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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%(851)
9
   
22%(348)
8
   
12%(185)
7
   
5%(72)
6
   
3%(36)
5
   
3%(40)
4
   
2%(18)
3
   
1%(15)
2
   
1%(12)
1
   
3%(37)

Phentermine Rating Summary

8.8/10 Average Rating

1614 Ratings with 1631 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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"Starting today 2-23-17 this is my second time taking this lost 20pounds in two weeks My weight now is 268 Goal:168 By June 2017 Will be walking a lot as well."

Nurse jennifer (taken for 1 to 6 months) February 24, 2017

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"Started 2.20.17. Biggest side effect is lack of sleep. I notice I am not crazy about food as before. I cannot tolerate any caffeine including chocolate as my heart rate will increase. Looking forward to results!"

   
2.0

Pkyt (taken for less than 1 month) February 23, 2017

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"Started phentermine February 15th weighing in at 183 as of today February 21st for my first week I'm at an even 170. I'm 26yrs old and 5'8! Only side effect is dry mouth. I eat maybe 800 calories a day and drink 8-10 bottles of water per day. I'm hoping to lose at least 25lbs my first month and be down to 140 by the end of April."

   
10

Anonymous (taken for less than 1 month) February 22, 2017

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Adipex-P (phentermine): "I started phentermine capsules end of August 2016 weight was about 197-199lbs starting out. I tried to lose weight for 2 years I had never been this heavy & felt miserable everyday cut out pop was drinking only water & attempted to diet with no success. Tried the tablets before 37.5 mg gained 10lbs so this time my primary doctor called in capsules to the pharmacy, within the first week I lost around 7lbs which I'm sure was water weight. First month I lost 25lbs give or take then the 2nd month I didn't lose so I went off of them for 2 weeks started again lost a couple more lbs. I am now 165lbs Feb. 2017 I haven't lost since but I have maintained. I also never exercised. 500 calories the first 3 weeks on them with breaks here & there."

   
10

None123 February 20, 2017

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Fastin (phentermine): "I suffer from obsessive compulsive personality disorder. It makes me not want to be around other people so I stay in all the time, which leads to extreme lethargy. I just lay in bed all day and spiral downward until I have no energy to do anything at all. Fastin gives me the energy psychologically as well as physically to get out of bed and start doing things. It does cause some side effects, but these are to be expected with something that works so powerfully. Only this or Zoloft have helped me to lead a productive life. With doctors for zoloft, I have to make appointments, pay for insurance, a doctor visit, the prescription, and wait in line at the pharmacy, none of which I can do after I run out of medication. Thank you Fastin"

   
9.0

demetrius (taken for 1 to 6 months) February 19, 2017

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"I am 28, 5 ft 7in and my starting weight was 298lbs. I have always looked smaller than I weighed. I started taking phentermine 01/19/2017. I work out every other day for four hours. I mostly do cardio between treadmill, elliptical, stair climber, and arc trainer. Depending on the day I will only use two different cardio machines. Then utilize the weight lifting machines to tighten and tone. Had my first weigh in yesterday and I was down 20.8 lbs. My goal was 10. This has def helped me get my eating under control and I have more energy as well. The only problem I face is severe dry mouth which water will fix or even chewing gum. I would recommend this as a starting point to lose weight. I didn't get a refill as per my request."

   
10

missmittens88 February 18, 2017

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Adipex-P (phentermine): "Started on 1/19/2017 5'4" 18 yr. old female weighing 168 lbs. Always been a little overweight and decided to make a change. It is now 2/17/2017 and have lost 7 lbs. so I now weigh 161. I got those results with a semi-strict diet and working out frequently (about 5-6 days a week). I don't have a ton of weight to lose so it hasn't melted off as fast as others but it definitely works! Just have extreme dry mouth. I would recommend this to anyone serious about losing weight. Will update again in a month."

   
10

AMG1998 (taken for 1 to 6 months) February 17, 2017

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"I was prescribed phendermetrazine for the first week and it made me feel awful! Bad headaches and made my heart pound. In my first week of taking it I lost 8.5 pounds I weighed 283 when I started and lost the 8.5 pounds and am now weighing 275 It has helped me to not feel hungry all day. but with the bad side effects I asked to be put on phentermine and have had no side effects and a lot of energy and my heart isn't pounding so let's see if I get the same results. I'm super excited !!"

