User Reviews for Phentermine

Also known as: Adipex-P, Atti-Plex P, Fastin, Ionamin, Obenix, Obephen, Oby-Cap, Oby-Trim, Panshape M, Phentercot, Phentride, Pro-Fast HS, Pro-Fast SA, Pro-Fast SR, Suprenza, ...show all 19 brand names

The following information is NOT intended to endorse drugs or recommend therapy. While these reviews might be helpful, they are not a substitute for the expertise, skill, knowledge and judgement of healthcare practitioners in patient care.

Learn more about Phentermine.

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Obesity 138 reviews 54 medications
   
9.2
Weight Loss 827 reviews 27 medications
   
9.0
Summary of Phentermine reviews 965 reviews 9.1

Reviews for Phentermine

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Review by Lola12311:

User Rating:  
   
3.0

For Obesity: I have been on Phentermine for 66 days, take 37.5 mg/day, and lost 10 lbs. However as of tomorrow I will stop taking it. It has caused a very negative change in my thoughts & personality & causes huge mood swings. After being on it for 2 weeks I started noticing I was super sensitive, however blamed it on PMS at the time. It hasn't gotten better though. I have been irritable, angry, restless, & just general feelings of sadness. The past couple days I also have been noticing "flashes" of something dark on the floor out of the corner of my eye but when I look in that direction nothing is there. When I read these are rare side effects I decided I need to stop taking it.

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May 19, 2014 11:16 PM

Review by vinabonner (taken for less than 1 month):

For Weight Loss: Started Phentermine 12 May 14 weighing 148 pounds and I'm 5 feet tall. Side effects are dry mouth and going to the bathroom. It's great it really curbs my appetite and how I think about all the foods I want to eat.

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May 18, 2014 6:52 PM

Review by Hedda Lettuce (taken for 1 to 6 months):

User Rating:  
   
10

For Weight Loss: Started phentermine on March 12, 2014, starting weight 207lbs, and I'm 5'8. As of May 15, 2014 I weigh 174lbs, that's 33 pounds in nine weeks. No exercise at all, did the Atkins low carb diet with the phentermine 37.5mg dose. Dry mouth, some sleeplessness. Now do one day on pills, one day off. Works very well.

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May 17, 2014 11:22 AM

Review by MarathonGal (taken for less than 1 month):

User Rating:  
   
10

For Weight Loss: I have been taking phentermine for 5 days and lost 9lbs. The first day of taking phentermine I had a lot of energy, I felt extremely happy and literally had no appetite. By the second day, my appetite was controllable. I workout 5-7 days a week. If you workout while taking phentermine you will lose weight quicker. I do not have any side effects. I take phentermine with a full glass of water first thing in the morning 30 mins before breakfast. Phentermine has reduced my craving for sweets and carbs throughout the day. I start to feel hungry by dinner time and I eat a healthy dinner. Phentermine REALLY DOES WORK! Just make sure you workout and you''ll be amazed. Good luck.

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May 17, 2014 9:29 AM

Review by happyloser (taken for 1 to 6 months):

User Rating:  
   
8.0

For Obesity: I began taking Phentermine on 12/5/13. At that time I weighed 181 lbs & had 46% body fat. Today I weigh 140 lbs & have 33% body fat. I went from a size 14 to a size 6. I still have weight to lose & am continuing to take the medication, but I thought I'd offer my opinion after 5 mos on the medicine. It works very well. Having said that, I have had some side effects - dry mouth & insomnia. The dry mouth isn't all bad. It has forced me to drink tons of water, but the insomnia is difficult. I take 1 37.5 mg pill in the morning, but if I've had trouble sleeping for the last few days I might take 1/2 or skip a dose all together. Also, the medicine makes me more irritable than normal, but gives me energy to work out.

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May 15, 2014 1:26 PM

Review by Mrs. Manning (taken for less than 1 month):

User Rating:  
   
9.0

For Weight Loss: I took my first dose on May 10th, I dropped 9lbs immediately within the first 4 days without exercise, my side effects the first 3 days were dry mouth, excessive energy, slight difference in my heart rate, clammy and insomnia. Day 5 has been totally different and I started going to the gym again today. My heart rate was still slightly higher and I ask have problems sleeping but everything else went away. I dropped 2 more pounds today from mowing the lawn and walking the treadmill for thirty minutes. I do have to make myself eat I'm never hungry. I eat 6 times per day counting in at about 2000 calories a day. I watch my carb and sugar intake, but eat lots of dietary fiber and protein. My goal is 150 lbs, I started at 207 and I'm now 196lbs.

