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User Reviews for Phentermine to treat Weight Loss

Also known as: Adipex-P, Lomaira, Atti-Plex P, Pro-Fast HS, Pro-Fast SR, Pro-Fast SA

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.

Phentermine Rating Summary

User Ratings
10
   
52%(1008)
9
   
22%(419)
8
   
12%(230)
7
   
5%(89)
6
   
3%(48)
5
   
3%(55)
4
   
2%(27)
3
   
2%(23)
2
   
1%(16)
1
   
3%(50)
8.7/10 Average Rating
1965 Ratings with 2084 User Reviews

What next? Compare all 29 medications used in the treatment of Weight Loss.

Reviews for Phentermine

"Started the phentermine medication and you do immediately experience less interest in food! Miracle. I needed to have become more informed because although I walk frequently I want drinking enough water. Became very dark feeling. Stopped it after two weeks had lost about four pounds 5’4” 170 yet also still held on to my habit of wanting to snack while reading and relaxing. Restarted today and will hydrate way more. Tomorrow will take half of the normal dosing. Yes heart rate went up by about ten beats per minute. Have low blood pressure so that didn’t matter (well other than additional strain on heart?) As I continue taking phentermine may even have a bowel motion only every other day. Absolutely been consuming more fruits and veggies and meat versus fried and white. Because truly after I’m done with the prescription, I want these habits to stick."

   
10

BG (taken for less than 1 month) May 14, 2019

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Fastin (phentermine): "Do NOT use this product. It’s has a strong caffeine-like effect I took it and had the worst possible headache and felt so nauseated. Yeah no wonder you’ll lose weight, you’ll feel so sick you won’t want to put anything in your mouth. Gosh I feel so lightheaded after taking this. Definitely do not recommend."

   
1.0

So annoyed (taken for less than 1 month) May 10, 2019

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"Hi I’m just here to share my experience on phentermine because I been feeling really bad, I tried to sleep but I can’t and I feel frustrated because I have no energy at all, I feel sick I feel like I need to throw up and I think that my body is asking me for food but I just can’t eat anything. I have 2 days that I haven’t sleep at all I feel like I’m doing drugs or something and I been taking these pills since 3 days ago"

Queen (taken for less than 1 month) May 7, 2019

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Fastin (phentermine): "I was weighing 189 lbs, started taking Fastin 5 days ago. As of today my weight is 185 lbs. The only problem is the restless after taking the pill. My heart beats so fast.... at first I thought I was dying. The heartbeat goes back to normal after 3 hours of taking the pill. I take 1 pill after breakfast and another 1 pill after lunch that’s all. This pill really works"

   
8.0

Chanju May 5, 2019

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Fastin (phentermine): "I took the Fastin pill before reading reviews. Heart is racing I’m jittery and feel like throwing up. I’ll try again tomorrow with half a dose"

   
1.0

Sin May 1, 2019

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Adipex-P (phentermine): "Started Apidex on April 1, 2019 and lost 10 pounds, I went back to the Dr. April 29th and found out I was pregnant after not being able to conceive in 15 years. Dr. told me that Adipex makes you very fertile so I guess that was a boost to me getting pregnant, but now I’m about gain those 10 pounds right back in the best possible way lol"

Lucky one (taken for 1 to 6 months) May 1, 2019

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"Started the pill on a Wednesday and by Saturday I was down 10 lbs!!! From 224-214!!! I’ve read all the reviews and side effects but my experience has been good. Extreme dry mouth and once had a headache but I’ve been okay. Hoping to get down to about 170lb. Good luck everyone!!!"

   
10

Ash (taken for less than 1 month) April 28, 2019

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"I needed to have a total knee replacement, so I started taking Phentermine Spring of 2017, in less than 1 year I lost 65 lbs. I had lots of energy, but did develop a neck pain from this pill. Had the surgery, in 2018, but now in 2019 and I have gained 12 lbs. of it back. Started 1/2 pill today.. see what happens."

   
10

Bren (taken for 6 months to 1 year) April 26, 2019

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Adipex-P (phentermine): "My backstory: On January 1st I started dieting with the low carb diet (a mix between Atkins and keto kinda) then I weighed 213.8lb. And at the end of March I weighed 199.6lb so I lost 14lbs In March I was tired of keto and stared just eating smaller portions of non diet food. At the end of March I weighed in at 195.2 so not terrible but also not the results I previously had. On April 15 I started the slimfast diet. And on April 24 I went to the doctor to get Adipex and weighed in at 191.2lb today April 26 I have just taken my fist Adipex. I’m excited to see how this goes. I’m going to continue to do the slimfast for the first month, I’d like to see 176lb when I get on the scale at my follow up appt. I’m a nurse and I work shift work and on my off days I tend to cheat badly. I plan to workout 3 times a week. My end goal weight as of right now would be 150. I’m 5’5 and I feel like I carry my weight pretty evenly."

Banaye12 (taken for less than 1 month) April 26, 2019

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"I started phentermine 37.5 mg extended a week ago to lose weight. I have since lost 11.9 pounds in one week!! I feel great, no side affects. I am also taking CLA (Conjugated Linoleic Acid) and drinking loads of water. I will report back In a couple of weeks. So glad to make this journey."

