How Orlistat Works for Prescription Weight Loss
Understanding Your First Week on Orlistat
During your first week taking orlistat 120mg, the medication begins working immediately in your digestive system to block approximately one third of the fat from your meals. As a prescription-only lipase inhibitor, orlistat works locally in the gut rather than affecting your brain or nervous system. Individual responses vary, but many patients notice gastrointestinal effects within the first few days as unabsorbed fat passes naturally through the body. The key to minimising side effects during week one is maintaining a lower-fat diet with no more than 15g fat per meal.
Prescription Orlistat vs Xenical - Same Active Ingredient
Both generic orlistat 120mg (from £29.69 for 4 weeks with EDM10) and branded Xenical 120mg (from £38.69 for 4 weeks with EDM10) contain identical active ingredients at the same dose. The clinical effect is the same - blocking approximately one third of dietary fat absorption to support weight management alongside a reduced-calorie, lower-fat diet. Many patients choose generic orlistat for better value, saving around £9 per month compared to Xenical while receiving the same prescription weight loss support.
Your Online Prescription Process
Getting your prescription orlistat couldn't be simpler. Complete our online health questionnaire covering your medical history, current medications and BMI information. A UK-licensed prescriber reviews your assessment and, where clinically appropriate, issues your prescription. Our GPhC-registered pharmacy in Leicester then dispenses and dispatches your medication with tracked, discreet delivery. The entire process typically takes 24-48 hours from assessment to delivery, with prescription costs included in our competitive pricing.
Maximising Results with Lower-Fat Diet
Orlistat works most effectively when combined with a structured lower-fat, reduced-calorie diet and increased physical activity. During your first week, focus on spreading your daily fat intake evenly across three main meals, keeping each meal to approximately 15g fat or less. This approach not only supports the medication's weight management benefits but also significantly reduces the likelihood of gastrointestinal side effects. Consider taking a daily multivitamin at bedtime, as orlistat may reduce absorption of fat-soluble vitamins A, D, E and K.
Competitive Pricing with EDM10 Discount
Our prescription orlistat pricing starts from just £15.20 for a 2-week supply (42 capsules) with code EDM10. Longer treatment periods offer better value - our 12-week supply costs £86.39 with the discount code, providing comprehensive support for your weight management journey. For patients preferring branded medication, Xenical 120mg is available from £19.35 for 2 weeks with EDM10. All orders qualify for our 10% discount code EDM10, available to both new and returning customers with free next day delivery across the UK.


