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Can Orlistat Cause Constipation? Understanding the Facts
While orlistat is known for gastrointestinal side effects, constipation is not typically listed among the most common reactions. Orlistat works by blocking approximately one third of dietary fat absorption, leading to fatty or oily stools rather than constipation. However, individual responses vary, and some patients may experience changes in bowel habits including constipation, particularly when significantly reducing dietary fat intake or making dramatic dietary changes alongside treatment.
Why Choose Private Prescription Over NHS?
Skip NHS waiting lists and get faster access to orlistat through our private prescription service. Our UK-licensed prescribers can assess your suitability within 24 hours, compared to potentially weeks for a GP appointment. Generic orlistat 120mg starts from just £29.69 for 4 weeks (with EDM10), while branded Xenical costs £38.69 for the same period. All prescriptions include clinical assessment, prescriber review, and dispensing by our GPhC-registered pharmacy in Leicester.
Orlistat Side Effects: What to Expect
The most common side effects of orlistat are gastrointestinal and include oily stools, increased bowel movement frequency, and urgent need to use the toilet. These effects are directly related to the medication's mechanism of blocking dietary fat absorption. If you experience constipation while taking orlistat, this may be related to dietary changes rather than the medication itself. Always consult your prescriber if side effects are persistent or concerning.
Complete Range Available Through Private Prescription
We offer three orlistat options: generic orlistat 120mg (£15.20-£86.39 with EDM10), branded Xenical 120mg (£19.35-£116.09 with EDM10), and lower-strength Alli 60mg (£26.09-£116.99 with EDM10). All contain the same active ingredient that blocks approximately one third of dietary fat when used alongside a reduced-calorie, lower-fat diet. Your prescriber will recommend the most suitable option based on your clinical assessment.
Fast, Regulated Online Process
Complete our online health questionnaire covering your medical history, current medications, and BMI information. A qualified UK-licensed prescriber reviews your submission and issues a prescription if clinically appropriate. Your medication is then dispensed by our GPhC-registered pharmacy and dispatched with tracked, next-day delivery across the UK. The entire process typically takes 24-48 hours from submission to delivery.
Managing Digestive Changes on Orlistat
To minimise gastrointestinal side effects, keep meals low in fat (approximately 15g fat per meal). This significantly reduces the likelihood of unwanted digestive symptoms. If constipation occurs, ensure adequate fluid intake and speak to your prescriber about appropriate management. Remember, orlistat works best when combined with a structured weight management programme including dietary changes and regular physical activity.
