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User Reviews for Phentermine

Also known as: Adipex-P, Atti-Plex P, Fastin, Ionamin, Lomaira, Obenix, Obephen, Oby-Cap, Oby-Trim, Panshape M, Phentercot, Phentride, Pro-Fast HS, Pro-Fast SA, Pro-Fast SR, ...show all 20 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.

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User Ratings

10
   
53%(879)
9
   
22%(360)
8
   
12%(193)
7
   
5%(76)
6
   
3%(38)
5
   
3%(40)
4
   
2%(18)
3
   
1%(16)
2
   
1%(12)
1
   
3%(41)

Phentermine Rating Summary

8.8/10 Average Rating

1673 Ratings with 1699 User Reviews

What next?Compare all 48 medications used in the treatment of Weight Loss.

Reviews for Phentermine to treat Weight Loss

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"I took phentermine for about a month. I lost about 10 pounds. I had to stop taking this medication. It made me overly anxious, emotional, and I became irritated very quickly. I also experienced hair loss.I did not feel like myself at all. I feel so much better after I stopped taking this medication. The side effects are not worth it."

   
8.0

Psalmtoday (taken for 1 to 6 months) April 22, 2017

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"I took Phentermine in November and December of 2013 and January of 2014. I went from 178 pounds to 137. 137 is my target weight, and ideal weight. I kept the weight off until this past spring/summer ( 2016 ). And then went back to my old habits and of managed to gain enough weight to put me at 176.2 as of this morning at the doctor. So, I'm 50 yrs old, 5'6" and weigh 176.2. I started the Phentermine right after the doctor's appointment. I'm a little bit jittery today loss of appetite is already taken effect, as has dry mouth. I go back to the doctor in 30 days, but I will weigh myself on Wednesdays"

   
10

Sarah L April 19, 2017

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"UPDATE: Female/21 yrs old/ Wife/ Mother of One: Phentermine 37.5 mg: Starting weight: Feb. 7th 2017, 223.4 Week 1: Weigh in Feb. 14th, 214.8.... Week 2: Weigh in Feb. 21st, 215.3 ...Week 3: Weigh in Feb. 28th, 212.9 pounds ... Week 4: Weigh in Mar. 7th, 211.1 pounds... Week 5: Weigh in Mar. 14th, 211.1 pounds... Week 6: Weigh in Mar. 21st, 209.7 pounds... Week 7: Weigh in Mar. 28th, 208.1 pounds... Week 8: Weigh in Apr. 4th, 205.8 pounds... Week 9: Weigh in Apr. 11th, 205.0 pounds. Week 10: Weigh in Today Apr. 18th, 203.3 pounds. My Weight loss has slowed down a bit. **My doctor appt. stats: Weigh in Feb. 6th, 230.0 pound, Mar. 9th, 215.4 pounds, Apr. 6th 211.0 total loss per Doctor Scale is: 19 pounds in 2 months. My next Dr. apt is scheduled for May 4th."

   
9.0

Mommy01 (taken for 1 to 6 months) April 18, 2017

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" A previous poster Ryan Smith said "I've seen some of the reviews and I have a question for yall how did yall get your doctor to give phentermine to you for 6 months to a year my doctor will only give it to me 1 out of every 3 months" Just to let you know how I get it ... I am attending a weight loss clinic, look for one in your area, they do weekly weigh ins and check your blood pressure weekly, and at the start they did a complete blood workup. I don't have a lot to lose, 5'9" and weighed 171lbs. My goal is 150lbs. Today is day 30, I have lost 18lbs. I started out with 1/2 a pill then after 1 week moved up to 1 a day, it really controls my appetite. I am doing this with a Ketogenic diet.It truly works, I'm not hungry."

