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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.

Learn more about Phentermine.

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Condition DownUp Reviews Compare Avg. Ratings DownUp
Weight Loss 1669 reviews 44 medications
   
8.8
Obesity 390 reviews 62 medications
   
8.8
Summary of Phentermine reviews 2059 reviews 8.8

Reviews for Phentermine

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For Weight Loss: "Hello all, I started taking this diet supplement on January 1,2017 and I was so excited and determined to do what it takes to be successful. I was prescribed phentermine 37.5mg and took the whole pill daily earlier morning with water and 30 minutes before breakfast. I would drink plenty of water throughout the day and would only drink a half cup of coffee 2 or times a week. My calorie in take daily was 1300 . And I would exercise 3 or 4 times a week by doing 1 hr of cardio. I would experience mild side effects such as lack of sleep, mood swings, light headaches and dry mouth. By drinking plenty of water really helped a lot. What really helped me a lot was keeping a daily diary and writing down everything I ate. I lost 20lbs in 2 months"

   
10

Beauty Lady March 26, 2017

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For Weight Loss: "I started on doctor prescribed 30mg phentermine on 2/10/17. I'm 31 yr old mom of a 10 and 6 yr old boys who I stayed home with for around 5 years...packed on the weight and less active the last few years. Back to work now. Initial weigh in at doctor office fully clothed with boots on was 189 (I'm 5'6"). Weight on home scale was 186. My average weight before has been 150's. First week I lost 4lbs! I had the typical terrible dry mouth, headaches, a lot of energy, trouble sleeping, curbed appetite. After a week everything evened out, besides dry mouth. I've been watching portion sizes, drinking A lot of water, light walking. Today is 3/26/17, home weight 171.8 lbs. down 13-14lbs. I have troubles with pooping and my appetite isn't curb"

   
7.0

Jlj59 March 26, 2017

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For Weight Loss: "I just started the pill March 22, 2017 my weight is 235 I'm 5'7 and my goal is to get to 160. Today is March 24,2017 and the first two days I took half cause my doctor told me to just to see if it works but I felt I didn't get a reactions so as today being the 3 day of me taking it I took a whole pill and immediately I start getting hot and sleepy, I felt nauseated until I threw up yes the pill made me throw up. I have tried other loose weight pills and not work this pill not cutting my appetite but it is making me very thirsty. But it's only 3 days of taking the meds and 1 day taking the whole tablet I just hope it works..."

Anonymous March 24, 2017

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For Obesity: "I'm 21 years YOUNG. I started taking phentermine In December of 2016, I weighed in at 287 lbs today I weigh 229 pounds. I'm on a 40 carb, 1,200 calorie diet, drink only water and my snacks are nuts or beef jerky. I work out 4 times a week for a hour with intense cardio. I also work in the fast paced OR so I don't have time to think about snacking. I'm happy with my results. I'm continuing to take phentermine for another month or so and then I'll be on my own using just the knowledge of what's right and wrong. Yes I did cheat twice throughout my diet. And each time afterwards I felt so disappointed and like it wasn't even worth it."

   
9.0

DessyOR March 24, 2017

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Adipex-P (phentermine) for Weight Loss: "Lost 45 lbs on this medicine and couldn't be happier. This pill works. I have kept the weight off for 6 mos now and desire to lose another 15 - 20 Lbs so I'm going back on it. My belly has shrunk! 5 ft 2 started at 212 lbs, now 167 lbs. Some people that haven't seen me in a while do a double take. Counting my calories, exercising 5 days a week, keeping a food diary and drinking lots of H2O helps too. Good luck all!"

   
10

Vogue13 (taken for 6 months to 1 year) March 24, 2017

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For Weight Loss: "I started taking phentermine 30mg on Feb 25 201. My start weight was 244.9 lb , now March 22 2017 I weigh 224 lbs so I've lost 20 lbs . I drink nothing but water LOTS of water and eat at least 3 small meals a day vegetable, chicken, tuna , etc and snack on nuts. I do exercise at least 3-4 times a week , I stop eating after 7 pm my goal weight is 160! I just want to feel good and like what I see when I look in the mirror."

   
10

ambermmx, March 22, 2017

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For Weight Loss: "I went to my Doctor yesterday and he prescribed phentermine 37.5 My starting weight is 179.6 On 3/21/17. I'll Update my weight next week to let u know how much I have lost in my 1st week."

