What Happens If You Take 2 Orlistat? | Cured Pharmacy

Clinically Proven UK Registered Pharmacy

What Happens If You Take 2 Orlistat? Cured Pharmacy

UK-registered clinical team
Confidential and secure
No GP visit needed
Fast and discreet delivery
Genuine Products
UK-licensed only
Fast Delivery
Next-day available
Expert Advice
UK pharmacists
Woman using Cured Pharmacy online consultation for weight loss treatment
From £32.00 Starting dose — clinically approved
LIVE PRICING

Our Pricing

Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Orlistat - UK-licensed prescription Treatment
Treatment

Orlistat

From £32.00

Future orders save 5%
Buy Now
Xenical Orlistat 120mg Capsules - UK-licensed prescription Treatment
Treatment

Xenical Orlistat 120mg Capsules

From £49.99

Future orders save 5%
Buy Now
Orlos (Orlistat) 60mg Weight Loss Aid - UK-licensed prescription Treatment
Treatment

Orlos (Orlistat) 60mg Weight Loss Aid

From £22.29

Future orders save 5%
Buy Now
Orlos (Orlistat) 60mg Weight Loss Aid - 84 Capsules - UK-licensed prescription Treatment
Treatment

Orlos (Orlistat) 60mg Weight Loss Aid - 84 Capsules

From £22.29

Future orders save 5%
Buy Now

What Happens If You Take 2 Orlistat? Cured Pharmacy

Published on: June 03, 2026

If you're wondering what happens if you take 2 orlistat capsules instead of the prescribed single dose, it's important to understand the potential effects and what steps to take. At Cured Pharmacy, our UK-registered clinical team provides clear guidance on orlistat dosing safety, helping you use this weight loss medication effectively and safely.

What Happens If You Take 2 Orlistat Capsules?

Taking two orlistat capsules instead of one does not increase the medication's effectiveness at blocking dietary fat absorption. Orlistat works by inhibiting pancreatic lipase enzymes in your digestive system, and a single 120mg dose already blocks approximately 25% of dietary fat from being absorbed [1]. Doubling the dose does not double this effect because the enzyme inhibition reaches a therapeutic ceiling.

The primary consequence of taking 2 orlistat capsules is an increased risk and severity of gastrointestinal side effects. You may experience more pronounced oily stools, faecal urgency, abdominal discomfort, and oily discharge [1]. These effects occur because excess unabsorbed fat passes through your digestive system, and taking more orlistat than prescribed simply means more fat remains undigested without providing additional weight loss benefits.

If you've accidentally taken a double dose, do not take another dose to 'make up' for it. Simply resume your normal dosing schedule with your next meal containing fat. There is no evidence that a single instance of double dosing causes serious harm in otherwise healthy individuals, but it's not recommended practice [2].

Understanding Correct Orlistat Dosing

The standard prescription dose of orlistat is 120mg (one capsule) taken up to three times daily with each main meal containing fat. The lower-strength 60mg version, available without prescription as Orlos, is taken in the same pattern but at half the strength. Each dose should be taken immediately before, during, or up to one hour after a meal [1].

If a meal contains very little or no fat, you should skip that dose of orlistat entirely. Taking orlistat when there's no dietary fat to block provides no benefit and unnecessarily exposes you to potential side effects. This is why understanding your eating patterns is crucial for effective orlistat use.

Maximum Daily Dose Limits

The maximum recommended dose of orlistat is 360mg per day (three 120mg capsules with three main meals). Exceeding this amount, whether accidentally or intentionally, does not enhance weight loss outcomes and significantly increases the likelihood of uncomfortable gastrointestinal symptoms [2]. Clinical trials have established that doses above 120mg three times daily provide no additional therapeutic benefit.

Side Effects of Taking 2 Orlistat at Once

The most common consequence of taking two orlistat capsules together is intensified gastrointestinal effects. You may experience oily spotting from the rectum, flatulence with discharge, urgent bowel movements, fatty or oily stools, and increased bowel movement frequency [1]. These effects typically occur within 24-48 hours of the double dose as the unabsorbed fat passes through your system.

Less commonly, some individuals report abdominal pain, cramping, or discomfort. These symptoms are generally self-limiting and resolve once normal dosing resumes. However, if you experience severe abdominal pain, rectal bleeding, or signs of an allergic reaction (rash, difficulty breathing, swelling), seek medical attention immediately [2].

Managing Increased Side Effects

If you've taken a double dose and are experiencing heightened side effects, stay well-hydrated and consider reducing dietary fat intake for the next 24 hours. Wearing panty liners or having a change of underwear available may help manage any unexpected oily discharge. The symptoms should diminish as the excess medication clears your system, typically within one to two days.