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May 14, 2014 8:10 PM

Review by A New Beginning (taken for 1 to 6 months):

User Rating:  
   
10

For Obesity: My experience was this. I was practically dying. My body was giving up. My blood pressure was 205. Pre-diabetic. LDL off-the-charts. I had joint pain, could not concentrate, acid reflex, headaches constantly to migraines, could not sleep, in dead of winter I was always too hot, would walk outside at 2am in shorts just to cool down, snoring, could not get any complete rest, and many more. I found this YT site from a Dr. William Davies, Wheat Belly. I instantly decided to quit eating ALL wheat and grains. You will be happy you did. Then I went on Phentermine 37.5mg. I was 315. Since 1/15 to 5/12, I have lost 60 pounds. I'm still losing. You will find out that you need to drink lots of water because it will be difficult to urinate.

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May 12, 2014 10:30 PM

Review by Phentermine:):

User Rating:  
   
10

For Obesity: Started taking phentermine 37 mg about a week ago... starting weight was 314lbs and I have lost 10 lbs so far! I just pre-make my meals for the week plus snacks, drink 10 glasses of water a day and exercise 3x a week! Only side effect is dry mouth.

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May 12, 2014 12:22 PM

Review by mimi8991:

User Rating:  
   
6.0

Adipex-P (phentermine) for Weight Loss: Been on it for a week now and lost 8 pounds already, only thing is I think my body is getting use to the pill because the first three days It was hard to eat and now I'm starting to crave food again.

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May 10, 2014 5:53 PM

Review by Alyssa193065:

User Rating:  
   
10

For Weight Loss: I started Phentermine a few months ago, my starting weight was 178lbs and my height is 5ft 3in. My BMI was very high. The first month I went from 178 to 166lbs. The second I went from 166 to 154lbs. My third month I did not lose any so they are upping my dose from 15.7 MG to 37.5 MG. So far I am very pleased. I know that when you stop taking it, it can all come back but I exercise and eat light naturally. My medical conditions make it extremely hard me for to loose it. Soon as it is off, it will be easier for me to keep it off. So I am not worried about that.

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May 9, 2014 3:29 PM

Review by Bride101814 (taken for 1 to 6 months):

User Rating:  
   
10

For Weight Loss: This is like my 5th review and still no complaints. I started taking phentermine 30 mg on 2/1/14 with a start weight of 215lbs. 12 weeks later on 4/26/14 I weighed 182.5lbs (32.5 LB loss). Then I got off of it for a week because I felt I had built up a tolerance. I did eat some extra carbs during this week and worked out but I remained the same weight. Then on 5/3/14 I got back on it (so this is my first week back on) after only 5 days I've dropped to 177lbs. That's 38 LBS in almost 14 weeks! I think cycling off of it was very beneficial and I might even cycle off after shorter periods of 3-4 weeks ON and 1 week OFF. I haven't had any side effects and I'm still very pleased with my progress.

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May 8, 2014 9:05 AM

Review by JNE1985:

User Rating:  
   
9.0

Adipex-P (phentermine) for Obesity: My starting weight was 285lbs. After a 3 months, I am 245lbs. I take 37.5mg in the morning and 15mg around 2pm. I will admit that in the beginning I was not eating as healthy as I should have been. Now I don't crave the sugar and fats that I used to. My once favorite food, Philly cheesesteaks, are only mildly appetizing to me. I have to remind myself to eat during the day. The only problem is that if I stay up too late I do start to crave junk food, carbs mostly.

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May 6, 2014 10:47 AM

Review by OneSxyMami (taken for less than 1 month):

User Rating:  
   
7.0

For Weight Loss: Age: 36 Weight: 230 Height: 5'7" Mother of 4 kids, I started Phentermine 37.5mg tabs on 4/17/14. I take half the 37.5mg tab 1/2 hour before breakfast and the other half 1/2 hour before lunch. By taking them this way, it helps curve my appetite for the whole day. I don't have a scale in my house, so I'm not sure how much weight I lost; will find out at my follow up doctor's appointment in 2 weeks. But, I can say that I can tell I lost weight when I look in the mirror and by the way my clothes are fitting more loosely. The only side effects that I have gotten are dry mouth and headache when I don't drink enough water. I seemed to lose the most weight in week 1, I'm sure that was water weight. I'm eating low carb/high protein, but need to exercise more.

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May 5, 2014 10:35 AM

Review by KortneyR93:

User Rating:  
   
10

Adipex-P (phentermine) for Weight Loss: I've been taking Adipex capsules for 1 week now and I am down 11 pounds. I don't exercise. The pill just makes me not want to eat. I have to make myself eat. I also have severe dry mouth, so I drink water way more now. The only other side effect I have is heart flutters. But I can handle that, because it happened to me before I was on Adipex.

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May 5, 2014 5:24 AM

Review by Love124:

User Rating:  
   
9.0

For Obesity: I started phentermine on 3/6/14 at 254lbs and now 5/3/14 228lbs. I'm so happy still long way to go. Dry mouth is all I have. I eat 1200 calories per day, and do not take the pill over the weekend. Good luck.

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May 3, 2014 7:27 PM

Review by Anonymous:

User Rating:  
   
10

For Weight Loss: I started phentermine 4/28/2014 I weighed in at 191.4 I started going to the gym and changed my eating habits it is now 5/2/14 weighing in at 187 4 pounds lost.

