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An FDA approved diet pill for obese patients.

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  • Established: 1959 FDA approval; available in the 1970s; removed from the market voluntarily in 1997 but still available
  • Founder: Originally sold by King Pharmaceuticals; currently made by several companies
  • Accessibility: Prescription only
  • Diet Type: Appetite suppressant to be taken short-term
  • Gender: Male and female

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Phentermine is a short-term prescription appetite suppressant that works by stimulating the hypothalamus gland and affecting neurotransmitters in order to decrease your appetite. The hypothalamus gland is the portion of the brain that controls many functions, including your appetite. Combined with proper nutrition and exercise, you can see weight loss results

  • Phentermine is given under doctor supervision
  • Formulated specifically for the obese
  • Documented success stories
  • Suppresses appetite
  • Short term help to lead you to eat healthy and exercise
  • FDA approved
  • Generic version available which is cheaper than name brand

  • Phentermine has the potential of many serious side effects, including: chest pain, fainting, swelling of feet or lower legs, trouble in breathing, among others
  • Currently available by prescription only
  • Not a long term solution
  • Side effects of dry mouth, blurred vision, constipation
  • Phentermine Hydrochloride (HCL), along with a host of non-active ingredients.

Your doctor will decide on your dosage and instructions for taking Phentermine when giving you the prescription. The average dose is 30mg of Phentermine per day, but some patients are prescribed to start off with 15mg per day.


It is recommended that you incorporate diet and exercise into your plan when taking Phentermine. Phentermine is a drug to be taken only on a short-term basis. After six to 12 weeks, you are advised to discontinue taking Phentermine, and continue with your diet and exercise plan to reach your weight loss goals. Phentermine is only intended to help the obese kick start their weight loss plan while they become used to following a low calorie diet and exercise plan.


When you're talking about a prescription weight loss drug, you have a product reserved for people with the most dire of needs. So, obviously this is not for everyone. If you have health problems related to obesity, and you fell you need help in getting some of your weight off, consult your doctor about Phentermine.

Common MisspellingsCommon Misspellings

fentermin, fentermine, phentramine, phenterthin

How Does Phentermine Compare?
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  • Has Good Appetite Suppressant
  • Has Only Natural Components
  • Contains No Coffee
  • Phentermine
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(Page 11 of 13, 252 total comments)



I started this pill on aug19,2009 and today is aug25 and i lost 6.5 lbs wow am all so drinking a lot of water/lemon and it
and mostly soups and grill chicken am not hungry all the time i have the 37.5mg but i only take half of the blue and white pill i helps me fell normal just not hungry.

posted Aug 26th, 2009 1:04 am

Chibogu Onochie

I just started using phentermine on 8-18-2009 and I was at 256.4 and now i am at 247 and todays date is 8-25-2009. I was not working out the first two days and now I am. I feel that the weight training that I am doing is slowing my weight loss or do I feel like that because weights make you gain weight muscles so I actually am loosing more than I think. I am not hungry and when I do eat I eat very healthy.

posted Aug 25th, 2009 12:11 pm user comment


I am 5' and was at 144 - 148lbs after having my daughter. That weight fluctuated for 2 years. I was really depress about my weight and seriously had no time w/ being a full time mommy, employee, and student. I would say I'd tried a few diet pills and lost a few as 2-3lbs here and there. Then for a while my weight remained at 132-135. Finally a friend told me about Phentermine, I started taking that in May 2009. I started off on the scale at 132lbs and my goal was to go back to 110lb or at least 115lb. I was really skeptical about taking this pill, so in the waiting room I'd asked a few women about their results and so on. One lady told me she lost 15lbs the first month. WOW, I thought if I could lose 15lbs the first month, I'll quit and not have to take any pills and seriously try to maintain my weight from there on out. Well since then I've lost only 11lbs total. I lost 6lbs the first month in May. I was excercising daily for 30mins a day for 2 wks, I lost 0 lbs and was really, really disappointed. I watched everything I ate too. But the next week I stopped excerising and ate whatever I wanted, small portions and I lost 4lbs. The next week was my first weigh in June and I lost another 2 lbs, so I was at 126lbs.