   
10

boonies April 16, 2017

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"I've seen some of the reviews and I have a question for yall how did yall get your doctor to give phentermine to you for 6 months to a year my doctor will only give it to me 1 out of every 3 months"

   
10

Ryan Smith April 13, 2017

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Fastin (phentermine): "Use with caution! I was stupid enough to take a whole pill and I thought I was going to die. My heart was racing even though I was laying perfectly still and the world was swimming like I was drunk. The effects have lessened over the course of a few hours but I will definitely not take more than 1/4 of one of theses pills in the future!"

   
3.0

Glow157 April 12, 2017

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Adipex-P (phentermine): "I took Adipex for 1 year and lost 90lbs. I changed my eating habits and starting doing light exercise 3 days a week. I've been off Adipex for 3 months and haven't gained any weight back. Just stick with a healthy eating plan and you will not gain. Medications should be used as a tool if you don't change your eating habits then you can gain all the weight back. *sidenote...please stop writing reviews when you haven't taken the medication or just started the medication. The purpose of a review is to give your opinion on a product after using it for some time. Announcing that your doctor has prescribed Adipex isn't a review and it isn't helpful for people who are looking for reviews on this website..rant over.."

   
10

Michelle RR April 12, 2017

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"I started phentermine in 2015 weighing in at 300lbs. Within 2 weeks I was down 13lbs but one of the horrible side effects was insomnia. I decided to step up my workout regimen and take only a half of pill and ended up losing a total of 45lbs in less than 5 months. Once losing the weight, I got pregnant and gained it all back so now I'm taking it again in hopes of getting the weight off a second time. I suggest drinking a LOT of water and working out that will make the weight come off faster. Although this pill was effective for me, I suggest talking to your doctor first."

   
9.0

Anonymous (taken for 6 months to 1 year) April 11, 2017

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"I started Phentermine 37.5mg on 3/7/17 didn't work for me. I didn't feel any side effects I felt very hungry. 2 weeks after I was going through separation and was still taking the pill but due to my depression I didn't want to eat at all. Maybe I would have a shake a day and something very small. I told my doctor and gave me Adipex instead and some depression medication. So I will post how it goes. I will start them tomorrow 4/10/17"

   
1.0

Maridh86 (taken for less than 1 month) April 11, 2017

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"I started back at the weight loss center February 25, 2017 with the 37.5 mg, topamax to help with sugar cravings and the lipo b12 shot once a month and bought the pills to take daily with my meals since I can't go and get the shot every week. I'm 5'4 weighted 252.0 and on the second month of pills and I weight 228.0."

   
10

Dannysgirl2017 April 10, 2017

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"I originally started this on January 8, 2016 at a weight of 223 lbs. and ended it sometime around August 2016. I started with 15mg and increased to 30mg then decreased to come off of it. I lost over 60 pounds during that time and then lost a little more after coming off of the medication. I maintained my weight with a 5 lb fluctuation. Just recently (Feb. 2017) I was put back on the medication to help me drop weight before possible surgery. I was instantly put on 30mg. I started at 160 lbs and as of today I'm at 145 lbs. The goal is to be at 130-135 lbs. I haven't had any bad side affects other than random bursts of energy, dry mouth, the nasty taste in my mouth, And the lack of bowel movements."

   
8.0

Jamsters (taken for 6 months to 1 year) April 9, 2017

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"I am a 28 year old female at 5'5" I weighed in at 277 lbs on 03/ 10/17 I have not had any severe side effects, dry mouth is all. Just drink lots of water. I exercise daily with interval training. I drink NOTHING but water and eat better. I keep my calories at about 1000 a day with 3 meals a day and a few snacks in between. I go back to see the Doc on 4/10/17 I cheated and stepped on the scale today and have lost a total of 21lbs at 256. You can do it! It is not a diet, it is a lifestyle change, if you don't change your habits you will gain all of it back and more. Can't wait to see what the next couple of months bring. Goal weight of 150lbs!"

