Choose Your Prescription Weight Loss Treatment
Alli Weight Loss Drug - Prescription Options Available
Orlistat is a prescription weight loss medication that works by blocking approximately one third of dietary fat absorption. Available as generic orlistat 120mg (prescription-only), branded Xenical 120mg (prescription-only), and alli 60mg, each option may help support weight management when used alongside a reduced-calorie, lower-fat diet and increased physical activity.
How Prescription Weight Loss Treatment Works
Orlistat works locally in your digestive system by inhibiting lipase enzymes responsible for breaking down dietary fat. This means approximately one third of the fat you eat cannot be absorbed and passes naturally through your body. The treatment is designed to support weight reduction as part of a structured programme including dietary changes and regular exercise.
Treatment Options and Pricing
Generic orlistat 120mg offers the most cost-effective option at £32.99 for 4 weeks (£29.69 with EDM10). Xenical 120mg provides the branded alternative at £42.99 for 4 weeks (£38.69 with EDM10). Alli 60mg offers a lower-strength option at £54.99 for 8 weeks (£49.49 with EDM10). All treatments require clinical assessment by our UK-licensed prescribers to determine suitability.
Who May Be Suitable for Treatment
Prescription weight loss treatment with orlistat may be suitable for adults with a BMI of 30 or above, or BMI of 28 or above with weight-related health conditions such as type 2 diabetes or high blood pressure. Suitability is determined through individual clinical assessment, and treatment must always be used alongside a reduced-calorie, lower-fat diet and increased physical activity.
Online Prescription Process
Complete our online health questionnaire which is reviewed by a qualified UK-licensed prescriber. If treatment is clinically appropriate, your prescription will be issued and dispensed by our GPhC-registered pharmacy in Leicester. We offer next day delivery across the UK with discreet, tracked packaging. The prescription consultation is included in the price - no separate GP appointment needed.
Managing Your Treatment Safely
Like all prescription medicines, orlistat may cause side effects, most commonly gastrointestinal effects linked to dietary fat intake. Keeping meals low in fat (approximately 15g per meal) significantly reduces the likelihood of side effects. A daily multivitamin supplement is recommended, taken at bedtime at least 2 hours after your last orlistat dose. Always follow guidance from your prescriber and speak to a healthcare professional if you experience any concerns.


