Orlistat

Generic orlistat 120 mg capsules contain exactly the same active ingredient as the branded medicine Xenical. They are a prescription‑only weight‑loss treatment licensed in the UK for adults with: A body mass index (BMI) of 30 kg/m² or more (obesity), or A BMI of 28 kg/m² or more who have a weight‑related condition such as type 2 diabetes, high blood pressure, or high cholesterol. Like Xenical, generic orlistat capsules are used alongside a mildly reduced‑calorie, lower‑fat diet and increased physical activity. Because they are medically equivalent but usually more affordable, many people searching "buy orlistat online UK" specifically look for the generic version. Access Doctor offers generic orlistat 120 mg as a private prescription option after an online consultation.

Orlistat is a lipase inhibitor. It works in your stomach and small intestine by attaching to the enzymes that break down dietary fat. This blocks about one‑third of the fat from your meals from being absorbed. The unabsorbed fat is then excreted naturally in your stools. Because fewer fat calories enter your body, a consistent calorie deficit is easier to achieve when you stick to a lower‑fat eating plan. Orlistat does not suppress appetite, affect your brain, or speed up metabolism — it works only on fat absorption in the gut.

This is one of the most common questions asked when searching "orlistat vs Xenical" or "Alli vs orlistat". Generic Orlistat 120 mg vs Xenical 120 mg vs Alli (orlistat 60 mg): Active ingredient: All contain orlistat. Generic orlistat and Xenical are both 120 mg; Alli is 60 mg. Status: Generic orlistat and Xenical are both prescription‑only (POM); Alli is an over‑the‑counter pharmacy medicine (P). Bioequivalence: Generic orlistat is medically identical to Xenical (the branded reference product). Alli is half the dose of prescription strength. Typical monthly cost: Generic orlistat is usually lower (£34–£50/mo); Xenical is branded and typically higher (£39–£65/mo); Alli is lower cost but half strength. Generic orlistat capsules are required by UK law to meet the same quality, safety, and efficacy standards as Xenical. Choosing the generic version simply offers a more cost‑effective treatment without sacrificing effectiveness.

The standard orlistat dosage is one 120 mg capsule taken with water three times a day, immediately before, during, or up to one hour after each main meal that contains fat. If a meal is entirely fat‑free or you miss a meal, that dose should be skipped. Taking more than the recommended dose provides no additional weight‑loss benefit. For best results, dietary fat should provide no more than 30% of your daily calories, spread across your three main meals. Your Access Doctor prescriber will explain exactly how to follow this eating pattern safely.

Because orlistat blocks fat absorption, the most frequently reported orlistat side effects are digestive and become more noticeable if you eat a meal high in fat: Oily or fatty stools Sudden or more frequent bowel movements Loose stools or diarrhoea Flatulence, sometimes with oily spotting Stomach (abdominal) pain or discomfort These effects are a direct consequence of how the medicine works. They are usually mild to moderate and often improve with time as dietary fat is kept within the recommended limits. They can also act as a feedback tool, helping you identify and adjust high‑fat eating habits.

Yes. Orlistat is not suitable for everyone. You should not take it if you: Have chronic malabsorption syndrome (trouble absorbing nutrients) Have cholestasis (a condition where bile flow from the liver is blocked) Are allergic to orlistat or any of the capsule ingredients Are breastfeeding Other important safety information: Fat‑soluble vitamins: Orlistat can reduce absorption of vitamins A, D, E, and K. Your prescriber may advise taking a multivitamin supplement at bedtime. Oral contraceptives: Severe diarrhoea can reduce the effectiveness of the pill. Use additional barrier contraception (condoms) if you experience diarrhoea. Thyroid medication and warfarin: Orlistat may affect how your body absorbs levothyroxine and anticoagulants. Monitoring may be needed. Rectal bleeding: Rare cases have been reported; tell your prescriber if this occurs. Your Access Doctor online consultation includes a full health review to check that orlistat capsules are appropriate for you.

Generic orlistat 120 mg capsules are a prescription‑only medicine, so you cannot buy them over the counter. You need a valid private prescription from a UK‑registered prescriber. Many people search "orlistat cost UK" or "buy orlistat online UK" to compare prices. At UK online pharmacies, a month's supply (84 capsules) typically costs between £34 and £50, making the generic version one of the most affordable prescription weight‑loss options. At Access Doctor, your price is shown clearly during your online consultation, and the medicine is dispatched by discreet home delivery. There are no hidden fees.

Take one 120 mg capsule with water just before, during, or up to one hour after each main meal that contains fat. Space your three daily meals evenly, and aim to get about 30% of calories from fat. If you skip a meal or eat a completely fat‑free meal, miss that dose. Do not exceed three capsules in any 24‑hour period. A supplement containing fat‑soluble vitamins (A, D, E, and K) may be recommended and should be taken at least 2 hours before or after orlistat, usually at bedtime. Access Doctor provides full guidance on how to use orlistat capsules correctly as part of your treatment plan.

Orlistat begins blocking fat within the first day or two of use. In clinical trials, meaningful orlistat weight loss results were typically seen within 12 weeks of starting treatment. According to its licence, if you have not lost at least 5% of your initial body weight by 12 weeks, treatment should be stopped after consulting your prescriber. Regular reviews with your Access Doctor clinician will help track your progress and determine whether continuing with orlistat is the right choice.

Yes. Orlistat is licensed for weight management in adults with a BMI of 28 kg/m² or more and a weight‑related condition, which includes type 2 diabetes. Clinical studies show that, alongside weight loss, orlistat can produce modest improvements in blood glucose control. However, weight loss on orlistat is often slightly less in people with diabetes than in those without. Your Access Doctor prescriber will ensure that your diabetes management is reviewed alongside your weight‑loss treatment.

NHS orlistat can be prescribed for people who meet the same criteria as the private licence: BMI ≥30, or BMI ≥28 with a weight‑related health condition. Treatment should be assessed after 12 weeks; if 5% weight loss has not been achieved, it should be stopped. In practice, access to NHS weight‑management services can involve long waiting times. If you do not qualify for NHS treatment, or simply want a faster and more convenient route, Access Doctor provides private online prescriptions following a clinical review by a UK‑registered prescriber. This allows you to start your treatment without delay.

Orlistat's fat‑blocking effect stops within 48–72 hours of your last dose. If you return to eating a high‑fat diet without the medicine, the full calorie content of dietary fat will be absorbed again, and gradual weight regain is possible. Orlistat is most effective when used as part of a long‑term commitment to healthier eating. If you are considering stopping, speak to your Access Doctor prescriber about a maintenance plan to help you sustain your weight‑loss achievements.