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May 3, 2014 1:02 AM

Review by Rira (taken for 1 to 6 months):

User Rating:  
   
10

For Weight Loss: Progress so far: I started phentermine on 1/7/2014 and weighed 185. I took the pills every day for the first week, then gradually decreased the number I took until now I am only taking them as I feel it is necessary. As of 4/29/2014 I weigh 157lbs. Diet and exercise: I ate about 1400 calories a day and on top of a job in retail (I am on my feet all day) I work out for at least a hour 5-6 days a week. Personal Suggestion: Only use phentermine as a tool to help you change your unhealthy lifestyle. It is NOT a miracle weight loss pill, but a useful tool. Side Effects: Other than occasional irritation (often if I forgot to eat for a while) and mild insomnia during the first few weeks I have experienced no negative side effects.

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April 30, 2014 6:05 AM

Review by BJD4089:

For Weight Loss: I started the pill last week I'm down 7 lbs. I hope I continue to take off the weight.

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April 27, 2014 12:21 PM

Review by thatswatsup:

User Rating:  
   
10

For Weight Loss: I took phentermine about 2 years ago and I lost 53lbs in two months, but then after it was like it didn't work anymore. On March 11, 2014 I talked to my Dr about wanting to lose weight and she prescribed phentermine capsules. The capsules are great because I found they last all day and I'm never hungry. I work at night so I take one just before going to work and I don't get sleepy at work anymore. As a matter of fact I am full of energy even into the morning. As of 04/24/2014 I went from 321lbs to 280lbs. If it worked this well without exercising and without eating right, I can only imagine the results if I changed my exercise and eating habits. We will see!

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April 25, 2014 6:00 AM

Review by On'Esti (taken for less than 1 month):

User Rating:  
   
9.0

For Weight Loss: Well to start off I must say that this pill is great. On 4/6/14 I started this pill with little exercise, I lost 8 pounds 4/13/14. I have not got back in the scale since, I will update soon.

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April 24, 2014 2:07 PM

Review by BelovedIDM:

User Rating:  
   
9.0

For Obesity: I started with Duromine 30mg on 27/03/2014 weighing 84kg and I am currently (23/04/2014) 79kg which means I have lost 5kg to date. I only exercised once a week for two hours. I changed my diet a little bit by taking 2 slices of toasted brown bread, 1 egg and a fruit, lunch fruit & a small portion protein, supper would only be 3 colorful veggies e.g.: carrots, beetroot & spinach. What I like about this is I can choose what I want to eat. I would highly recommend it to anyone who did not have the ability to control their appetite and crave for everything around.

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April 23, 2014 4:50 AM

Review by Lauren789 (taken for less than 1 month):

User Rating:  
   
9.0

For Weight Loss: I started on Phen 4/11 at 254.8 & I'm 5'7". 4 days in and I'm down to 245.4lbs. HOWEVER, my stomach growls awfully. I take 37.5 around 8:30 am after breakfast. Does anyone have suggestions on how to control afternoon snack attacks? I'm really trying to get down at least 60 lbs by 10/31!

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April 22, 2014 9:59 PM

Review by RoseColoredGlasses:

User Rating:  
   
9.0

For Weight Loss: After realizing how much weight I had gained over the course of the last year I was mortified, I'm in my early 40's, 5' 5" and weighed in at almost 190, I nearly cried. I got my blood work done and found that I am pre-diabetic and borderline anemic. So I talked with my provider and we agreed that this would be something we could try to help get my weight down. I'm taking the 15mg and this is the morning of my second day and I have already lost 2.1lbs. Moderate exercise and overhauling my diet will hopefully aid my short term goal of 24 lbs, short term being by mid June. Feeling hopeful!!

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April 18, 2014 3:31 PM

Review by KristyGutierrez:

User Rating:  
   
10

For Weight Loss: I started this medicine because I was always wanting to eat and never feeling full. So my Dr put me on 1/2 of a 37.5mg tab. It started working the same day I would eat and then I felt as if I hit a brick wall and couldn't eat anymore. Went to the Dr a week and 1 day later and the nurse said WOW you have lost 8lbs in a week and 1 day great job! I feel amazing! I had gone up in weight to 195lbs and dropped to 160lbs on my own in 7 months so they were happy to give me something to help me with the rest of my weight because I was doing all the work and nothing was coming off anymore because I always wanted to eat something! I only have dry mouth and a funny taste in my mouth.

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April 17, 2014 10:40 AM

Review by Liz985504 (taken for less than 1 month):

User Rating:  
   
6.0

Adipex-P (phentermine) for Weight Loss: I've been on Adipex for 6 days now and have lost 12 pounds. I'm really happy about that but I've had constant diarrhea every day since then and have become very dehydrated. Be cautious of the side effects.

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April 16, 2014 4:46 PM

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