Understanding Orlistat Complications Before Treatment
Common Orlistat Side Effects and Management
Like all prescription medicines, orlistat may cause side effects, particularly gastrointestinal complications. Most side effects are directly related to dietary fat intake - the more fat consumed per meal, the more likely complications become. Very common side effects (affecting more than 1 in 10 people) include oily or fatty stools, urgent bowel movements, and abdominal discomfort. These effects indicate the medication is working by preventing approximately one third of dietary fat absorption.
Minimising Orlistat Complications Through Diet
The most effective way to reduce orlistat complications is maintaining a low-fat diet with no more than 15g fat per meal. This approach significantly reduces gastrointestinal side effects whilst maximising the weight management benefits. Our prescribers provide comprehensive dietary guidance alongside your prescription, whether you choose generic orlistat 120mg (£32.99 for 4 weeks), branded Xenical (£42.99 for 4 weeks), or lower-strength Alli 60mg (£28.99 for 4 weeks).
When to Seek Medical Advice
Whilst most orlistat side effects are manageable, certain complications require immediate medical attention. Contact your healthcare provider if you experience severe abdominal pain, signs of liver problems (yellowing of skin or eyes, dark urine), or symptoms of serious allergic reaction. Persistent or severe gastrointestinal side effects that don't improve with dietary modifications should also be discussed with your prescriber.
Drug Interactions and Contraindications
Orlistat complications can include interactions with certain medications. Patients taking warfarin, ciclosporin, or anticonvulsants require careful monitoring. Thyroid medication (levothyroxine) should be taken at least 4 hours apart from orlistat doses. Our online consultation thoroughly reviews your current medications to identify potential interactions before prescribing. All 120mg orlistat products require prescription following clinical assessment.
Long-term Considerations
Extended orlistat use may affect fat-soluble vitamin absorption (A, D, E, K), making daily multivitamin supplementation recommended. Take vitamins at bedtime, at least 2 hours after your last orlistat dose. Regular monitoring helps identify any nutritional deficiencies early. Our 12-week supplies (orlistat £95.99, Xenical £128.99) include ongoing clinical support throughout treatment.
Starting Your Prescription Weight Loss Journey
Complete our online clinical assessment to determine your suitability for orlistat treatment. Our UK-licensed prescribers review your health history, current medications, and weight management goals. Save 10% on every order with code EDM10 - applicable to new and returning customers. Next-day delivery available across the UK from our GPhC-registered Leicester pharmacy.