   
10

Joha2017 (taken for less than 1 month) March 22, 2017

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For Weight Loss: "Today is 3/22/2017 Goal 140pnds I am 41 years old 5ft and I weigh 183.6. I have a definite food addiction. I eat for recreation & boredom. I love sugar, candy cupcakes etc. June 2016 at 159, I tried plexus slim without any success for 40 days.. The end of July I started shakology & the 21 day fix . Strict diet, no sugar gluten or dairy I lived on chicken, fruit and sweet potatoes for 21 days. I became irritated and bored. Lost 7 lbs and learned a lot about food. After an injury in Dec 2017 & bed rest I put on 30 pnds. I asked my doctor about contrave & he suggested I try Phen 37.5 first. So it's day 1. I am depressed & lack motivation due to fear of failure. Thank you all for your testimonies. I am inspired. I will post again in a week❤️"

cheriberry March 22, 2017

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For Obesity: "Background: Over the last 5 years since I was pregnant, I gained 50 pounds and have only been successful at losing 20, after not getting past 150, I gave up and gained back the 20 I lost. Since then I have still put in attempts. I talked to my doctor about it yesterday and he decided to prescribe me this medication for obesity. By the way, I am a female just under 5'2" and I weighed up to 177 last year. Since last year I bounce back and forth between 176 and 172. Yesterday I weighed myself and I am starting this journey at 172. Today is Day 1: So far I feel sooo energized instead of my usual sluggish feel and I LOVE it! I have been so productive today and have done many tasks. So far so good!! I will be back to review more in the future!"

   
10

Errka March 21, 2017

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For Weight Loss: "Spent the last year eating very healthy and exercising with very little weight loss results. I got desperate last week and went to a weight loss clinic and got on Phentermine and B12 injections. Weighed in last Tuesday at 169.7lbs and went in for my one week check up and weighed 165.3 with jeans on and last time I was wearing shorts so I've lost about 4.5 pounds in one week. You have to push through the first three days of jitteriness and insomnia and then it levels out and you feel normal. I have experienced some pretty gnarly dry mouth despite how much water I drink but it's worth it if these results keep up. I'll update again in a couple weeks!"

   
10

JackieB88 March 21, 2017

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For Obesity: "I started Phentermine 37.5 mg on 3/11/2017. It is not affecting me at all and how I know this is back in 1997--I took "phen-phen" and lost over 30 lbs in a month. I would get "the feeling" you get and I had bad insomnia. I am 45 years old and 5'1 and weigh 203. Back in 2014, I weighed in at a whopping 247 and by 2016, I have been hovering right around 203--hence, why I decided to try Phentermine again. I lost the previous weight by counting calories and it did indeed work. Could it be that the Phentermine is not working because maybe I need Adipex instead? IDK, but it has me really flustered. I can sleep and eat. It's crazy. "

   
3.0

TerriLeigh71 March 21, 2017

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For Weight Loss: "I started the pill on 3/18/2017 SW was 302. I stepped on the scale today 3/21/2017 and was down 5 pounds 297. I am 5'9 with curves (built like Serena Williams) so my weight is in all the right places just want to lose my arm and stomach fat. I also workout 5 times a week and eat pretty healthy. I drink a gallon of water M-F between 8 AM and 5 PM. I tend to pee a lot, I don't be hungry as I use to be. I sleep pretty good, and I only experienced a headache once so far."

   
10

Nicholette12 March 21, 2017

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For Obesity: "When I started phentermine I was 219 I've been on the pills for 3 weeks and I've lost a total of 18lbs in just three weeks I work out three times a week for a hour also cut drinking soda juice and a liquor only drinking water."

   
10

Kk262 (taken for less than 1 month) March 21, 2017

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For Weight Loss: "I started taking phenyermine 37.5 on March 5, 2017. I am 28 with 3 kids. I've had trouble losing weight from my last pregnancy which was over 3 years ago. I'm very short so any little amount of weight on me looks like a lot compared to taller or even average height women. My goal is to lose at least 60 lbs. so far I have lost 10 lbs. 6 of those lbs were lost in the very first week of taking this. I don't eat much and I definitely need to work on water intake but I only drink water. I exercise and walk often."

   
9.0

June2011 March 21, 2017

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Ionamin (phentermine) for Weight Loss: "I took'm 1978. One a day. I wanted to loose 30 pounds 3 months after my delivery of my second child. I took diet pills back on the 60s and 70s, by doctors with no restrictions. I was 26, my body tolerated them well. Not Mentally, I feared gaining weight. I was hooked. It did affect me mentally. Yeah, It gave me energy. Energy any mom with two kids and a baby that worked, kept a house clean Etc.. I was tired but down to 130 on two months, But I couldn't give them up. I took them for over a year got down to 114. Tight muscles and looked great. But I crashed after the divorce and ended up on a pysc ward with severe depression, don't take them!! I got cancer a few months later. They are as addictive as speed. Loose weight the healthy way!"

