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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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Condition DownUp Reviews Compare Avg. Ratings DownUp
Obesity 196 reviews 56 medications
   
9.1
Weight Loss 1030 reviews 27 medications
   
9.0
Summary of Phentermine reviews 1226 reviews 9.1

Reviews for Phentermine

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For Weight Loss: "So excited, I started phentermine, on 5/12/15, Weighing a whopping 282lbs, The largest I've ever been. So far have had a lot of energy, always thirsty, only for water tho, I've completely cut out sugars, snacks, and fried foods, been riding 1mile on exercise bike per day. I'm praying for good results, my 1st weigh in is scheduled for 6/10/15. This is my first time trying phentermine. I slept really well last-night, And overall I feel great. I'll Keep you guys posted."

LAYDIE TEE May 13, 2015

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Fastin (phentermine) for Weight Loss: "Fastin is an excellent dietary supplement for me. In the morning, right as I wake up, I take the little guy. The pill tastes like what I would imagine what baking soda would, but oh well, I am not sucking on it. It takes about 20-30 to give the first kick. That kick is the rush that says "I need to get moving or I need to get to the gym." The first time I took the pill I did get a little jittery and nauseous but once I started working out and drank water I started to feel fine. About an hour in I hit phase 2. Phase 2 is the spunk and mood booster. I feel awesome and amazing like I know what I am working for. Again, first day I felt a little dizzy and euphoric. Then there is phase 3 the come down. Drink water and eat a solid. I lost 100lbs."

   
8.0

happythighs (taken for 1 to 6 months) May 13, 2015

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For Weight Loss: "Today makes 3 days on Phen.. I started in the afternoon. The first day it worked great.. Day 2... I ate breakfast around 9 ish, an took a 1/2 pill 30 mins later an a 1/2 again around 400 pm.. it worked great.. I was not hungry at all, no headaches which I got my last time on phen.. I did have some dry mouth around 9 or 10pm, but went to bed as usual. Day 3.. back to work took pill around 830 after breakfast, I was kind of hungry around lunch.. which is 1130 so I tried to space the time between pills so I took it around 1pm with a snack.. Today I want to eat more.. so I am going to opt for taking it as I did day 2... I need to incorporate more water, but have lost 2 pounds in 3 days.. I have not worked out, but have walked moderately..."

   
8.0

AimingToBeHealthy!! May 12, 2015

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For Weight Loss: "This is the 3rd time I've been on phentermine. The first time I lost about 40 pounds and that was about 3 years ago. This time I started on 4/28 and started out at 202. I have two children 9 and almost 2. No matter how hard I tried I coul dnt get past 200 after having my 2nd child. My scale is usually with a couple pounds of the doctors and I weighed myself for the first time since I started and it says 189. My actual goal is about 175/180. I'm 5'8" and in high school I weighed 170/175 I looked healthy and I was happy with myself. I'm afraid if I weighed less than that I would look sick. IF my scale is right that's awesome and I am so close to my goal. I don't plan on weighing myself again until June I will update then."

   
10

jaycenemma (taken for less than 1 month) May 12, 2015

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Adipex-P (phentermine) for Weight Loss: "This is the second time I'm taking this pills. The first time I lost 30 pounds in just a few short weeks. Now I've been on them for almost a month now and I've lost 17 pounds. Theses pills really help curb your appetite and I don't even think of eating."

   
10

Baychik May 10, 2015

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For Weight Loss: "This is my second time on phentermine. The first time I changed nothing and lost 20 lbs. That was in 2012. I kept the weight off after I stopped the meds, too. But I had a baby via c - section in November and I'm only down 2 lbs after gaining almost 30. Diet and exercise didn't cut it. I tried other things first but finally got back on phentermine Thursday (May 7) after realizing I just kept gaining and that I've crossed the line of overweight and am teetering on obesity. I weighed 171 on Thursday and I weigh 167 today (May 9). I'm on a high protein diet but few changes otherwise (so far). The doctor has my goal weight at 148. Last time my regular doctor prescribed it, but this time it's a dietician and I love all the additional info."

   
10

AM0904 (taken for less than 1 month) May 9, 2015

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For Weight Loss: "Phentermine was the ONLY prescribed weight loss pill that actually worked for me. Before I started the program I had a complete physical by by doctor. When she prescribed this medicine to me, I also decided to change my eating habits. I kicked the sodas, sugars (sweets), fried foods and other junk. I partnered with Diet2Go and order all of my pre-measured food from them. Once my food arrived, I then started taking Phentermine. I only drank pure water with lemon juice - NO SUGAR. I made sure I started taking the medication the same time each morning (9:00 a.m.), ate breakfast, lunch and dinner all in sync, everyday! By the end of the month (30 days to be exact) I went back to my doctor for monitoring - lost 18 lbs in 30 days! It works."