During my visit in June I got my second set of pills for 30 days and I haven't been back since. But we have a weight watchers scale at work and as of today, Aug. 12, 2009 I am at 121lbs. This pill has helped me a lot but not enough. And for about a week now I've been having chest pain and having short breath. So I stopped taking it and hoping to maintain my weight and actually lose more. I don't know what I was doing wrong? I know everything works differently b/c everyones body are different.........but I was really wishing and hoping that this would had been the pill to really do it for me. No more taking pills for me....at least for a while.

Best of luck to everyone and I'll pray that everyone the best of luck and good health through it all.

posted Aug 12th, 2009 1:00 pm



I have been on the pill for 30 days i have lost 20 lbs .....I love the pill it has helped so much..I eat healthier now and am going on 45 min speed walks everynight..I feel like a new woman with awhole lot more energy, I thought maybe something was wrong with me since I had such low energy but i feel healthier and i can see my clothes hangin on me .....I recommend this pill be aware of constipation and blurry vision......

posted Jul 30th, 2009 12:02 am



I have just started on phentermine tablets. With only 1/2 tablet once daily, I'm down three pounds in three days.

I'm shocked and hopeful with the results thus far. My frustration is that I enjoy exercise and am nowhere near a junk food junky, and yet my weight as slowly climbed over the last few years.

I believe that while I grab healthy things, it simply too much grazing. Phentermine has really put a stop to that habit.
I am 5'2" and 170 lbs.

posted Jul 27th, 2009 11:21 am



I have been taking Phentermine for less than a week and have already lost 10 pounds. I am 5'10 and weighed 300 lbs the day i started taking it. I absolutely love this pill. I don't even think about food anymore. I have not yet exercised, but I do plan on doing so.

I did nutrisystem for 8 months with fantastic results, but the day I went off of it I started gaining weight back. I was not even eating a whole lot of food.

Anyways, I defiantly reccomend this to anyone who is thinking about giving it a try.

posted Jul 20th, 2009 1:43 pm


My Dr. told me that @ 33 years old, 300+lbs, after many diet attempts, high blood pressure, and starting a new job as a truck driver that she did not like to prescribe pills for diets but we would try phentermine on a month-by-month basis. In 30 days I lost aprx 30 lbs and loved the results, as I don't eat a lot of bad foods. I just can't control quantities of the foods I do eat and as we all know even good foods at bad quantities are bad for you.
So the first month worked out great. I took the pill with my blood pressure pill and a one a day vitamin and was very impressed. I could eat two breakfast bars for breakfast instead of a large bowl of cereal, a tuna sandwich on wheat for lunch, and not be very hungry for dinner. I would eat something small like a half a sandwich for dinner.
But when I was on the road I could not get back to my Dr and she would not prescribe over the phone. I lost all momentum with my diet and have gained back 4 lbs. I am now home and have an apt set up. But I have to say I can't change my new profession and my Dr is not very flexible. I may have to buy them on line. I have seen plenty of sites. Does anyone know if they are legitimate or not?

posted Jul 20th, 2009 5:48 am

velega kerkula


I started taking phentermine two days ago. the first day I took only one pill for the hole day, and it kept me awake all night. the next day I took half of the the pill it still worked I was not hungry at all I was able to sleep.I do like it but I do not want to be on it for more than three months. I weigh about 195lb my goal weight is 150.I am 5 5". my diet is two bioled eggs after I take the half pill. for lunch salad.dinner steamed vege with some chicken or fish.lots of water. my snack is sugar free jello. I exercise for 30mins four times a week. i hope i can get the support I need from you all.

