Expert Side Effect Guidance From UK Prescribers
Understanding Orlistat's Gastrointestinal Effects
Yes, orlistat can cause diarrhea and related bowel changes. As a GPhC-registered pharmacy, EverydayMeds provides clear, medically-accurate information about these effects. Orlistat works by blocking approximately one third of dietary fat absorption. This unabsorbed fat passes through your digestive system, commonly causing loose stools, oily discharge, and increased bowel frequency.
Why These Effects Occur
Diarrhea and similar symptoms result from orlistat's mechanism of action in the gut. When dietary fat cannot be absorbed, it moves through the intestines unchanged, leading to oily, loose stools. These effects are more pronounced with high-fat meals and typically reduce when you maintain a lower-fat diet of approximately 15g fat per meal.
Managing Side Effects Effectively
Our UK-licensed prescribers recommend keeping fat intake low to minimise gastrointestinal symptoms. Most patients find that limiting fat to 30% of daily calories, spread across three meals, significantly reduces diarrhea and oily discharge. Wearing dark underwear or a panty liner during initial treatment can provide additional confidence.
Trusted UK Pharmacy Supply
EverydayMeds supplies orlistat through our MHRA-regulated pharmacy in Leicester. Generic orlistat 120mg costs £32.99 for a 4-week supply (£29.69 with EDM10), while branded Xenical costs £42.99 (£38.69 with EDM10). Both contain identical active ingredients and cause similar side effects. Our prescribers help you choose the right option following clinical assessment.
Professional Clinical Assessment
Before prescribing orlistat, our UK-licensed healthcare professionals assess your medical history and provide personalised side effect management advice. This includes guidance on diet modification, symptom duration expectations, and when to seek further medical advice. Your prescription is dispensed by our GPhC-registered pharmacy and delivered discreetly nationwide.
When to Seek Medical Advice
While gastrointestinal effects are common, seek immediate medical attention for severe abdominal pain, signs of liver problems (dark urine, yellowing skin), or persistent severe symptoms. Our prescribers provide ongoing support throughout your treatment journey, ensuring safe and effective medication use.