   
10

Clarise (taken for 1 to 6 months) May 9, 2015

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For Obesity: "My Dr started me on phetermine 37.5mg in February 2015 I lost 13 pounds my first month and I feel like I'm losing more but I have lost only 5 pounds since I weighed myself last a few weeks ago but all my clothes are loose and my bras fit width wise better I'm actually down from 48ddd to 44ddd. I'm confused I'm down 2 pants sizes too. I started out at 330 and in now 312. This is my second month I have 2 more months of being on this pill. I'm was hoping to be down to 250 by that time I just started taking cinnamon capsules on top of the pill makes a big difference in my energy. Good luck everyone "

   
8.0

mpointer4 (taken for 1 to 6 months) May 7, 2015

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For Weight Loss: "I just started Phentermine today (5/7/15) at 10 am. I'm not exactly sure what side effects to look for."

   
9.0

KittyNoira (taken for less than 1 month) May 7, 2015

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For Weight Loss: "Hi everyone this is my second update, its been 2 weeks on phen. My starting weight on 4\22 was a big 226. My first weigh in I was down to 214 and as of today 5\7, I weigh 207. 19 pounds in 2 weeks!! But more importantly I wanted to make sure that everyone please please do not take dry mouth lightly it causes cavities... I developed my first cavity ever in 22 years , Because of dry mouth .. please drink\sip on water all the time and chew sugar free gum or suck on candies. Brush your teeth after every meal, it will help keep the bad bacteria out . I hope I do not get any more cavities..and I am hoping you don't either. Other than that I'm pleased with the weight loss and continue to work towards my goal (140lbs)"

   
6.0

denniii23 (taken for less than 1 month) May 7, 2015

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For Weight Loss: "I started taking phentermine about 5 weeks ago or 6 weeks to be exact I started at 176 and now thank god I'm 152 I have a couple more To go but this really suppresses the appetite."

   
10

Rosie143 (taken for 1 to 6 months) May 6, 2015

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For Weight Loss: "Ok I started taking phentermine on 5/3/15... I was so Curious to see how this pill works so I weighed myself today and I loss 5 pounds in 4 days "

Darkkiss May 6, 2015

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For Weight Loss: "Just started this today. I lost over 50 lbs without help, just watching my diet and exercise. Recently replaced my IUD and my weight suddenly jumped by nearly 15 lbs in just 3 months! Nothing else has changed. I still eat relatively clean about 85% of the time. Hardly any processed junk, cut out most sugar, no soda. Lots of veggies, fresh fruits, lean meats and working out 5-7 days per week for about an hr (mix of cardio and weight training). Still gaining weight! :( Seems I need a little but of help at this point. Talked to my Dr today and requested Phentermine to see if I can just dial back to scale again. Hoping it helps... I will check back in to give an update in a couple weeks...sooner if results are really good. :)"

GypsyWitch32 (taken for less than 1 month) May 6, 2015

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Adipex-P (phentermine) for Weight Loss: "I started adipex three days ago and I've already lost 3 pounds. It really curves my appetite and I'm always craving water, which is great. I have a boost of energy like never before. I was able to do 45mins on the treadmill which felt like I had only done 10 mins. So far I'm loving it. Im 219 now and by the end of the month Im hoping to be out of the 200+ club. I will update in four weeks ☺"

WifeyNmommy May 6, 2015

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For Weight Loss: "I started on 5/3/15 starting weight at 241lbs. I feel very energetic, I have been going to the gym doing a lot of cardio, and I feel great, I can see a big difference already but I will not weigh in until 5/22/15 so I will keep you posted. I have no problems sleeping, I do drink a lot of water to avoid dry mouth."

LadyJayScorpio May 6, 2015

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For Weight Loss: "Started the pill April 30th weighing 270.8. First day felt a little different. Was really hot the whole day. The pill completely took away my appetite had to force myself to eat because I was getting an head ache. Next day was much better still didn't eat at all maybe 500 calories I wasn't hot at all, felt very good but a little nervous. As of yesterday I weigh 262.4 a total of 8.4 pounds lost. Went for my weigh in yesterday and the nurse was very happy felt really good. I did change my eating habits grilled or baked chicken, fruit, yogurt etc. I do still eat something sweet maybe 2 times a week but every small amount. I do want to start working out would lost alot more. My mom is also taking the pill and lost 8 pounds We started on the same day"

   
10

Anonymous May 5, 2015

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For Weight Loss: "Started diet on 4/12 (236.8 lbs) using my fitness pal app 1200 calorie diet. Lost 8.3 in 7 days. Began Pentermine on 4/21 (228.8lbs) today is 5/5 and I'm down 14lbs from Phentermine 22.5 lbs total since 4/12. Goal weight is 175lbs. Last seven days I lost 4.4lbs so the weight loss slows down after the first weeks. I've been running 3 miles every other day and workout 3-4x a week. Drink plenty of water. Goal weight 175lbs. I'm on a 600 cal a day diet and I rarely go beyond 450 calories. No side effects, I take weekly pics, huge difference even over the last 7 days, I look 10 years younger already. I'm 45."

