Home > Diets > Diet Supplements Diet Navigation    
User Rating

This diet does not have a rating because it does not have enough votes.

+ - Tried it? Rate it!


An FDA approved diet pill for obese patients.

Top Rated Diet Pills of 2024
QUICK FACTSQUICK FACTS Start the Diet Now Advertisement
  • 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

Do You Know the Best Diet Pills of 2024?


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?
  • Product Name
  • User Rating
  • Has Good Appetite Suppressant
  • Has Only Natural Components
  • Contains No Coffee
  • Phentermine
  • /100
  • .
  • .

> Leave Feedback

User Feedback

(Page 8 of 13, 252 total comments)

Ms Lip

I love phentermine....its been around for a while...i am now back on it after having my son 2 years ago...I still need to lose 15 lbs..to get my pre-pregnancy weight...I stared my 30 day supply on yesterday...now this is day 2...and I will keep u inform...ive been up all nite cleaning...that's the first couple day effect it has on me...

posted Aug 1st, 2010 8:15 am



Nearing the end of week three and I've lost 18 lbs!!!!! Have not even started exercising yet but following a very drastically low cal/low carb/high protein meal plan. Its been very hard to remember to eat 5 small meals a day when I'm used to 1 or 2 large meals a day, but I feel better than I ever have. Started at 221 and I'm so excited that at this rate, I will be under 200lbs in less than a week! It's been 10 years since I've been that low! Good luck everyone!

posted Aug 1st, 2010 1:47 am


I start taking phen 2 weeks ago and I lost 6 pounds already. I used to weight 142 and now im 136...my goal is to reach 128!.... let see what happens .

posted Jul 29th, 2010 8:50 pm


Cori, I went to the MD and was told to eat atkins diet (no carbs) for the first 3 days and then have 2 carbs, 2 fruits, 2 veggies, and 2 protiens as the regular diet while on this med. No salt, no alcohol, and no additional caffeine (sodas - coffee). If you do have alcohol, subsitiute 1 glass for your 2 carbs that day and have no more than 2 glasses a week (you need those carbs) and if you do have additional caffeine, no more that 2 cups a day.

posted Jul 23rd, 2010 11:39 am


Cori, was wondering if you ever got a food plan? I would love one also.

posted Jun 17th, 2010 4:08 pm



I have been taking it for almost a week and have only had one problems (headache) and that was b/c i FORGOT to eat, but thats not something new fo rme... either one really./

posted Jun 16th, 2010 9:48 pm



I was 5'1 and 154...only 11 days ago. Ive already lost 13 pounds and am close to seeing the 130's again. Im going to stay on it for another 25 days and then get off for at least a while. I hope to loose another 15-20 pounds.
One BAD thing I found is it will make you very emotional, I took it 6 days straight and was very sad and moody those days and then the 7th day I skipped and felt fine, today I took it and about 2 hours later my sad mood was back,

posted Jun 14th, 2010 12:10 am


I just started takeing this that the doctor gave me . but im not to sure what all to eat . if anyone has a way of emailing me a food plan i would really like it . i did take this pill 6 months ago for a month and i lost 5 bls but that was it and the doctor told me that he want to keep me on it now for 6 months and see how it does. but i need help finding the rite foods to eat . its hard when you have young kids and all they want is junk food and wont eat what i cook that is healthy . :) you can email me and let me now i would greatly help me out. good luck to everyone that is doing this and have fun. [email protected]

posted Jun 13th, 2010 11:01 am


I took phen for about 3 months and lost 30 pounds. the moment i got off of it i gained even more than what i was before. I was 129 getting off of it and that was less than a year ago. now i'm at 173. i will never take phen again

posted Jun 10th, 2010 1:32 pm


I would like to say that I started on this 8 months ago. My starting weight was 268 and I am 5' 8". I have lost 75 pounds during that 8 months. I feel 100% better, and do not have the bad self image I used to. I would like to lose down to 160 and feel that is approriate for my age, height, and the fact that I hvae 4 children. Let me clarify that I have not been on the meds for the whole 8 months... actually havent taken them the past 2 months and have continued to lose the weight. Not only did it help boost me into the weight loss, but I have extra special people there backing me up the whole way. I have just over 30 more to lose and feel like I have a new appreciation for food. You dont live to eat... you eat to live!!! Therefor, make wise choices and think lean protein, fruits, veggies, and WATER!!!!!!! Best of luck to all!!!

posted Jun 8th, 2010 9:01 am



I started taking the 30 mg pill on May 14 2010 I weighed in at 203 I'm 29 yrs old and 5'3 I have been following a low calorie diet and exercise 30 min a day 4 days a week. I don't eat after 7 pm and I watch my portion being on this pill makes that really easy since I'm hardly hungry. I lost 7 lbs my 1st week and today June 6 2010 I weighed in at 180 lbs !!! That's 23 lbs lost so far in just over 3 weeks. I still have 40 more lbs that I would like to lose but so far I am amazed!! I feel great and have alot of energy. I would recommend this to anyone who really needs that extra help like I did!!!!

