FDA Warns Against Three More Weight Loss Pills

The FDA (U.S. Food and Drug Administration) is always busy evaluating and testing weight loss products in an ongoing battle to clear the store shelves and on-line stores of dangerous diet pills and weight loss supplements. On 22 December 2008, the FDA issued a press release containing 28 weight loss products to avoid. On the 8th of January 2009, the FDA expanded the list of tainted weight loss products to include 41 more dangerous weight loss pills. The last update to this list (now containing 72 products) was done on March 20, 2009 via press release. The FDA will continue to update this list on an ongoing basis.

New products are launched into this largely unregulated market on a daily basis, and it is obvious that there is no way the FDA will ever be able to test all the weight loss products on offer. This does not mean all diet pills commercially available are unsafe and / or ineffective. On the contrary, many of them can actually help you lose weight faster, but…..it is of the utmost importance that you make informed decisions when deciding to try new weight loss products. It is absolutely crucial to take responsibility for looking after your own health, so do not rely solely on FDA warning lists and double check promises made by vendors online. The only way to make informed decisions about weight loss pills is to understand which ingredients are contained in products you consider using, and then to explore the potential impact of these ingredients on your health.

Do your research on your next weight loss product thoroughly making use of the internet and any other sources of information you may have access too, for example your local pharmacist. With the overload of information available on the internet it is not always so easy to distinguish between good and bad advice, so choose a few websites (avoid those selling one product or product range) you can trust to help you make sense of the information out there. And get a second opinion every now and then just to make sure these sites are still trustworthy. If you are unable to find the necessary information, put in a request to one of your favorite sites to investigate the product for you, or choose something else that you can find information on.

The difficulty with many weight loss products is that they affect different people in different ways, and often contain ingredients that can interact with other medications you may already be taking. So just because your friend used it and didn’t experience any nasty side effects, does not necessarily mean that it would be safe and effective for you too. Do your own research, and if you are unsure of how the product will affect your health or whether it will interact with other medication you are taking (especially chronic medication), ask for the advice of your doctor first.


Some of the products listed on the FDA’s tainted list contain the same active ingredients that that are found in prescription medications only to be used under medical supervision; sometimes in even higher doses! These very dangerous diet pills are freely available without prescription, and are most often used without the knowledge of family, friends and doctors. They are easily obtained by adults and teenagers alike, and it really is scary to consider the potential cost and heartache that can be brought about by the use and abuse of these rather popular weight loss products. The ingredients to be on the lookout for include:

  • Sibutramine is an appetite suppressant that should be available by prescription only. It suppresses your appetite by manipulating the levels of specific neurotransmitters. This is also the ingredient most commonly found in many of these products. Inappropriate use of sibutramine can cause high blood pressure, seizures, tachycardia (rapid heartbeat), palpitations, heart attack and stroke.
  • Rimonabant is a dangerous a drug not approved for marketing in the United States. It is also an appetite suppressant that works by manipulating neurotransmitters, but it carries with it an incredibly high risk of serious psychiatric problems. The use of Rimonabant has been directly linked to suicides.
  • Bumetanide is a potent diuretic available by prescription only. Side effects linked to the use of bumetanide include serious fluid and electrolyte loss, increased risk of hypertension, and fainting. Significant interaction with other drugs, including lithium and dixogin, can lead to increased risk of toxicity.
  • Cetilistat is an experimental obesity drug. Clinical trials are underway in the US, Japan and Europe. Its safety is not yet established, and there are already indications that use of this drug can result in the rejection of transplants. It works by blocking fat absorption, and appears to have similar embarrassing side-effects to Orlistat (also a fat blocker), namely oily stools, fecal incontinence, rectal discharge and urgency to use the toilet. Orlistat (Xenical and Alli) is FDA approved though.
  • Fenproporex is a stimulant not approved for marketing in the United States. Side effects include headaches, increased blood pressure, palpitations, arrhythmia and even sudden death.
  • Fluoxetine is the active ingredient in Prozac, a prescription anti-depressant. It also manipulates the balance of neurotransmitters in the brain to suppress appetite. It can increase the risk of suicide in children, teenagers and young adults. Other side effects include rashes, hives, nausea, headache, anxiety and the life-threatening serotonin syndrome.
  • Furosemide is a potent diuretic that can cause profound dehydration and electrolyte imbalances. Overdoses can lead to seizures, kidney damage and coma.
  • Phenytoin is an anti-seizure medication that can pose a risk to consumers allergic or hypersensitive to Phenytoin.
  • Phenolphthalein was used in a number of laxatives available over the counter, but has been removed because of concerns over links to cancer. Studies suggests that the use of Phenolphthalein can damage or cause mutations to DNA.

