orlistat contains 120mg of the active ingredient, blocking 30% of dietary fat absorption (12). Because Orlistat is stronger than Alli, it is only available with a prescription and usually prescribed to people with a BMI of 30+, compared to a BMI of 28+ for Alli(13, 9).
The best option for you depends on your starting BMI, weight loss goals, and whether you are suitable for prescription treatment.
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There are several alternative weight loss treatments in the UK.
Prescription Orlistat contains the same active ingredient at a higher strength, while Mysimba helps reduce appetite and food cravings. GLP-1 medicines, including Mounjaro and Wegovy injections, as well as the new Wegovy tablet, work differently by helping you feel fuller for longer and generally produce greater average weight loss than Alli.
During your online consultation, our pharmacists can recommend the most appropriate treatment based on your health history, target weight, and personal preferences.
Torgerson JS, Hauptman J, Boldrin MN, Sjostrom L. XENical in the Prevention of Diabetes in Obese Subjects (XENDOS) Study: A randomized study of orlistat as an adjunct to lifestyle changes for the prevention of type 2 diabetes in obese patients. Diabetes Care. 2003 Dec 23;27(1):155–61.
Sahebkar A, Simental-Mendía LE, Kovanen PT, Pedone C, Simental-Mendía M, Cicero AFG. Effects of orlistat on blood pressure: a systematic review and meta-analysis of 27 randomized controlled clinical trials. Journal of the American Society of Hypertension. 2018 Feb;12(2):80–96.
Sahebkar A, Simental-Mendía LE, Reiner Ž, Kovanen PT, Simental-Mendía M, Bianconi V, et al. Effect of orlistat on plasma lipids and body weight: A systematic review and meta-analysis of 33 randomized controlled trials. Pharmacological Research [Internet]. 2017 Aug [cited 2026 Aug 2];122:53–65.
Wilding JPH, Batterham RL, Calanna S. Once-Weekly Semaglutide in Adults with Overweight or Obesity. The New England Journal of Medicine [Internet]. 2021 Feb 10 [cited 2026 Aug 2];384(11):989–1002.
Wharton S, Freitas P, Jøran Hjelmesæth, Kabisch M, Kandler K, Ildiko Lingvay, et al. Once-weekly semaglutide 7·2 mg in adults with obesity (STEP UP): a randomised, controlled, phase 3b trial. The Lancet Diabetes & Endocrinology [Internet]. 2025 Sept 1 [cited 2026 Aug 2];.
Jastreboff AM, Aronne LJ, Ahmad NN, Wharton S, Connery L, Alves B, et al. Tirzepatide Once Weekly for the Treatment of Obesity. New England Journal of Medicine [Internet]. 2022 June 4 [cited 2026 Aug 2];387(3):205–16.
Anderson JW. Orlistat for the management of overweight individuals and obesity: a review of potential for the 60-mg, over-the-counter dosage. Expert Opinion on Pharmacotherapy [Internet]. 2007 Aug 1 [cited 2026 Aug 2];8(11):1733–42.
Anderson JW, Schwartz SM, Hauptman J, Boldrin M, Rossi M, Bansal V, et al. Obesity: Low-Dose Orlistat Effects on Body Weight of Mildly to Moderately Overweight Individuals: A 16 Week, Double-Blind, Placebo-Controlled Trial. Annals of Pharmacotherapy. 2006 Oct;40(10):1717–23.
Alli 60 mg hard capsules - Summary of Product Characteristics (SmPC) - (emc) | 6533 [Internet]. Medicines.org.uk. 2025 [cited 2026 Aug 2].
Alli 60 mg hard capsules - Patient Information Leaflet (PIL) - (emc) [Internet]. www.medicines.org.uk. [cited 2026 Aug 2].
How alli® Works [Internet]. www.myalli.com. [cited 2026 Aug 2].
Guerciolini R. Mode of action of orlistat. International Journal of Obesity and Related Metabolic Disorders [Internet]. 1997 Jun [cited 2026 Aug 14];21(Suppl 3):S12–23.
Xenical 120 mg hard capsules - Summary of Product Characteristics (SmPC) - (emc) | 2592 [Internet]. Medicines.org.uk. 2023 [cited 2026 Aug 14].
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Authored on August 13, 2026
Robert Bradshaw (Pharmacist) — MRPharms BSc(Hons) Pharmacy
Superintendent Pharmacist
GPhC Number: 2036118
Reviewed on August 14, 2026