posted Jun 7th, 2010 2:51 am

yo-yo dieter

I was loving it at first, after about 5 days on half a pill, I could tell the effect wore off after a couple hours. I started taking the 37.5 mg once a day early in the morning, again it worked for about 3 days and after that I was still hungry, and did not get that energy rush. I have stopped taking them. I will not put a drug into my body if it has no effect on me. I will go back to trying to eat right and get active...I love to dance so I'll be tearing up the dance floor (in my bedroom) burning extra calories and eating more fruits, and trying to take in smaller portions. I've lost weight before without drugs, so I don't even understand what made me want to take this, I guess I was just being LAZY. I wish you all luck, but not for me and even thougI did lose 5 pounds, I gained 8 after I stopped the pills.

I would tell you to find out what you love to do, and do lots of it, get moving, and eat every few hours to keep your metabolism going. After I had my 2nd daughter I weighed in at 260, by the time she was 1 I was down to 160. My daughter is now 8 and when she was 7 I hit 204, dropped down to 176 in about a year, just doing the right things. I'm back up to 195, it is really frustrating and I know that I have to make a lifestyle change if I want to keep it off!

Best of Luck to you all!

posted Jun 1st, 2010 4:46 pm



i never thought that i would wake up one day and not want to have pancakes for breakfast!! phen is changing my life, iv tride every diet and magic pill, but this is different. i am an extreme over eater and now i have to force myself to eat, i have more energy for the gym and to carry on with my day. phen is time released so its not like other hunger suppresents that stop working at night and make eat the house before bed. i love it, GO FOR IT

posted May 27th, 2010 3:35 pm


i have a hypothyroid problem and take a daily pill to help is this diet pill safe to mix any info would be great

posted May 25th, 2010 3:03 am


Folks, I have read several of the posts here - do not take a pill to lose weight if you are not exercising and eating right - go get help it you dont know how. If you cant afford help, walking 30 mins a day is free and you'll be amazed at what it will do for you. If you dont change your habits, you may lose weight on this pill, but I promise you - it will come back - there is plenty of information at your fingertips for learning to eat better. Good Luck!

posted May 19th, 2010 1:45 pm

yo-yo dieter


for those of you who have not seen any results...you are probably not eating! I used to exercise like crazy and could not loose weight, then I started having something to eat first thing in the morning, and then ate something "small" not necessarily healthy but a snack like every 2 hours, stopped eating 2 hours before I went to bed and every week I was loosing 5 pounds. I don't know what happened to me, Iost motivation and now my doctor prescribed 37.5 mg phen...I know this is exactly what I need to get me back on track I am currently 5ft 8in. weighed this morning 192 it's my third day on the pills and I started at 195. You have to EAT and chug down the water!!! I go to curves at least 3x's a week and hopefully I can reach a normal weight of about 160.


It is not too expensive for those who were wanting to know.

posted Apr 30th, 2010 4:40 pm



i started taking the phentrmine 37.5 yesterday and i have to make myself eat and i got lots of energy

posted Apr 23rd, 2010 11:36 pm



I love phentermine. I have only been on it 2 weeks and have lost 8lbs. I don't have any side affects, the first day I was jittery and that's it. I sleep like a baby at night, I don't have increased energy but I'm also not sluggish. It does decrease my appetite but my doc said I must eat 3x a day so I make sure I do I exercise 3x a week just a brisk walk or jog around my neighborhood. If I snack its an apple or an orange. I don't count carbs or calories, I just make healthy choices and have not had any fries, chips, or ice cream. Its a lifestyle change I eat rice and pork ..but I'm conscious of my portions. If you want to put in work go for it! If you want a quick fix be prepared to gain it all back once you stop phen. Good Luck!

posted Apr 23rd, 2010 4:10 am

Renee Ingram

Today is my first day taking phentermine and I still feel hungry. Is this drug supposed to take a few days to kick in?

posted Apr 12th, 2010 6:49 pm

Mandy P

I have read a significant portion of these stories that people post. Let me say someting...if you look up Adipex or Phentermine on any website, it is for clinically OBESE people. It says that right in the top portion of these post pages. People who weigh 125lbs and are trying to lose 15 lbs taking diet pills are out of their minds. YOU ARE NOT OBESE! And you are upset that these pills aren't working for you, that amazes me... However, Good luck to all! I just started on them, and believe me, i've seen them work on my friend. Let's see what happens for me...

posted Apr 8th, 2010 2:37 pm


Leave Feedback

Or, proceed without an account


Already a member?

Whats better than