The three new weight loss products that have been added to the list are Herbal Xenicol, Slimbionic, and Xsvelten. The current list now includes the following 72 products listed (in alphabetical order) with the ingredients found during FDA tests:

Number Product Name Ingredients found
1. 2 Day Diet Sibutramine
2. 2 Day Diet Slim Advance Sibutramine
3. 2x Powerful Slimming Sibutramine
4. 3 Day Diet Sibutramine
5. 3 Days Fit Sibutramine
6. 3x Slimming Power Sibutramine, Phenytoin
7. 5x Imelda Perfect Slimming Sibutramine
8. 7 Day Herbal Slim Sibutramine
9. 7 Days Diet Sibutramine
10. 7 Diet Sibutramine
11. 7 Diet Day/Night Formula Sibutramine
12. 8 Factor Diet Sibutramine, Phenolphthalein
13. 21 Double Slim Sibutramine
14. 24 Hours Diet Sibutramine, Phenolphthalein
15. 999 Fitness Essence Sibutramine
16. BioEmagrecim, sample 1 Fenproporex
BioEmagrecim, sample 2 Fluoxetine, Furosemide
17. Body Creator Sibutramine
18. Body Shaping Sibutramine
19. Body Slimming Sibutramine
20. Cosmo Slim Sibutramine
21. Eight Factor Diet Sibutramine
22. Extrim Plus Sibutramine, Phenytoin
23. Extrim Plus 24 Hour Reburn Sibutramine
24. Fasting Diet Sibutramine, Phenytoin
25. Fatloss Slimming Sibutramine, Phenolphthalein
26. GMP Sibutramine
27. Herbal Xenicol Cetilistat
28. Imelda Fat Reducer Sibutramine
29. Imelda Perfect Slim Sibutramine, Phenolphthalein kamagra oral jelly uk
30. JM Fat Reducer Sibutramine
31. Lida DaiDaihua Sibutramine
32. Meili Sibutramine
33. Meizitang Sibutramine
34. Miaozi MeiMiaoQianZiJiaoNang Sibutramine
35. Miaozi Slim Capsules Sibutramine
36. Natural Model Sibutramine
37. Perfect Slim Sibutramine
38. Perfect Slim 5x Sibutramine, Phenolphthalein
39. Perfect Slim Up Sibutramine
40. Phyto Shape Rimonabant
41. Powerful Slim Sibutramine
42. ProSlim Plus Sibutramine
43. Reduce Weihgt Sibutramine
44. Royal Slimming Formula Sibutramine, Phenolphthalein
45. Sana Plus Sibutramine
46. Slim 3 in 1 Sibutramine
47. Slim 3 in 1 Extra Slim Formula Sibutramine
48. Slim 3 in 1 Extra Slim Waist Formula Sibutramine
49. Slim 3 in 1 M18 Royal Diet Sibutramine
50. Slim 3 in 1 Slim Formula Sibutramine
51. Slim Burn Sibutramine
52. Slim Express 4 in 1 Sibutramine
53. Slim Express 360 Sibutramine
54. Slim Fast* Sibutramine
55. Slim Tech Sibutramine
56. Slim Up Sibutramine
57. Slim Waist Formula Sibutramine
58. Slim Waistline Sibutramine
59. Slimbionic Sibutramine
60. Sliminate Sibutramine
61. Slimming Formula Sibutramine
62. Somotrim Sibutramine
63. Starcaps Bumetanide
64. Super Fat Burner Sibutramine
65. Superslim Sibutramine, Phenolphthalein
66. Super Slimming Sibutramine
67. Trim 2 Plus Sibutramine
68. Triple Slim Sibutramine
69. Venom Hyperdrive 3.0 Sibutramine
70. Waist Strength Formula Sibutramine
71. Xsvelten Sibutramine
72. Zhen de Shou Sibutramine, Phenolphthalein

* Not to be confused with the line of meal replacement and related products that are marketed as conventional foods under the brand name “Slim-Fast®”. Unilever United States Inc., the manufacturer of Slim-Fast® reported that the Slim Fast product which appears on this list is not in any way associated with, sponsored or approved by, or otherwise related in any way to the Slim-Fast® brand of meal replacement and related products.