   
10

Anonymous (taken for 1 to 6 months) April 8, 2017

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"I started taking adipex on March 19th, weighing 256 lbs (5'10" 32 year old female). I took it every day around lunch time ( took it for only 12 days).. Its now Thursday and I haven't taken it since last Friday because I still have NO appetite.. I have to make myself eat.. No side effects besides extreme dry mouth, I drink over a gallon of water a day.. and I weighed myself today and I'm 238. So I'm down 18 lbs with only using it for 2 weeks.. I find this medicine extremely helpful and am so thankful someone told me about it!"

   
10

Heather G (taken for less than 1 month) April 6, 2017

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"I am 28 years old, 5'8 and my starting weight was 285lbs. I gained a tremendous amount of weight during my pregnancy and after I gave birth to my son, I've been struggling the last year 1/2 to get it off. I'm no stranger to eating healthy, and working out, but could not seem to get this weight off for the life of me. I began taking Phentermine on Saturday, April 1st and as of today I have lost 10 lbs, with a weight of 274.8. I work out on Saturday's Monday's, Tuesday's & Thursdays doing high impact cardio, and I have also been consistent with a diet of about 1000 calories a day or less. No processed foods, soda, sweets, breads, pastas...basically none of the foods that make you fat, lol. I'd like to lose another 10lbs before my follow-up."

   
10

Balex88 (taken for less than 1 month) April 6, 2017

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"I started taking adipex exactly 4 weeks ago today and I am officially down 22 pounds. I started out at 5 foot seven and 184 pounds and as of this morning I now weigh 162 pounds. This pill has given me an immense amount of energy and has actually improved my mood and my overall sense of self worth. It really is a miracle worker however all good things have downfalls as well. I have become extremely constipated and I have to take a stool softener and MiraLAX just to consistently go to the bathroom. The first three weeks I had the most horrible cotton mouth I've ever experienced before and in the first two weeks I had the most awful taste in my mouth. Most importantly I've just recently started having some problems with my blood pressure going up and I actually had tachycardia last night while I was at work. I'm already on a blood pressure medication but I had it under control before I was allowed to start this pill. I am not sure if it's the medication because it was literally just an onset with the blood pressure and tachycardia. I also just got off of antibiotics for tonsillitis. I live and work in a very high stress environment and let's just say I was at work having a very bad night when I this happened. Overall, I do you recommend this medication but only if you do you seriously need it. I have a family history of obesity, diabetes and high blood pressure so I was wanting to nip it in the bud before it got to that point."

   
7.0

BoyMom34 (taken for less than 1 month) April 5, 2017

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"I started taking phentermine in February weighing 207. As of April 2nd I'm down to 191. The doctor prescribed topamax since I have been in the same weight for 2 weeks. Today is my first night taking the topamax. I was unsure of taking it because of the side effects. Hopefully it goes good this week."

   
7.0

Alexyy (taken for 1 to 6 months) April 5, 2017

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"I started Phentermine on April 2nd. I took a half of pill. Had some dizziness but tons of energy. The type of energy that motivates you to clean and work out. I have never been successful losing weight. I am 5'5, 200lbs and 39 years old. I was-concerned with this med because I take medicine for high blood pressure. So far today, April 4th, 2017 my blood pressure is normal, I have worked out 2 days in a row and am down from 200lbs to 196.6. I was in disbelief when I saw this. I know it is mostly water weight but I have little appetite, have been drinking at least 70oz. Of water per day and making healthy food choices. No side effects yet!"

Reese6308 April 5, 2017

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"I started phen about 6 months ago. Weight was 209. I'm 4'11, so ya. Very fat for my height. The doctor was worried an put me on it for 3 months. I lost 10+ pounds the first 2 months. With low carb, low cal. An only 40 carbs max a day. An walking 45 minutes every day. I only ate 2 eggs for breakfast. An 1/2 cup of coffee. Atkins for lunch. Lots of plain tea and water. An lean meat an veggies for dinner. Last of the 3 months I hardly lost any weight. So I went off it for 3 months. Gained 3 lbs back even though I kept food diary. An kept working out. Now I'm on it again for round 2. My goal weight is 130. My doctor said it is a process. I can't seem to get under 170. No matter what I do. An my current weight fluctuates between 170 an 173."

