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Xenical Review (UPDATED 2020): Don't Buy Before You Read This!

The prescription-strength pill is not for the casual dieter.

Top Rated Diet Pills of 2020
What is it?

Xenical is a weight loss diet pill made to help reduce the intake of dietary fats. It’s a prescription drug available only via the recommendation of a doctor.

Clinical studies have been run which show it has weight loss effects. A diet and exercise plan is required in order to see results, and this drug is intended only for short term use. A certain amount of calories from dietary fats are not absorbed, instead they are passed through bowel movements. In this comprehensive review you’ll learn about how effective it is, customer listed side effects, what kind of weight loss it can produce, and much more. A list of the top 10 diet pill supplements is available when you click here.

Do You Know the Best Weight Loss Pills of 2020?

Xenical Ingredients and Side Effects

Orlistat (also named Tetrahydrolipstatin)

Orlistat (also named Tetrahydrolipstatin): This ingredient is sold as either an over the counter or in the case of Xenical, only via prescription. It is intended to be taken alongside a low calorie diet, and only for people with a BMI of 30 or higher, or 27 or higher if one has an obesity related illness.

It blocks an enzyme which helps metabolize fats, which then removes some undigested fats via bowel movements. It has no effect at all on calories from sugar, protein, or carbohydrates.  Possible side effects may include:

  • Reduction of fat soluble vitamins which may cause nutritional deficiencies.
  • Increased bowel movements, oily stools, and watery stools.
  • Nausea, vomiting, and diarrhea.
  • Liver damage, kidney stones and allergic reactions.
  • Difficulty breathing, dizziness, and itching.
  • Yellowing of the skin and eyes, dark urine, and back pain.
  • Gas, nausea, and vomiting.
  • Frequent and painful urination, pain in the stomach, and bathroom issues.

Certain symptoms may be a sign of a bigger issue, and it’s advised to seek immediate medical attention if one experiences side effects such as odd colored urine, seizures, and many other issues. There’s no way to determine what one might experience, as even healthy people can suffer from unwanted side effects.

It’s necessary to reduce fats to around 30% of one’s total macronutrient amount. Increased fats may produce several unwanted side effects. So although this ingredient is meant to reduce some of the calories from fats, one still has to be careful of their fat intake.

Due to it being able to reduce fat soluble vitamins, it may produce other long term health damaging effects. It may require an additional use of multivitamins to make up for the loss. The kinds of vitamins which are fat soluble include vitamins A, D, E, and K.

A comprehensive clinical study was performed over a year by the Cochrane Database of Systematic Reviews:

“increased rates of gastrointestinal side effects and slightly lowered HDL levels”

In terms of results it was shown that:

“orlistat reduced weight by 2.9 kg”

2.9 kg is roughly 6 pounds; over a year this means it produced around 0.5 pounds of weight loss a month. This is extremely low considering all the potential side effects, as well as the necessary diet and exercise plan. It’s unknown if the weight loss benefits are due to the added diet and exercise which are required.

Certain people are advised to never use this ingredient, as it may increase the risk for serious side effects. Those with difficulty processing nutrients, eating disorders, history of seizures, digestive problems, and other issues are advised not to use this.  It can potentially cause serious health concerns.

A doctor also has to ensure one is healthy enough while being obese enough to benefit from Orlistat.

EDITOR’S TIP: Combine this supplement with a proven fat burner such as Sletrokor for better results.

Xenical Quality of Ingredients

One sole ingredient is offered which is intended to help reduce some dietary fats. It has no other weight loss use, and can only reduce a fraction of the calories from fats. This means for people who don’t eat much fat micronutrients, it won’t have much of an effect. Though one still has to limit the amount of calories they eat that come from fats.

There also has to be a complete lifestyle change, requiring diet and exercise.  A doctor can only prescribe this drug, and it needs to be taken with careful watch over any side effects.  Certain people have experienced serious side effects from Xenical. It’s also advised to avoid this if one has certain medical conditions.

Xenical has been tested in clinical studies, with the leading study showing that it has limited weight loss potential.  It also had an increased risk for side effects such as gastrointestinal problems.

To see which diet pill supplements were ranked as the top 10, click here.

The Price and Quality of Xenical

Pricing for Xenical depends on where it is purchased from. A standard pricing for places like Walgreens and CVS goes for $172.42 per 30 capsule bottle.  Since it’s recommended to take 3 a day, each bottle lasts 10 days. This makes the daily price for use is $17.24.

No money back return is offered and there’s no guarantee of safety. There are numerous possible side effects and certain people may be more susceptible to symptoms. As you’ll see in the “Customer Opinions” of Xenical” section, there were many issues with side effects and a lack of weight loss benefits.

The sole ingredient in Xenical has only been shown to be modestly effective at weight loss. One study showed it only promoted around 0.5 pounds of weight loss per month. Some users failed to see any benefit. There also has to be a complete diet and exercise plan used, which may be a big reason for any weight loss experienced.