   
10

Mrs. Ashie February 15, 2017

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"Female/21 yrs old/ Wife/ Mother of 1: Start weight: 223.4 Feb. 7th 2017. I was prescribed Adipex 37.5 mg on Feb. 6th from my Dr. I decided to buy the generic brand Phentermine 37.5 mg and I started this medication the morning of Feb. 7th. I have been taking one whole pill a day. My highest calorie intake last week was 780 cal. due to not having an appetite. I drink a lot of water during the day and exercise 2-3 days a week. I eating clean and have one cheat meal per week. When I stepped on the scale the morning of Feb. 8th, I was 214.8 pounds! That is a loss of 8.6 pounds in 7 days! I am so happy! I will continue to update as the weeks go on.."

   
10

Mommy01 (taken for less than 1 month) February 15, 2017

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"Start weight: 246lbs at doctor on 2/01/2017. Started taking Phentermine 37.5 on 2/02/17 (Friday). Went to the beach that night, came back Wednesday and weighed 242lbs (at doctor). I ate grilled chicken salads and one or two chocolate chip granola bars a day and drank lots of water. While on vacation I walked a lot since I was at the beach sight seeing, did some shopping and just did normal vacation stuff. I didn't workout while I was gone. Today is 2/12/2017 and according to my scales I weigh 240lbs (scales are dialed up 3lbs to match doctors). Since I've been back from vacation I've worked out 7 mins every day and went walking, slow pace. I eat salads and granola bars still and sometimes have a heavier dinner. Mental side effects exp."

   
8.0

Mrs.tidwell (taken for less than 1 month) February 12, 2017

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"I started taking phentermine last Sat. Today being 2/11/17 I've lost 10lbs my first week. The only side effect that bothers me is the hyperactivity and a little paranoia. I hope it goes away. I'll keep you updated."

   
9.0

Piggy2rat February 11, 2017

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"I started Phentermine on January 13, 2017 as of today February 11, 2017 I have lost 16 pounds. I have not worked out at all. Ive been eating a salad at 11:00 and 3 chicken stripes with ranch and chic fa la sauce from Chic fa la for dinner everynight. I lost 9 pounds my first week, 5 pounds my second week, and 2 pound my third week. I didnt lose any week during my last week probably because I cheated almost everyday. 261 to 245 so far. Wish me luck on my next bottle."

   
10

Nishanicloe (taken for less than 1 month) February 11, 2017

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"I started on 2/7/17 weighing 194 as of today I already lost 5 pounds let's see how the rest of the month goes"

   
7.0

Sus81 February 11, 2017

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"When prescribed, I really didn't think this was going to work. I have pretty much been overweight my entire life. My doctor reccomend I take phentermine, mainly because diabetes was in my family history. December 31st, weighing 263, I began to take half of a 37.5 tablet. The first day, I was super dizzy for the first few hours. But I never felt that sensation again. I haven't really felt any symptoms related to the pill. Today I went in for my weigh in, and I weighed 246, so a totally lose of 17 pounds in 42 days. Although I wish it were a larger weight loss, I do have to take into consideration that I haven't really exercises. But my diet has changed radically. I would recommend to give it a chance. You never know what could happen."

   
10

Healthychanges (taken for 1 to 6 months) February 11, 2017

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Adipex-P (phentermine): "I'm 19, female 240 pounds and 5'8" I started taking adipex yesterday (02/10/2017 and I had a boost of energy for about 5 hours along with constantly sweating, dizzy, no appetite I had to force myself to eat and my heart racing and blurry vision here and there. I sure do hope to see results because these side effects are pretty terrible. Any recommendations? I'm drinking lots of water and eating with the pill."

Liz cotter February 10, 2017

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Adipex-P (phentermine): "Today was my 1st day taking to pill. I had energy for about 12 hours and really no urge to eat although I did. I drank plenty of water today, I felt like I had dry mouth. No real bad side effects. I did work out and it help."

   
8.0

Gemlady1 February 9, 2017

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"I started taking phentermine on Jan 11th this year. As of now I have lost a total of 9.7 lbs. I was hoping to lose more this first month, but I am happy with the loss I have. I have hypothyroidism, so it has been difficult to lose anything before I started. I have about one more week to finish the first prescription. I will follow up later. Good luck to everyone!"