   
10

Shell99 April 4, 2017

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"1 month results, started Phentermine 37.5 (oblong blue speckled pills) on 3/3/17 at 225 even. Today 4/3/2017 I had my 1 month weigh in at 209 even. I lost 16 lbs! This pill truly does feel like magic, it makes it very easy to stick to a healthy/clean diet because your cravings are literally gone. I went from thinking about food every minute of the day to hardly remembering to eat. I do make sure I eat at least 1000-1200 cal a day, sometimes closer to 1400. I am an avid runner but my schedule doesn't always permit, so I make sure to try and walk at least 45 minutes a day....food is a lot of lean meat, fruit and vegetables. The only side effect that is inevitable is dry mouth. I will update next month!"

   
10

Anonymous (taken for 1 to 6 months) April 3, 2017

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"started taking 37.5 mg for weight loss on 3/31/17, starting weight 217, I am 5 ft(60inches) tall my waist is 47 inches (3 ft 11 inches), so I am really almost as big around as I am tall. My insurance not cover this so out of pocket cost was 21. dollars"

   
10

Sheljean April 3, 2017

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Adipex-P (phentermine): "I lost about 40lbs through changing my eating habits and regular exercise over a period of about 18 months, but I had hit a plateau. I was referred to a weight loss clinic by my co-workers, who are having great success with phentermine. After my first week of taking phentermine 37.5, I was constantly famished, and tired. At the 3 week marker (down 6 lbs), I requested to switch to Adipex. I noticed a difference the very first dose. I'm on day 3 of Adipex, and it seems to do a much more consistent job of curbing my appetite, and I don't feel sleepy. I'm not overly energetic, but also not jittery, and I'm not getting the headaches. Trying it for a week before possibly checking into another option. So far, I am feeling optimistic."

   
8.0

Cingirl007 April 3, 2017

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"I started with 15mg capsules as my Dr. said that the higher does(30 or 37.5mg) can make it easier to gain the weight back after you are off the pill in 3 months- she will allow no more than 3 months on the pills- I did not find that 15mg really helping me much so I asked her to increase me to the 37.5- I have had no side effects with 15mg so I am a little bit worried after having horrible side effects with Contrave- I plan to do half in the am and half in the afternoon with the 37.5 and see how that goes- I am wondering if I should take a break when we go on vaca for a week in April?"

   
9.0

heathery1213 March 31, 2017

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"Started phertermine 37.5mg on 3/28/17 weight 177 lbs 5'2' . Looking at a 160 weight for my arthritis and joints . First day I could not drive - I was very hyper. My mind was just all over the place. Upset stomach , Weird feeling, slight headache, very little sleep the first night . Day 2 woke up with headache, did not want to take again but , I did . Hour later I was not as hyper but just a bad cloudy feeling all day slight headache again. I could not get motivated to do anything . I am Tracking all food I am In bed and wide awake again ."

Wod12 March 31, 2017

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"I started this medicine on March 24 2017. I had a baby 6 month ago and want to drop the extra weight I had gained. I was 223 when I started this medicine as of today March 28 I am down to 212 my goal is 180. I eat small meals breakfast would be a breakfast oatmeal cookie lunch grilled chicken salad and chicken again for dinner. Im 5"8 by the way."

   
10

Jojoboston March 28, 2017

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"3/27/17... Started taking 30mg Phentermine. Weight-. 209 5'6" Really looking forward to getting back into ONE-derland (under 200lb). At 43 I am ready to start being in Family pictures again. I have started getting up at 430 am and get at least 30 mins of exercise in the morning and then another 45-60 mins in the evening. A change in diet has also happened as well as drinking A LOT of water! Super Stoked for the results!"

Losing Now! (taken for less than 1 month) March 28, 2017

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