   
10

Thomas R May 5, 2015

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For Weight Loss: "My Doctor prescribed me one 15mg tablet of phen to take in the am daily. I just got done with my 4 months. I started January 1st at 223lbs today I am at 186lbs. I went from a pants size 18-20 to 14. The only negative was the dry mouth (gave me a reason to drink more water) and sometimes confusion. All in all a great kickstart."

   
10

SJohnson15 (taken for 1 to 6 months) May 5, 2015

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For Weight Loss: "I just started taking phentermine today like around 5am my starting weight 260. Hoping to see some results real soon no rush. My Dr ask me to so a lot of cardio and also suggested that I get a bike. And eat healthy... I'll be back with my results good luck"

Darkkiss May 3, 2015

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For Obesity: "I started taking phentermine in the beginning of January, my 40th birthday was April 5, I started it 206 pounds and I cannot believe that I would ever be that big. My goal by my 40th birthday was to be down to 170 pounds and I made it to 172. As of today I am 165 pounds and when I started I was considered obese. I am now only 10 pounds above being within a normal wait for my height on the BMI scale. I will be taking my son to Jamaica on June 5 for his graduation! And I cannot believe the results I've had on this medication. I'm not blind to the fact that gaining the weight back is a real possibility! It scares me! But I'll pray with dedication, Exercise, and learning to eat right, I will be successful! My phentermine phase is done and I will keep up the good eating and exercise"

   
10

Imahealthy40lbslighter May 2, 2015

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For Weight Loss: "I gained about 35 pounds from Implanon and couldn't seem to lose the weight after I got it removed. I tried for almost a year with absolutely no results until my doctor prescribed me phentermine. This is the first time in over a year in seeing the number on the scale go down!!! I'm still on my first week, so I'll post again once I'm done with this medication. I highly recommend and the only downfall is sleeplessness at night but I just take some supplements to help with that."

   
9.0

After the Implanon nightmare... May 2, 2015

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For Weight Loss: "WOW, I am 27yrs, 5'5, and weighted in at 196lbs, and I just started taking the meds on Monday plus I have been going to the gym to tone up my body, now before I even weigh myself again, I just wanted to say, You ladies have some amazing stories with taking 37.5 and Congratulations to you all with your weight loss success. Hopefully when I get back on the scale I will at least be back to my normal weight at 160 lbs (Goal results on May 23rd) will give updates!!!"

   
9.0

SouthernBella (taken for less than 1 month) May 1, 2015

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For Weight Loss: "I started last month I was wearing 215.. I'm now down too 206.. Could have lost more but I did miss 2 weeks. So that messed me up.. But I'm excited and about too really hit the gym too see how much more I can loss.. Soo 2 more month... They really do work. I feel better.. Just dry mouth that's it."

   
9.0

1086classyme April 29, 2015

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For Weight Loss: "I started 15 months ago on Phentermine. I originally weighed 312lbs and had gastric bypass surgery 3/98. I lost 162lbs and felt great.Over the past 8 years,I managed to put 50lbs back on.Not hard to do when your eating junk. The mg were increased after a few months to 30mg and then to 37.5.To date I have lost 50lbs but It worries me to see so much weight loss in so little time from some of you. I am on a food plan that my doctor set up for me. She gave me a list of great foods, good foods and if your going to eat these foods, dont do it often.LOL. I want to keep it off and be able to eat like a real person.I know if I dont eat because I want to lose it fast, for me,I will gain it back.I eat 5-6 meals a day and it works."

   
9.0

getting skinny (taken for 1 to 2 years) April 29, 2015

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For Obesity: "age-28 female Starting weight- 199.4 Started back on phentermine 37.5 on Monday 4/26 at 199.4 on 4/27 down to 194.9 On 4/28 193.0 -- that's over six pounds in three days !! My goal is 150 range. The only issues with the meds are insomnia / dry mouth and I've been very irritable but that could also be due to pms!! The dr is keeping me on for three months id love to be close to my goal Then ! Good luck to everyone !"

   
9.0

Charleypenny April 29, 2015

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