Still, because there is no guarantee, it’s unknown what kind of an effect this diet pill may have. It requires a lot of careful consideration, and a doctor can only prescribe it if he deems a person is healthy enough.

A list of the top 10 diet pill supplements is featured in this link.

Business of Xenical

The makers of Xenical go by the name of Genentech. They can be reached via the following customer service numbers:

Phone Number: (800) 551-2231

Address: 1 DNA Way Mailstop 258A

         South San Francisco, CA 94080

They have had to settle major lawsuit, of which was due to patent infringement costing $200 million.

The company was also shown to have written speeches for politicians who were paid off by them.

A $67 million dollar lawsuit was also settled over false drug claims. The company was found to have lied about the effectiveness of one of their drugs.

EDITOR’S TIP: For the best results, our experts recommend using weight loss pills for at least 3 months. Save your money by buying a few bottles at once.

Customer Opinions of Xenical

Here are some reviews from customers:

“it is showing very little effect on me… My weight didn’t change also”

“been taking this for 2 whole weeks and haven’t lost no weight! Although I (sic) have all the side effects”

“Didn’t lose even one pound! It didn’t work for me”

“I felt extremely light headed, breathless, and the urge to go to the bathroom. Makes me fart a lot”

People were often disappointed to find that they experienced side effects, with a lack of weight loss benefits. This includes people who made sure to exercise more and eat fewer calories. People who tracked their calories carefully and added more exercise also failed to see any benefit.

Side effects were a concern as people mentioned they experienced nausea, oily discharge, increased bathroom usage, oily stools, diarrhea, stomach problems, stomach pain, and many other symptoms. Certain people had to stop taking this drug because of the heavy stomach related side effects. Some users were unable to do basic tasks, as they had to constantly use the bathroom.

A common symptom was bathroom related issues, with certain people unable to control their bowel movements.

There were also people who were forced to the hospital due to symptoms.

Conclusion - Does Xenical Work?

When making a decision on Xenical it’s important to examine the customer reviews, what kinds of effects are possible, and what clinical studies have to say about it. Many customers failed to see any benefit, but there were many complaints about serious side effects. Exercise and calorie counting is also necessary, with a reduction of fats. Still, no guarantee is offered, and the only intended benefit is to reduce the calories from fats. No other weight loss benefit is possible from Xenical. A major clinical study also showed that it could only reduce 6 pounds in a total of one year.

The 2020 top ranking supplement of the year goes by the name of Sletrokor. It has only plant based extracts with no added binders, fillers, preservatives, stimulants, or unnecessary additives. Customers have left many great reviews and testimonials to showcase its potent weight loss. Its effects include appetite suppression, increased metabolism, fat burning, improved mood, and many other benefits. Users of Sletrokor have commented that it’s easy to take, and that it helped produce potent weight loss.

Sletrokor is also backed by a full 30 day money back guarantee. Returns are offered with no questions asked. To learn more about Sletrokor, you can click here

How Does Xenical Compare?
  • Product Name
  • User Rating
  • Has Good Appetite Suppressant
  • Has Only Natural Components
  • Contains No Coffee

> Leave Feedback

User Feedback

(Page 2 of 4, 64 total comments)


I have been taking xenical for 6 months and have lost on average 3lbs per month. My doc said you really need to stick to a vegetarian type diet with at least 45g protein and 45g fat per day. Take 1 with each meal containing 15g of fat or more 3 times a day and try and do about 30mins exercise a day like walking. It really works! Im on 1000 calories a day. I usually eat meals that are low in fat but try to have my main protein from my evening meal (eg, skinless chicken breast). If you are careful with the amount of fat you eat you eat per day you wont get the nasty side effects. Good luck and stick with it guys

posted May 2nd, 2010 3:22 am



i lose weight the first 6 months then nothing for the next 3 months have stopped them.

posted Mar 26th, 2010 12:42 pm


i have been on xenical for a week. I have 20 kgs to lose as my BMI is 31. In the past week I have had oily spills everyday. So I guess i am still eating too much fat. this week I will really try to watch that. I have lost 500 g :-( .

posted Mar 22nd, 2010 1:30 am



Your insurance dose not cover it? my insurance covered it and it only cost 20$ for 1 months supply

posted Mar 5th, 2010 10:42 am


Stuff your *** with tissue... take a vitamin..everyday as instructed.. no biggie.....

posted Mar 5th, 2010 10:36 am



I like zenical 120mg. I over eat alot and I have alot of fatty foods... and yes taking these pills while eatting fatty food does produce orange oily stuff.... but with all of that...i still lost 5 pounds..so this week I am gonig to try low fat and walking with it.....