posted Jul 15th, 2009 10:30 am



I have been taking phentermine and a water pill since January 2009. I started out at 253 and I am now down to 219. This medication works and I DONâ??T work out. I know I should but I hate it honestly. I do try and push myself and workout at least twice a week. I know that sounds horrible but I try to focus more on my eating habits. I found out about Phentermine through a friend of mine. She referred me to a doctor that I go see once a month. He weighs me, makes sure my blood pressure is not too high, monitors my weight loss and talks to me about eating healthy and working out. This medication has been wonderful for me. I used to be hungry ALL THE TIME. After taking the medication in the morning, when I get up, I have more energy and it subdues my appetite. It doesnâ??t kill my appetite all together like it does some people. It never has. But it helps me tremendously. When I first started taking the medication I also did weight watchers. I did't go to the meetings but I was counting my points. Now I try to eat healthy and stay on a better food plan so when I stop taking the medication I can keep the weight off. I stopped drinking all regular sodas. I only drink diet soda now and try to limit that to 1 a day. I will eat a burger when I'm out every now and then but I don't get French fries. I try to eat more vegetables and buy low fat snacks that maintain me through the day. I eat fruit, low-fat yogurt, fat free cottage cheese, granola bars, fiber bars, etc. Every once in a while I will have a cheat day. After that I get right back on the program though. I work out very little and wish I could do more. If I worked out I could get my weight off much faster. I am 5'9....have lost 33 pounds and would really like to lose another 30 pounds. If you are considering taking this medication do a lot of research on it and take to your doctor. Some doctors will let you take the medication as long as you go and see them once a month for a check up.

posted Jul 14th, 2009 12:13 am



to kelsie with the tummy exersises: a better form of a sit up that u can def feel the burn and works both upper and lower abs is:

1- lie flat on ur back
2- place hands under head and life neck to chest
3- put ankles together
4- move legs up and down at a 90 degree angle and this will count as "1"


i recommend starting off with 30 and each time u exersise increase by 5 more

regular sit ups and crunches didnt do much for me but this does.. also it is easier on ur back and u feel the burn almost idmediatley.. GOOD LUCK!

within a week i realised this "miracle pill" on top of diet and exersise had toned me up and having an underactive thyriod its difficult to diet and exersise and see idmediate results.

posted Jul 7th, 2009 12:26 pm


I just got a perscription for this... I had no idea I was obese until today! I weigh 174 pounds and am 5'5".... I hope I can get back down to 140.

I'll let you all know if it works!

posted Jun 18th, 2009 7:11 pm


anyone know where i can buy it? my doctor refuses to prescribe any weight loss pills. Thanks!

posted Jun 9th, 2009 2:22 pm



I have taken Phentermine in the past and LOVED it. I just recently started taking it again to lose about 30 lbs. I am very excited. The only bad thing is that you are never hungry so you have to remind yourself to eat ! Crazy right ? Good ofcourse. Good luck to all that use this - It does work. !

posted May 27th, 2009 11:06 am


I just started phentremine today. I am so excited to finally do something for my weight. I have 2 kids under two and I am ready to beat the baby bulge. Does anyone have any workout suggestions to help with the tummy area??

posted May 23rd, 2009 11:23 pm



I have been taking this for about 3 weeks now...I work out 3x a week for 45 mins, cut out cokes and junk food, drink lots of water, and no eating past 6:30. With the phentermine, I take a water pill 3 days a week and get the Vitamin B-12 shot once or twice a month. Even with added muscle weight, I have lost at least 10 pounds and several inches and have started toning up really nice! :)

You just have to set your mind to it and follow through and you can do it!

posted Apr 27th, 2009 2:47 pm


well i just started takeing phentermine 3 day ago and i alredy see results and i love it no rapid heart beat no jitters at all and i got then only for 58 dollars off some web site i think called lipomex but i got 37.5 tablets and yes it dose work

posted Apr 20th, 2009 11:24 am



i just started mine i got mine 04/16/09 and i know it is working cause i can't eat so i have to forc my self to eat and have alot of enerig i runn ........anwyas i will let u all know how it goes when i go back to doc next month on 17 see how much i lost

posted Apr 18th, 2009 3:15 pm



posted Apr 1st, 2009 7:57 pm user comment


i was on phentermine for a year i honestly lost 170 lbs no lie i love it its great and i recomend it to everyone...

posted Mar 30th, 2009 7:58 pm



posted Mar 24th, 2009 2:43 pm user comment


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