Why Does Orlistat Cause Diarrhea? UK Weight Loss Help

pricing for mounjaro and wegovy weight loss

Understanding why orlistat causes digestive side effects can help you manage your prescription weight loss treatment more effectively. Orlistat works by blocking approximately one third of dietary fat absorption, and undigested fat naturally passes through your system, often causing loose stools or diarrhea. This is actually a sign the medication is working. At EverydayMeds, our UK-licensed prescribers can help determine if orlistat 120mg is suitable for your weight management goals. Generic orlistat starts from just £15.20 for 2 weeks with code EDM10 (10% off). Complete our online assessment today for fast, discreet delivery across the UK.

  • UK-licensed prescribers assess your suitability for orlistat treatment
  • Generic orlistat 120mg from £15.20 - significant savings vs branded Xenical
  • Expert guidance on managing side effects and optimising treatment
  • Next day delivery with 10% off every order using code EDM10
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pricing for mounjaro and wegovy weight loss

*Pricing shown in some areas of this page may not be up to date. Please refer to the “Our Pricing Table” or the price shown after your consultation for the latest live pricing.

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Prescription Orlistat Treatment from £15.20

Why Orlistat Causes Digestive Side Effects

Orlistat works by inhibiting lipase enzymes in your digestive system, preventing approximately one third of dietary fat from being absorbed. This unabsorbed fat must leave your body naturally, which commonly causes oily stools, loose bowel movements, or diarrhea. These gastrointestinal effects are directly related to your fat intake - the more fat you consume, the more pronounced the side effects become. This is why orlistat must always be used alongside a reduced-calorie, lower-fat diet.

Managing Orlistat Side Effects Effectively

The key to minimising digestive side effects is keeping your fat intake low - approximately 15g per meal or 30% of daily calories from fat. When you follow a lower-fat diet, side effects typically become much more manageable. Most patients find that symptoms reduce over the first few weeks as they adapt their eating habits. Taking a multivitamin at bedtime (2 hours after your last orlistat dose) helps prevent deficiency in fat-soluble vitamins.

Orlistat 120mg Prescription Options

EverydayMeds offers both generic orlistat 120mg and branded Xenical 120mg, both containing the same active ingredient at identical doses. Generic orlistat provides excellent value at £32.99 for 4 weeks (£29.69 with EDM10), while Xenical costs £42.99 for 4 weeks (£38.69 with EDM10). Following an online clinical assessment by our UK-licensed prescribers, we can determine which option may be most suitable for your weight management needs.

Professional Support Throughout Treatment

Our qualified prescribers provide comprehensive guidance on using orlistat effectively while minimising side effects. The online consultation process reviews your medical history, current medications, and weight management goals to ensure orlistat treatment is clinically appropriate. All medication is dispensed by our GPhC-registered pharmacy in Leicester and delivered discreetly across the UK with next day delivery options available.

Start Your Weight Loss Journey Today

Prescription orlistat may help support your weight management when used alongside a structured diet and exercise programme. With 10% off every order using code EDM10, treatment starts from just £15.20 for a 2-week supply. Complete our confidential online assessment to speak with a UK-licensed prescriber about whether orlistat could be right for you.

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