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

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BACKGROUND 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 2016?

  • 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 Misspellings

Xencal, Zenical, Orlstat, Orlistat, Xenecal

How Does Xenical Compare?
  • Product Name
  • User Rating
  • Has Good Appetite Suppressant
  • Has Only Natural Components
  • Contains No Coffee
  • Xenical
  • /100

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(Page 3 of 4, 63 total comments)


I have been taking this for 6 weeks now and have lost 9 kilos relatively easily. Not had any of the side effects mentioned but have been really watching my fat intake.

posted May 21st, 2009 8:14 pm


I hve used this many times i can only say tht u only get these side affects if u have anything to eat over 4 grammes of fat .

It does take a while 2 do ure shopping if its first useage but u get used 2 wat u pick up. Yes u can get gas and go to the toilet but i wouldnt use the phrase use a nappy i am in these and i go out everday. so i can honestly say u really need to look at wat ure eating i would reccommend them to any1 tht is needing 2 lose weight

posted Apr 9th, 2009 5:18 pm


I have been taking this for about 2 months now it does work but be careful. I have my pants at leas 6 different times!! You really have to watch your fat intake if not you will pay the price. I have lost 28 lbs. since starting this.

posted Apr 1st, 2009 6:56 am



I've been on Xenical for three weeks and my stomach is already NOTICEABLY flatter. My face is also slimmer. It is true about the increased bowel movements, however you must remember that if you are leaking oil, then you are still eating fatty foods in excess. I figured that out quick. It only takes one "accident" to make sure you take fat into consideration when preparing meals. That being said, I have not had any adverse side effects for the last five days.

posted Jan 17th, 2009 1:58 pm

K Mechem


Horrible. Left me feeling bloated and gassy all the time. Didn't help me stop over eating either. Cravings never went away even with having upset stomach all the time. I would not recommend.

posted Jan 7th, 2009 9:45 am



Well ladies and gentlemen yes everything you say is true,,,,. the company states all of this and the med does what it says it will. side effects included. I not only tried it but dedicated to it for 18 months,,,, the results? I lost 87lbs I look better, feel better, and other than my hair thinning out from the rapid weight loss I totally believe in it. I'm a Xenical cheerleader...... GO XENICAL!

posted Dec 30th, 2008 7:03 am



I was on orlistat which is the same thing and I had the oil anal discharge and this continued no matter what change I made in diet and still didn't see a dramatic weight loss..... also I lost sex drive... not due to the pills necessarily but uncontrolable anal leakage is a turn off to most.... and I wanted to lose weight to feel sexier... LOL.... irony i guess... but lifestyle change and all... it's still not for everyone... and different people metabolize this differently like I said I aleays had some form of oil leakage unless i ate absolutley NO fat which in that case why even take the pill?... and my skin and hair dried out severly.... I hated it...

posted Oct 7th, 2008 1:00 am


the only for sure method to lose 20lbs of str8 fat is dnp (:...you feel like hell while your on it but you lose at least 1 lb or fat a day.

posted Sep 29th, 2008 8:40 am


alice needs to use a spell checker.

posted Sep 11th, 2008 6:18 pm


At least try to compose proper sentances. Use a spell checker. This thread is terrible.

posted Aug 24th, 2008 8:31 pm


this pill works, but with horrible side effects, the only pills that definitly work are the stackers with ephedrine. I lost 35pounds with them too bad they are banned now, unless it has ephedrine it is a waste of money. ask anyone who tried ephedrine and they'll say the same!

posted Jul 18th, 2008 6:56 am


I paid $150 for a month supply, they did work along with the constant bathroom and shower runs. You cant even cough without having an accident! I had to stop going to the gym for fear of an accident, but I still lost 15lbs, but i stopped taking them cause i couldnt take constant running to the bathroom every 20mins. since stopping i have gained 20lbs! if u can handle the anal leakage then u will love the pill, this is definitly for someone who can stay home allday not for an on the go working person. Everyone is different so TRY AT YOUR OWN RISK

posted Jul 18th, 2008 6:56 am


well i have been taking them for a month and i have ibs so they work great for me because now i can go to the bathroom on a regular bases in which i am loseing weight and i feel better then i have my intire life. so if you have ibs i would use this product cas u do lose lots of weight and it helps you become regular.

posted May 27th, 2008 4:34 pm


hi my gynie put me on this to loose weight to help me concieve, i tried it for 6 months, and was awful on my bowel, lost about 9lb, i have been off this for 2 years, got pregnant, my little boy is 14 months. but if i eat ANY fat i have an accident, it has affected my bowel permanently. please be careful and talk to your doctor if it is happening alot, or when you have no fat, good luck in your weight loss though xx

posted Apr 24th, 2008 9:21 am


I've been on Orlistat for 1 month now, and yes I agree to start with the oily discharges are an issue, but the whole point is to reduce your fat intake to a healthy level. It's been just over a week now since my last oily episode, the weight is still coming off and I feel great. It's important to realise that this pill isn't a quick fix, it's a highly motivated way to change the way you eat for good and reflect upon how much fat would be stored in your body, had you not poo'd it out!!!

posted Apr 23rd, 2008 9:59 am


if you take these pills wear a diaper cause you will def be having accidents

posted Apr 11th, 2008 3:19 pm


i have been prescribed zenical as have gained 42lbs after taking anti depressants tablets and i am unsure whether to take them or not..could someone please help me

posted Mar 26th, 2008 2:47 pm


I'm not sure how much it worked for me. I just would hate to see the fat deposits that I would have accumulated had I not been taking this - problems & humilitions & all!

posted Mar 12th, 2008 9:08 am


i started taking these and i have to agree.. u cannot control the oily leakage ad its really expensive. for a months worth it was almost 300 dollars. most insurances wont cover these pills..


it worked for me!!


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