Teefor February 8, 2017

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Adipex-P (phentermine): "Started on Jan16th 2017 and today is Feb 8th 2017 so far I've lost 11 pounds but I have skipped days which is about once a week and on my period days. Start weight was 200 and today I weigh 189. I workout out at least twice a week based on my busy schedule. The pill works great on my appetite and keeps me drinking water a gallon a day. I barely consume enough calories usually about 500 to 800 a day and I've noticed on my cheat days I end up losing more the next day. I need more motivation to get to my goal weight. Wish me luck ! 25 year old female 5'2"

   
5.0

Vecia February 8, 2017

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"So my husband started taking the med January 9th and he has lost a total of 20 pounds in almost a month time he has been eating very healthy and just started excersing today since his skin started to look saggy , I started the medicine today started with half of the pill in the morning and took the other half during lunch since my husband said it made him dizzy the first week or so , and it did a lil I did notice my appetite wasn't the same had very dry mouth but nothing water and chewing gum wouldn't help , I weight 160 and want to loose 30lbs so I can get to my ideal weight. I'll keep y'all posted."

   
10

Anonymous February 8, 2017

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"Hello. I started taking Phentermine 37.5 mg today. I have cotton mouth so drinking water is very important to me. I last weighted myself on 2-1-17 at 190 lbs. Updates will follow I'll try not to weight myself until next Friday but I know it's going to be HARD. I'm a person who gets on the scale everyday or two days."

Hazel105 (taken for less than 1 month) February 3, 2017

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Adipex-P (phentermine): "I started adipex-p 1-25-17 the first day within 30 mins of taking it, I was nauseated and started choking down water trying not to vomit, sadly I did anyway afterwards I continued the water, the nausea settled and I decided to try it the next day so far it's been 10 days on a 1300 calorie diet & workout 3-5 time a week and drinking mostly water only Juice once a week and I'm down 9lbs I'm 35 and very over weight with a goal from the doctor of 31lbs lol and that is me being reasonable. Anyway weight loss is a struggle and I wish everyone success with there goals but I think it's worth trying!"

Reddheadfoxx82 (taken for less than 1 month) February 3, 2017

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"The first time I took this three years ago, I lost 20 pounds in four months, but as soon as I stopped my appetite skyrocketed and I gained it all back. I went back just this year to try again and it has zero effect on my appetite, it is like I am taking sugar pills. I seriously asked them if they were giving me sugar pills. They tried the "zine" one on me too, phentermazine or something and that was even worse. I think for some people you have one shot with these to lose the weight. After that they have no effect on your body."

   
5.0

Lost it's effect (taken for 2 to 5 years) February 3, 2017

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Adipex-P (phentermine): "When I first started I had to take a blood test and low and behold the reason I had gained weight was my thyroid was not normal ( explains the gobs of hair falling out too) that 1st week I took both pills and it was seriously the worst week my body has ever put me through! Which I'm positive it was the thyroid meds but it made me an absolute wreck! I have now lost 15 lbs in a month and a half! I run on the treadmill everyday and well my eating is minimum which it has been like that since before this. The adipex makes me feel normal again easier to focus and at normal energy levels which I'm sure the thyroid meds are helping that along too. All & all completely worth it but make sure you have a complete blood test done before you take it!"

   
10

Nicckiii (taken for 1 to 6 months) February 3, 2017

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"I started taking Phentermine in June of 2015. By June of 2016 I had lost 100 pounds. I stopped taking them in October of 2015 and gained about 5 pounds back. I just recently started taking again today."

   
10

HopeJV January 30, 2017

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Fastin (phentermine): "Hello I'm 46 years old and I have a prosthetic leg so I can't get much exercise and I've gained a lot of weight I can't move around a lot and I've tried everything and nothing works for me and I finally came across Fastin I was worried about taking it but when I finally did I did not have to exercise because I can't it made me not want to eat much it control my appetite very well which nothing else worked no other diet pills I tried but Fastin made me start losing weight drastically I lost 5 pounds the first week and I kept losing it week after week I lost 20 Pounds in two months and I'm finally at my weight goal thank you Fastin I am so happy with my body now !!"

Anonymous (taken for 1 to 6 months) January 29, 2017

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