The FDA advises anyone who have used any products on the list above (or non-prescription weight loss products containing the active ingredients discussed) to stop taking them immediately and to consult their respective doctors. The FDA is seeking product recalls for all these products and may, if necessary, take additional enforcement steps to protect consumers from these products. Note then, that whilst many of these products are still available on the market, this does not necessarily mean they have been reformulated and are now safe to use.

Serious side effects and concerns can be reported by medical professionals or consumers to the FDA’s MedWatch Adverse Event Reporting program either online, by regular mail, fax or phone.

  • Click here to report online
  • Regular Mail: use postage-paid FDA form 3500 and mail to MedWatch, 5600 Fishers Lane, Rockville, MD 20852-9787
  • Fax: 800-FDA-0178
  • Phone: 800-FDA-1088

Sources:
FDA Uncovers Additional Tainted Weight Loss Products
Questions and Answers about FDA’s Initiative Against Contaminated Weight Loss Products

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17 Responses to “FDA Warns Against Three More Weight Loss Pills”


  • Which website is the correct one for ordering Meizitang ????

  • I was prescribed Reductil 15′s from by my GP. It contains 15mgs of sibutramine. I healthily lost a significant amount of weight and had ZERO health problems. I kept the weight off until I have 4 cycles of IVF which causes weight gain in most women no matter what you do (diet, exercise etc) I went back to my doctor to get another prescription of Reductil only to find out that they had been taken off the market. I felt like I had been punched in the stomach because Reductil was the only thing that ever helped me to stay focused on eating healthy and working out. It was removed from the market because of a RIDICULOUS S.C.O.U.T test which gave people who would NEVER be given reductil in the first place (because of age, health problems etc) 60 months worth! The test market was COMPLETELY wrong for that product! Anyway, Meizitang contains a little less Sibutramine than Reductil 15′s and they work so I will be using them in the same way I did Reductil. Cigarettes are far more dangerous and have caused MILLIONS of deaths but those death sticks are still being sold right? For me, the dangerous effects of being overweight far outweigh the MINIMAL dangers of taking 12mg of Sibutramine. JMHO.

  • Took Meizhitang because 3 of my husband colleagues lost massive weight just in 1 month. so decided to take it. today is my 3rd day of taking Meizitang. No increase in heart rate,BUT tremaoundeus thrist,i couldnt sleep at night kept waking up at night, body temperature becam high…and i sweat a lot. Another friend took it almost had a heart attack,dizziness and faint. should i go on or stop?

  • I TOOK MEIZITANG FOR ABT 3 MONTHS AND LOST 35 LBS I LOVED THE RESULTS HOW EVER WEN I STOPPED TAKING THE PILLS I SLOWLY STARTED GAINING BACK THE WEIGHT BUT NOT BECAUSE I STOPPED USING THEM BUT BECAUSE I WASNT WATCHING WHAT I ATE AND HOW MUCH I ALSO STOPPED EXCERSIZING. NOW IM GLAD TO SAY I STARTED TAKING MEIZITANG AGAIN TO HELP SPEED UP MY WEIGHT LOSS N I WILL DEF. WATCH WHAT N HOW MUCH I GRUB ON AFTER I STOP USING THEM AGAIN ^-^ I NEVER SUFFERED ANY SIDE EFFECTS WHAT SO EVER I AM VERY HEALTHY AND HAVE NO HEALTH CONDITIONS . I DO RECOMMEND TO ANY ONE . EVERY ONE IS DIFFERENT AND TAKE TO PILLS DIFFERENTLY DOESNT MEAN THEY ARENT SAFE …

  • People, seriously, you need to get out and do some exercise.

    There are not magic pills.

    You have to make an effort to be fit and healthy.