   
8.0

Lindy1978 March 20, 2017

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For Weight Loss: "I started it today 3/17/19 and after 30 mins in the pill I just feel this weird feeling in my whole body I don't know if is the adrenaline or jittery. I just hope it works I've read good reviews on this. Btw my insurance didn't covered I had to pay 35$ which is not much."

   
8.0

Anonymous March 19, 2017

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For Obesity: "During my appointment with my Dr on February 11-2017 for a refill of my chronic pain meds and to seek a better solution for my sleeping pills I weighed in at 296, I asked my Dr if she would give me something that would help curb the appetite. I started phentermine the next day. It is now March 18-2017, I now weigh 271. It works but you need to drink water and lots of it. I am now experiencing severe constipation. The medical guidelines say for short time use and I see why. If I were able to workout I'm sure I would be losing more weight."

   
10

Anonymous March 18, 2017

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For Obesity: "I have been on Phentermine 37.5 before to help me loose weight. I have weight loss surgery over 2 years ago. Lost 63 lbs. MD gave it to me to help with the last 20 lbs. Goal was 150. I have never been small, but wanted to loose the weight because of diabetes diagnosis. I took phentermine for 3 days , couldn't tolerate the nervous side effects and gidderness. I tried to decrease it to half a tab, but it didn't seem to help with my appetite. I have gain approx 10 pounds back, tried to loose it without any luck. I thought I would try Phentermine again, but too afraid to because of the nervous feelings. "

   
1.0

Angie P March 18, 2017

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For Weight Loss: "I'm a mother of two and my youngest is 5 so I can no longer use the baby fat excuse. I spoke to my doctor and she told me that I am very unhealthy and I need to make a life-altering decision. I finally did I want to live a longer life. I'm 27 years old I'm 4ft 11in. March 16, 2017 was my first day taking Phentermine. I weighed in at a 187lb. March 18, 2017 I just weighed myself I'm 185. This is the beginning and I've lost 2 pounds. When you know you've lost a pound in day any side effects are worth it. I'm currently experiencing dry mouth, nausea, it is definitely an appetite suppressant because I haven't been hungry. I can't wait to see the effects by next week!"

   
6.0

Stephanie Martinez March 18, 2017

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Adipex-P (phentermine) for Weight Loss: "Addition to my original post: 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. ***3/17/17 *** now weigh 154.6, total weight loss of 14 lbs. in two months. This month will be my last month bc my body fat and bmi will most likely be back in normal range"

   
10

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

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Adipex-P (phentermine) for Obesity: "Started taking it today. Not really feeling any effects. Still hungry and Dr said would have lots of energy .... Not feeling that part yet lol I'm at a whopping 262 depressed and hope this works to help Me"

   
6.0

Toobigtofail March 17, 2017

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For Weight Loss: "I lost 70 lbs in 6 mos. on Phentermine 37.5 . I had to have surgery and the surgeon required me to come off of it 3 weeks prior to the surgery and 3 weeks post surgery, then I had some complications following my surgery... I gained 23 lbs back which was very disappointing. I just picked up my new prescription today and can't wait to get started again! The only side effect I had in the past was the first 3-4 nights I had trouble sleeping.After that no problem!But the main key is drink plenty of water ! It does really work and you are not hungry!"

   
10

Jgirl58 March 17, 2017

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For Weight Loss: "After I gave birth to my daughter I went back to my pre-baby weight until I got the birth control implant in my arm and I gain close to 70 pounds in a year. I started Phentermine in September and its now March and I have lost 75 pounds. I a busy mother so I exercise when I can which is not often. I do portion control and I only drink water. This pill gave me my old life back."

   
10

Deedeex3s March 16, 2017

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Fastin (phentermine) for Weight Loss: "This doubles my heart rate, feel extremely nauseated, and like I'm bout to die"

   
1.0

Cntlicker (taken for less than 1 month) March 15, 2017

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For Weight Loss: "Just got my script for this Phentermine today. I am 5'8 and 244 lbs. My goal weight is 160. I just have lack of motivation and energy since my work schedule is so crazy with traveling. My doctor and I made a plan for me to work out for at least 30 mins 5 days a week and eat dinner prior to 7 pm at least 6 days per week. My other issue is binge eating and constantly being hungry at odd times. I really hope this helps so I can get my confidence back and get my body back in order. Starting tomorrow morning. Will follow up in a week to provide some feedback."

eqc06 (taken for 1 to 6 months) March 15, 2017

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