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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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User Ratings

10
   
57%(547)
9
   
23%(221)
8
   
11%(101)
7
   
5%(42)
6
   
2%(17)
5
   
2%(19)
4
   
1%(5)
3
   
1%(5)
2
   
1%(5)
1
   
2%(11)

Phentermine review summary

9.1/10 Average Rating

973 Ratings with 869 User Reviews

Compare all 32 medications used in the treatment of Weight Loss.

Reviews for Phentermine to treat Weight Loss

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Review by Ibi (taken for 1 to 2 years):

User Rating:  
   
10

Love it! I used to weight 186 and after taking them for a month I dropped to 171 . I've kept my weight ever since.

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March 26, 2015 6:28 PM

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

User Rating:  
   
10

Adipex-P (phentermine): This pill works! I do advise that you eat breakfast wait 30 mins and drink water throughout the day. If you don't get hungry eat something wholesome. My experience with headache, and mood swings was due to me not feeling hungry, yet my body still needed fuel. Listen to your body! I'm at a weight that I'm happy with. I do exercise its my therapy. One seventy three from 205! Also it helps with my blood pressure. Eating is so much easier. I can think about what I need to prepare versus just grabbing the first snack, not so good choice that would satisfy me. Know your body, breath don't over think, be happy. This is coming from me!It helped along with small positive changes. Peace!!

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March 25, 2015 8:37 AM

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

User Rating:  
   
10

Adipex-P (phentermine): I just started taking Adipex. I think so far it's helping me a ton, I'm on 1000 calorie diet plus Adipex. I'm working out every day, this is my 5th day and I already lost 6 pounds. Adipex seems to be helping me from over eating, it seems to be helping me curb my cravings. I have no craving for sweets of any kind, so far so good.

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March 21, 2015 9:13 PM

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

User Rating:  
   
1.0

Adipex-P (phentermine): I was personally not on this pill, but my mom was and currently still is. Though she has lost about 20 lbs in the last month or so, she has been experiencing side effects. First off, she's had severe headaches since starting the medicine. She's had extreme mood swings, and is very nauseas and dizzy at times.

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March 18, 2015 5:03 PM

Review by ItsD:

User Rating:  
   
10

Firstly, I'm 18, 5'4, and 160lb when I started. I've been on it for 3 days and have lost 4.8 lbs. I was going to hold off on my review but I experienced some side effects. This takes insomnia to another level, I would go to sleep at 6-7am just to wake up 5 hours later. These past 24 hours I have felt so lightheaded that I stayed in bed thinking I was going to faint out of dizziness and even while not moving in my bed after waking up, my heart would beat at a thousand beats per second. I drink plenty of water too. I also had unexpected diarrhea. Needless to say the side effects are STRONG. I love the energy boost though.

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March 10, 2015 1:21 PM

Review by stay.at.home.mom:

Been on Phentermine for almost two months and down 13 pounds! Started at 217 now at 203 Can't wait to lose another 25 and be at my goal weight!

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February 28, 2015 12:30 PM

Review by Simple 55:

User Rating:  
   
7.0

Lost overall 27 lbs but now experiecing slow heart rate and decrease pulse. Cold feet and excessive thrist

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February 24, 2015 1:50 PM

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

User Rating:  
   
10

Hello everyone I started my pills Phentermine 37.5 mg on FEB-18-2015 at 337.2 lbs as of today FEB-24-2015 I am 319.4 lbs 17.8 lbs lost and the only side effect is dry mouth so I'm drinking plenty of water but I also take Xenical 120 mg one capsule half hour after my last meal of the day an that 8:30 pm MY weight goal is to get down to 250 lbs an once I hit that goal I will set my goal to 225 lbs going one step at a time. I'm proud of all of you keep up the good work.

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February 24, 2015 10:08 AM

Review by Yvette2k15 (taken for less than 1 month):

On 3 days, haven't noticed any difference in appetite. Going to ask for an increase in mg. I'm on 15mg with 900 calorie diet. But I'm so hungry.

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February 23, 2015 7:28 AM

Review by shaeshae864 (taken for less than 1 month):

User Rating:  
   
10

Adipex-P (phentermine): My knees hurt to walk, my feet hurt to stand...I couldn't take it anymore....I went to doc and weighed in at 287.8...3 days later and I am already down 7.8 lbs. No exercise yet but will when get in the 260's. I feel better already and can't wait to loose another 60.

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February 22, 2015 12:24 AM

Review by Tlynn0511:

User Rating:  
   
10

Started phentermine 5 days ago. No side effects except for dry mouth and feeling tired. No energy or insomnia so far. I'm on a strict diet as well. No exercise. I've lost a total of 6.8lbs! I'll update later with my progress.

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February 20, 2015 12:31 PM

Review by LADYWATKINS03 (taken for less than 1 month):

User Rating:  
   
9.0

I started phentermine on 2/10/2015... weighed in at a whopping 282 pounds...first week and I've dropped 9 pounds.... I love it only 93 more pounds to go to reach my goal. will post again in two weeks!

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February 18, 2015 3:12 PM

Review by Katrina84:

User Rating:  
   
9.0

I've been taking phentermine for 2 months and I have lost 22 pounds. I haven't exercised just my normal active life as a mother and student. The only side effect I've had is severely dry mouth and no appetite. I literally force myself to eat something

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February 18, 2015 7:24 AM

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

User Rating:  
   
6.0

I start phentermine today. Read almost all reviews and I'm excited to start taking it. Seems like it has everything I need. I will try it and come back in a month and let you all know how it has worked for me.