  • It is now known that meizitang does have sibutramine in it even if it’s not labeled. This pills definitely work but put things into consideration when taking it. 1. Do NOT take it if you already have a history of heart problems. 2. If you do decide to keep taking it, the ingredient being no longer available and was only through prescription, taking it regularly might make you positive on a random drug test at work. 3. The manufacturing of this ingredient had been stopped due to bad side effects. Look up legal documents and you’ll see that Abbott is being sued for passing such medication on the market. So there’s a couple heads up for you folks out there.

  • There are also many slimming milk shakes, coffee and orange juice that has HCA, Mangosteen and other “herbal” ingredients. There is a buzz on the success of Leisure18 and Fashion Slimming Milkshakes here, so I got really interested. I have known myself to be having palpitations even in drinking a normal coffee; hence, I opted to take the milk shake instead. After a week’s use, I had palpitations! It didnt work for me.

  • I’ve been taking Meizitang for about 3 months. And I have seen the weight loss. I have not had the dizziness, and rapid heartbeat. As far as the thrist I drink alot of water anyway. I have no trouble sleeping at all! But I guess with anything you start seeing your doctor is recommended. Am a pretty healthy person but the older I get its harder to keep the weight down.

  • I took meizitang for almost 2 weeks straight, whilst i did have noticable weight loss there was Severe increased heart rate, always at night which woke me up after pnly three to fours hours of sleep EVERY night. Heaps of energy BUT rapid heart rate concerned me and i felt out of control. Would not recommend!

  • On the other hand…..For every person that lodges a negative reaction to Meizitang pills, there are hundreds of satisfied customers who would NOT like to see the pills removed from sale. No matter what medication or even pure food is taken or eaten, there will always be a minority who are allergic or re-active to them. Fair go,it should be the consumer’s educated choice. As for misusing Meizitang, well some consumers will misuse any substance, including sugar, chocolate, white flour. There is too much scare mongering these days,and many excellent products have been lost because of it. Most people would be shocked if they stopped and read the labels on allowed foods in their supermarket.

  • OMG what else is left!!! Really! If you think about it everything we eat, drink etc, its all bad for you so why dont they analyze that if your gonna get technical. Dont get me started with the FDA it is a joke….

  • oh my God… this product is unsafe(meizitang)? the instruction/ dosage only 1pill/day… is this safe? i already take for 2 weeks and get good result. after taking this products i drink 3L++ of water per/day.. i also want to know if i can take/not this product when i period.. there was 20/36 pills left.. if i still cont this pil until it finish can? will my body weight increase back after stop taking slimmming pills? please let me know….

  • Oh wow, I am really glad I googled Meizitang to see if it was FDA approved. I have only taken 5 of these pills. And the first thing that had me asking questions was a small bump I got in the back of my throat, the next was an area on my face close to my lip that became swollen. I have experienced the extreme thirst on the 3rd day during the night time. Somewhere around the 3rd or 4th day I found the bump in my throat. Today was the day I took the 5th pill, and a few minutes after I noticed the swollen area on my face. This could be an allergic reaction or a side effect. Either way I am done with this so called “natural & side effect free” garbage.

    What can be done about these being sold in stores? There is a store in the mall where I live that advertises Meizitang, 3X Slimming Power, and others.

  • Thank God i stumbled on this FDA warning about Meizitang..i would of still be taking these diet pills. I took them for six weeks with excellent results.Their website said these pills were all natural from chinese plants but how could they if i was experiencing extreme thirst, dizziness, and rapid heartbeat. i stopped taking them when i read the warnings. People are losing weight with meizetang but at what cost? Why doesnt the FDA put these warnings on tv? I just hope my health hasnt suffered taking these pills.

  • Emilia,

    Samples of both Meizitang and Meili were found to contain undeclared quantities of Sibutramine, a prescription strength appetite suppressant that should only be used under medical supervision. Since the manufacturers and distributors don’t declare this ingredient, you don’t even know how much of this drug you are taking in when using these diet pills. In addition, we have no information about the quality assurance processes used in the manufacturing plant! You may even find that the quantity of sibutramine contained varies from batch to batch.

    It is not safe to use Meizitang or Meili, together or separately.

  • i would like to know if i was to take (meizitang) without the (meili)would that be safe?

  • ok, this a list i can print to know what pills to avoid.We can’t understand the labels anyway unless of course you are rocket scientist.

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