Product Strength Status Starting Price
Orlistat 120mg Prescription only From £32.00
Xenical Orlistat 120mg Prescription only From £32.00
Orlos 60mg Pharmacy supply From £22.29
Orlos (84 capsules) 60mg Pharmacy supply From £23.49

What to Do If You Take 2 Orlistat Accidentally

If you realise you've taken two orlistat capsules by mistake, do not attempt to induce vomiting or take any additional medications to counteract it. The most appropriate action is to skip your next scheduled dose and resume your normal dosing pattern with the following meal. Contact your GP or pharmacist if you're concerned, particularly if you have existing medical conditions or take other medications [2].

Keep a record of when the double dose occurred and any symptoms you experience. This information can be valuable if you need to consult a healthcare professional. At Cured Pharmacy, our team is available on (+44) 116 4646009 if you need guidance after a dosing error.

To prevent future double dosing, consider using a medication tracker app, setting phone reminders, or using a pill organiser marked with days and meal times. These simple strategies can help ensure you take orlistat correctly and maximise its effectiveness as part of your weight management programme.

Does Taking 2 Orlistat Increase Weight Loss?

No, taking two orlistat capsules does not accelerate weight loss or improve results. Clinical trials have consistently shown that orlistat 120mg three times daily is the optimal therapeutic dose, and exceeding this provides no additional benefit [1]. The medication works by blocking a specific percentage of dietary fat absorption, and this effect plateaus at the recommended dose.

Effective weight loss with orlistat depends on consistent use at the correct dose combined with a reduced-calorie, lower-fat diet (approximately 30% of calories from fat) and regular physical activity. In clinical studies, patients taking orlistat 120mg three times daily lost an average of 10% of their body weight over one year when combined with lifestyle modifications [1]. Taking more medication does not replace these essential lifestyle changes.

Optimising Orlistat Effectiveness

To get the best results from orlistat, focus on taking it correctly rather than taking more. Ensure you take one capsule with each main meal containing fat, maintain a balanced diet with no more than 15g of fat per meal, and stay physically active. Consider supplementing with a multivitamin containing fat-soluble vitamins (A, D, E, K) taken at bedtime, at least two hours after your evening orlistat dose, as the medication can reduce absorption of these nutrients [2].

Orlistat Safety and When to Seek Medical Advice

While a single instance of taking 2 orlistat capsules is unlikely to cause serious harm, repeated overdosing or intentional misuse can lead to complications. Chronic excessive use may increase the risk of kidney stones, liver injury (though rare), and severe vitamin deficiencies [2]. Always follow the dosing instructions provided by your prescriber or on the patient information leaflet.

Seek immediate medical attention if you experience severe abdominal pain, jaundice (yellowing of skin or eyes), dark urine, persistent nausea or vomiting, or signs of kidney problems such as changes in urination patterns. These symptoms, while uncommon, require prompt evaluation. Contact your GP or NHS 111 for guidance if you're unsure whether your symptoms warrant medical review.

At Cured Pharmacy, all orlistat prescriptions are issued following a clinical assessment by our UK-registered prescribers. Our superintendent pharmacist Tarun Kumar (GPhC 2233073) and clinical team ensure you receive appropriate dosing guidance and ongoing support throughout your weight loss journey. Genuine UK-licensed orlistat starts from £32.00, with transparent pricing shown before your consultation.

Scientific References

  1. Torgerson, J. S., Hauptman, J., Boldrin, M. N., & Sjöström, L. (2004). XENical in the prevention of diabetes in obese subjects (XENDOS) study: a randomized study of orlistat as an adjunct to lifestyle changes for the prevention of type 2 diabetes in obese patients. Diabetes Care, 27(1), 155–161. https://doi.org/10.2337/diacare.27.1.155 [accessed 13 August 2026]
  2. Sjöström, L., Rissanen, A., Andersen, T., Boldrin, M., Golay, A., Koppeschaar, H. P., & Krempf, M. (1998). Randomised placebo-controlled trial of orlistat for weight loss and prevention of weight regain in obese patients. The Lancet, 352(9123), 167–172. https://doi.org/10.1016/S0140-6736(97)11509-4 [accessed 13 August 2026]

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication.

Trusted by thousands

Real people, real results

Jane L.

"Brilliant. Lost 4 stone on mounjaro no side effects at all. Cured pharmacy are excellent. Always helpful pens sent out quickly always comes with needles and sterile wipes. If you want to go on GLP-1 go to cured pharmacy. So professional. Thank you cured pharmacy you changed my health and well being."

Ann-Marie

"I absolutely love this product, I have been using 2.5mg as maintenance dose and have managed to control my weight without any side effects and can still eat well balanced meals. The pharmacy is very efficient friendly and helpful I would not purchase from anywhere else."

Sacha W.

"So far I'm really impressed by my results it's crazy cause I'm not snacking like how I used to do and I see my face slimming down already and it's only been 2 and a half weeks. Can't wait to give my feedback in 5 months time thank you cured pharmacy."

Kimberly G.

"Mounjaro has corrected my hormonal weight gain during menopause. I am using it now to maintain that balance. The results for me have been exceptional!"