posted Mar 5th, 2010 10:29 am



iv been taking the xenical for 7 weeks now and i have to say it works for me iv lost 15 and ahalf pounds,iv also started corves 6 days aweek and im starting to look better and feel better i love xenical and will take it on till i loose 3 more stone fingers crossed,,xxx also ill be keeping my legs crossed,,,,ha ha

posted Mar 3rd, 2010 12:14 pm


I have been taking Xenical for 4 days now. I have not had any bouts of "oily" anything! I take it this means I am not consuming too much fat. No weight loss, but, it's only been 4 days! Anyone else like me, whereby you did not experience any "oily" stuff, but, did lose weight? What day did you notice the firs weight loss? Thanks!

posted Mar 2nd, 2010 1:14 am


acaiberry has a lot of benifits try this and love the outcome get it at www.weightlossguide.com

posted Feb 25th, 2010 6:15 am



i'm wyna 500lbs. Have used Xenical for few days but still didn't see the effect. How many pill to be taken per day?

posted Jan 27th, 2010 1:19 am


i've been using it for 10days. I did get oily stool on da 1st day.. but none now. And i don't think I lose weight either. Hehe..

How many pills do we have to take per day if our weight is 450lbs and above?

Pls let me know. Thanks

posted Jan 26th, 2010 11:57 pm


Ive been using xenical for months now and Im very happy with the result. I lost weight in just one week. It was very effective. I purcahsed it from

posted Jan 21st, 2010 10:32 am

s g


I have been using xenical for quite sometime now. My BMI is lower than 27... but I do binge often. On weekends, XENICAL takes care of my fat intake. I am not a gym person, so xenical helps me to maintain my weight. But i WANT TO LOSE MORE.

posted Nov 10th, 2009 12:11 pm



Ihave just started taking xenical 120mg 3 times a day and I felt so embarrassed breaking wind now I where a pad but I am finding it difficult to work full time and travel plus taking this tablet

posted Sep 28th, 2009 2:42 pm



This product does work! It is not a magic pill and You have to be willing to change your eating habits! If you follow the directions and limit your fat intake you will be fine.

posted Aug 15th, 2009 11:15 am

Nathaniel Barnes

In regards to Xenical-I would like to know how soon does the bathroom runs happens soon after taking it? How many pills did you take in a day?


posted Aug 10th, 2009 10:01 pm

shirley tarr


I have used it for about 6 years. But I have to pay for it myself. I have recieved the newsletter in the past and I still use it, But I cannot afford it anymore.

posted Aug 6th, 2009 6:11 pm



thanks it really helped me

posted Aug 5th, 2009 5:11 pm



I been taking xenical for a week now and have lost 5 pounds. I did have oliy discharge but it was because i was eating everthing. also the price is not bad a got them for $75 at plantdrungs.com

posted Jul 14th, 2009 10:16 pm



i have been on these tablets for 2 weeks, i lost 8lbs in my first week and 6lbs in my second. It is true what they say you really do have to watch your fat intake but it is well worth it to see the pounds come off!!

posted Jun 25th, 2009 11:17 am


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BACKGROUNDBACKGROUND Start the Diet Now Advertisement

There are many diet pills on the market claiming that their "secret," "proven," "patent-pending" formula is the weight loss answer you've been looking for. But few come with an FDA approval nor a prescription-strength formula like Xenical (also known as Orlistat).

Xenical is prescribed to obese individuals only by their physician and after determining their body mass index (BMI) is 30 or higher (27 if you have other risks like blood pressure or diabetes). Xenical is responsible for helping many overweight individuals finally find success and maintain. Xenical is usually not considered a first choice. Your physician will want to know if you've already tried diets, exercise and other weight loss means, but yet to find success.

So how exactly does Xenical work so succesfully? Xenical works directly in your digestive system and is responsible for keeping 1/3 of the fat you ingest from being absorbed. This is why Xenical calls for a serious reduction in the amount of fat you consume.

Do You Know the Best Diet Pills of 2020?

  • Specially formulated for those that are obese
  • Keeps some of the fat you consume from being absorbed by your body
  • Prescription strength formula
  • Low-fat diet is a must
  • Side effects include oily spotting from the rectum, urinary tract infection, tooth or gum disorders and gall stones among others
  • Must have a prescription
  • Only obese individuals can take this pill

Orlistat is the main ingredient in Xencial. A complete list of ingredients for Xenical is not available. Because this is a prescription only product, your doctor would be able to share the ingredients with you before prescribing.


Your doctor would be able to explain dosage and how many tablets to take daily. This information is not available without having a prescription.


While taking Xenical, you'll follow a low-fat diet (no more than 30% of your calories) that is identical to the diet outlined by the American Heart Association.

Xenical is a 120 mg capsule and is only available by prescription. It is to be taken with meals that contain fat, no more than three times daily. Xenical also encourages taking a multi-vitamin each day.


Xenical is not for everyone. Since it's made for prescription, it's given to those who are most in need.

Common MisspellingsCommon Misspellings

Xencal, Zenical, Orlstat, Orlistat, Xenecal

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