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February 18, 2015 2:54 AM

Review by Wendca:

I started medication 4 weeks ago. The first week I was only taking half a pill. Second week went up to a whole pill. I have side effects of dry mouth, unable to sleep more than 5 hours and some constipation. With all this being said so far I have found positives of losing 11 lbs, watching what I eat, drinking more water and doing portion control. I have back and knee issues so I am unable to exercise so the weight loss will assist me so I can be active in the future. I look forward to starting another month of the medication and losing another 11. My dr. Did say she will only prescribe for 3 months so I will continue to monitor and take what I have learned and implement it in my future to continue with the 60 lbs I need to lose:)

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February 17, 2015 7:49 PM

Review by need to lose 93 lbs. (taken for less than 1 month):

Started taking phentermine on 2/12/15...two days in and feeling pretty good...have more energy. Appetite is hardly there..easy to make better choices....down 3.6 lbs... in two days...so far so good...time will tell...its all about healthy choices...and staying active

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February 14, 2015 5:09 AM

Review by Aaaaggg0916 (taken for 1 to 6 months):

User Rating:  
   
10

Started my pills on December 5th 2014. Not February 4th down 18lbs love it couldn't be happier.

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February 4, 2015 9:32 PM

Review by thaichiks:

User Rating:  
   
10

I started the meds on Monday 2/1/15 and I have seen a significant changed in my hunger. My food intake for the past 2 days has been way less than the normal. I am following the diet plan my doctor gave me and have included an exercise plan. My only complaint is the dry mouth and lack of sleep. I've managed to get about 5-6 hours each night which has me feeling rested in the mornings. And yes I've lost 2 pounds!!!

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February 4, 2015 9:49 AM

Review by Nika 50:

User Rating:  
   
10

I started the medication Jan 9th 2015 at 247 today is Jan 31st and I'm down 10 lbs. I'm happy with the weight loss but if my doctor would up me to whole pill I'd probably really lose weight. I'll see him on the 9th of February and I'm sure he'll increase my dosage. So far I haven't suffered any of the side effects previously mentioned. Also per my doctor if you suffer headaches it means you're not eating enough.

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January 31, 2015 9:48 AM

Review by Tina1996:

User Rating:  
   
10

I'm a 18 year old female, my entire life I've always been overweight and I wasn't able to lose it, it didn't bother me until I gained 40 pounds in less than a year due to being on birth control. I went from 175 lbs to 215, that's when being overweight caught up to me. I wasn't noticing how much the way I looked changed. Until I went clothes shopping and I couldn't fit into a size 16. That was when I went to my doctor and he recommended Phentermine, It has been almost 3 months and so far I've seen nothing but positive results, I lost 31 ponds so far and still going! I bought a size 13 mini skirt, it was too wide! I haven't fit into a size 11 since I was 15. I strongly recommend it, because of it I smile every time I look in the mirror now.

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January 30, 2015 4:37 PM

Review by Gina321 (taken for 1 to 6 months):

User Rating:  
   
10

I started phentermine right before thanksgiving. I am 5"2' and starting weight was 184lbs. It made me not hungry at all. I constantly drank water and ate very lightly. No insomnia first month. I lost 17 pounds. Second month I had to take 3 days off because of the insomnia. If I feel I can't sleep I will skip a day or two. Still only drinking water and eating lightly. No exercise at all and today I weigh 156lbs. Total loss of 28lbs in two months. This month I plan to add exercise to drop more weight. Love Phentermine!

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January 30, 2015 8:21 AM

Review by BusyBE519 (taken for 1 to 6 months):

User Rating:  
   
9.0

Adipex-P (phentermine): My last post was in February 2014. To sum up my experience: starting weight: 161.4, height 5'3. Received two total bottles of 37.5mg pills, which lasted me from February '14 to June '14. I would halve pills, skip days, etc if I felt the need, so these lasted quite awhile. My lowest weight once all was said and done: 141.2 on June 20th, 20.2 lbs lost. Today, Jan 30 2015, I weigh 146.2. I am happy that in 7 months time I've only managed to gain 5 lbs (AND after the holidays thank you very much!). This pill is great, but it's not a miracle. It also won't last forever as you can only have 3 refills a year if you meet the BMI requirement for medical weight loss. Taught me portion control

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January 30, 2015 8:06 AM

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

User Rating:  
   
10

I started Phentermine 37.5 along with B-12 shot on December 31, 2014 @ 294.6lbs as of January 23, 2015 I weigh 278.6 down 16lbs in 3 weeks. This is the truth. Highly recommend to whoever need that extra push to get summer time fine. Will update April 2015. Good Luck Everyone!

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January 24, 2015 11:43 PM

Review by Godz da Bomb!!! (taken for 1 to 6 months):

User Rating:  
   
10

Adipex-P (phentermine): I loved the product! I started June 1, 2014 to August 2014. IN 2 MONTHS I HAD LOST 30 LBS! I was doing Zumba 3 times a week and had a personal trainer to help tone my body with my new found ENERGY. The Personal Trainer was a waste because Adipex with Zumba was doing a tremendous job all on its own. I wasn't craving sweets thanks to Adipex. I cut out fast foods, carbs, and late night eating. Plus I drank anywhere from 1/2 to a gallon A DAY! However, the medicine still made me constipated. I started at 244 and got down to 209lbs. I stopped using it for about 5 months AND THE WEIGHT STAYED OFF, while not eating so healthy.

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January 24, 2015 12:15 PM

Review by reeda44 (taken for less than 1 month):

Fastin (phentermine): Started Fastin on JAN 4th 2014 Start weight 278.9lbs. Current weight JAN 23rd 265lbs History high blood pressure Type 2 diabetic (diet control) Morbid obesity Dysphagia Right knee cap issue Goal is to loose weight to have knee surgery. Is my doctors choice due to dysphagia and other related health issues. Good luck. God bless.

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January 23, 2015 9:15 AM

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