Jennifer

"Great really helps cure those nasty habits can't wait for my next mounjaro pen."

How it Works?

Select from our recommended UK-licensed medications.

1

Choose your treatment

Step 1: Choose your treatment from Cured Pharmacy

Select safe UK treatments. Quick answers.

2

Answer quick questions

Step 2: Answer quick consultation questions

We will deliver direct to you as quickly as tomorrow.

3

Get it delivered fast

Step 3: Fast discreet delivery to your door

Start Your Assessment For Weight Loss

Start your journey to better health today.

  • Reviewed by UK-based prescribers
  • Takes under 3 minutes
  • Discreet Packaging

Start Your Journey To Better Health Today

Once you complete a short online assessment you will be able to choose your preferred treatment from safe medically approved options tailored to you.

Start My Assessment

Returning Customer?

Log in to Your Account

Faq

What happens if you take 2 orlistat capsules at once?
Taking 2 orlistat capsules does not increase weight loss effectiveness but significantly increases the risk and severity of gastrointestinal side effects such as oily stools, faecal urgency, and abdominal discomfort. Skip your next dose and resume normal dosing with your next meal.
Can taking 2 orlistat cause serious harm?
A single instance of taking 2 orlistat capsules is unlikely to cause serious harm in otherwise healthy individuals, though it will likely cause uncomfortable gastrointestinal symptoms. Repeated overdosing may increase risks of kidney stones and vitamin deficiencies.
Will I lose weight faster if I take 2 orlistat?
No, taking 2 orlistat capsules does not accelerate weight loss. The medication's fat-blocking effect plateaus at the standard 120mg dose, and clinical trials show no additional benefit from higher doses.
What should I do if I accidentally took 2 orlistat?
Do not take your next scheduled dose. Simply resume your normal dosing pattern with the following meal containing fat. Stay hydrated and be prepared for increased gastrointestinal side effects over the next 24-48 hours.
How many orlistat can you take in a day?
The maximum recommended dose is three 120mg capsules per day (one with each main meal containing fat). Taking more than 360mg daily provides no additional benefit and increases side effects.
Can I take 2 orlistat 60mg instead of 1 orlistat 120mg?
While two 60mg capsules equal one 120mg dose in terms of total medication, you should follow the specific dosing instructions for the strength prescribed to you. Consult your pharmacist before changing how you take your medication.
What are the symptoms of orlistat overdose?
Orlistat overdose typically manifests as severe gastrointestinal symptoms including profuse oily diarrhoea, abdominal cramping, flatulence with discharge, and faecal urgency. Serious complications are rare but may include kidney stones with chronic excessive use.
How long do side effects last after taking 2 orlistat?
Increased side effects from taking 2 orlistat capsules typically peak within 24-48 hours and resolve within one to two days as the excess medication clears your system. Symptoms duration depends on your dietary fat intake during this period.
How much does Orlistat cost at Cured Pharmacy?
Orlistat is available at Cured Pharmacy with prices starting from £19.99 for a 30-day supply of 60mg capsules and £39.99 for 120mg capsules. All orders include a free online consultation with our UK-registered pharmacists to ensure the treatment is suitable for you.
Can I get Orlistat without a prescription in the UK?
Orlistat 60mg is available to purchase without a prescription in the UK, while the 120mg strength requires a prescription. At Cured Pharmacy, our pharmacists can issue prescriptions following a free online consultation, making the process quick and convenient.
How quickly can I get Orlistat delivered in the UK?
Cured Pharmacy offers next-day discreet delivery across the UK for Orlistat orders placed before our cut-off time. All packaging is plain and unmarked to protect your privacy, and delivery is free on orders over £40.
What should I do if I miss a dose of Orlistat?
If you miss a dose of Orlistat, simply skip it and take your next capsule with your next main meal that contains fat. Never take a double dose to make up for a missed one, as this increases the risk of side effects without improving effectiveness.
Is Orlistat safe to use long term for weight loss?
Orlistat can be used safely for up to two years when taken as directed and monitored by healthcare professionals. At Cured Pharmacy, our team provides ongoing support and regular reviews to ensure your treatment remains safe and effective throughout your weight loss journey.
Tarun Kumar, Prescribing Pharmacist

Medically reviewed by

Tarun Kumar, Prescribing Pharmacist (GPhC 2233073)

Reviewed on: June 03, 2026

Last reviewed: 13 August 2026

Last updated on 13 August 2026.

Review History

Our experts continually monitor new findings in health and medicine, and we update our articles when new information becomes available.

Why this page was updated on 13 August 2026

Content checked and updated as part of our periodic review, to ensure accuracy and currentness.

Current version (13 August 2026)

Edited by: The Editorial Team

Medically reviewed by:

Tarun Kumar, GPhC No. 2233073, Prescribing Pharmacist


How we source info.

When we present you with stats, data, opinion or a consensus, we'll tell you where this came from.