   
10

Boymom! (taken for less than 1 month) April 25, 2019

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"I am 21 and on dose of 37.5mg of phentermine, I was put on this because I have Hashimoto’s hypothyroidism and gained about 70lbs so my doctor prescribed this to help me to help with weight. My starting weight was 184 and I am now down to 170. My first day on the pill was March 28th, I have taken my pills for about 3 and a half weeks and am down 14lbs already, my goal weight is 140-145. I haven’t experienced too many side effects other than increased libibdo (like way too much). I also never can eat, it makes me extremely sick when I do because I have to force myself and I’m just never hungry, I also don’t have bowel movements like I used to. I’ve been eating healthy, no gluten at all & no more than 10 grams of carbs a day, I lift weights & do HIIT work outs 4 times a week at the gym"

   
7.0

popcorn April 20, 2019

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"I’m a 54 yr old female at 5.6 and 183 lbs. I have been experiencing weight gain do to IBS and water retention. I am taking Gabapentin and have had cortisone injections due to spinal stenosis. I am only one day (April 17,) in for taking this medication. I took the whole pill as prescribed an hour after breakfast. 37.5mg. Within the first hour, I experienced heart palpitations which lasted within 30 min. I also experienced insomnia. I am looking forward to taking this medication and will follow up within a month. Good luck everyone!"

   
4.0

Chunkymom (taken for less than 1 month) April 18, 2019

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"This is my first day taking phentermine 37.5 mg. I took it 2 hours after breakfast. My typical morning I feel groggy & yawning frequent. I also have RA & take Effexor 150 mg which leaves me fatigue. So hope this will change in energy surge as well as weight loss. I’ve lost 30lb since May 2018 but been plateaued since October 2018. Got my diabetic check & getting off insulin & Januvia but keeping Byetta; hope this is in an aid to continuing weight loss. So far I haven’t felt different, still yawning but this afternoon I feel slightly reved up. My vitals showed my heart beating 103 usually in the 90s. My temperature 98.3 usually 97 5 so could be from the phentermine or walking to o my appointment. Stay tuned. Prayers for success & no issues or complications."

Bunny (taken for less than 1 month) April 17, 2019

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"I lost 48 pounds on phentnermine from September 2016 to January 2017. I noticed that the yellow phentermine worked better than the blue ones. Anyone have any experience with that? I definitely had no appetite and I was on no carb diet. I drank a lot of water."

   
9.0

bonnielee (taken for 1 to 6 months) April 12, 2019

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Fastin (phentermine): "Consumers I've been on Fastin off and on for about a year now. I read most of the comments before posting my experience. I usually only take 1 in the morning before I worked out to give me the energy I need to complete my 5 mile walk. If I'm not working out that day I take half of a pill due to the fast heat rate and slightly the jitters. Too be honest I haven't seen much of a weight lost. Could be I'll start for a week or 2 and then stop. My issue is I need to be consistent with working out and taking the pill to see results. I do believe they would work if taken properly. I read one comment and the consumer said she lost 35lbs so that there is inspiring me to push forward to achieve my weight lost goal."

   
8.0

Rose (taken for 6 months to 1 year) April 9, 2019

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"I’ve used phentermine on and off two times since August of 2017. I’m a 25 year old female. I’m 5’3”- maybe 5’4” on a good day. My highest weight was 184 lbs and I was MORTIFIED. I’m an emotional eater and was obviously using food to cope with life. I took 1/2 a pill a day (I have ADHD and am afraid what one whole pill a day may do). The first time I took these pills, I did not exercise or eat healthier at all- and by October 2017 (two months of half a pill a day) I went from 184- 154lbs! 30 lbs in two months!! It is now April of 2019 and I have gained back some of the weight I’ve lost, but not all of it. I currently weigh 164 lbs- only a 10 lb gain in a year and 8 months. I started taking this pill again- today is Day one! And I’ve decided to incorporate exercise and a healthier diet as well. My goal is to reach 145 or less. I will update at the end of the month!"

   
10

Fattofitgirlxo (taken for 1 to 2 years) April 4, 2019

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Adipex-P (phentermine): "I'm 5'3 female 39 yrs old my starting weight was 213 lbs . The 1st week I lost 15 lbs my biggest loss. Today I had my 1st month check up to get a refill and at my weigh in at the Doctors visit I was 190.8 lb. I started walking at 2 1/2 week mark I could only walk for 30 mins at first then I begin to walk for an hour. I had no energy when I first started taking the pills. I bought some vit b12 and when I took this it gave me the energy that helped me to start walking. I only take one b12 a day. I also take a multi vitamin and fish oil pill. I eat similar to the HCG protocol its not a miracle pill you have to have self control over the things you eat and choose food wisely."

   
9.0

Nat (taken for 1 to 6 months) March 25, 2019

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Adipex-P (phentermine): "My first day was great, I ate breakfast and had no appetite for rest of day. Next few days same thing. However following 2 weeks began to feel hungrier after eating. Think I may have lost 1 pound with exerise in 3 weeks. Would not advise, the effect wears out."

   
1.0

Angela (taken for less than 1 month) March 20, 2019

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"Prior to using 5'4" 165 lbs with hypothyroidism on medication. Working out 3 days a week (500 am). Ate small portions but love carbs. Just completed 3rd week of 37.5 phentermine and adding Keto diet (30 carbs/ day). Continued my earlier exercise. I am now 154 (down 11 lbs). Feeling like I'm pushing my self to eat. Thinking about decreasing dose in half. My goal has not been reached (140 lbs). I will up date in 3 weeks whether decreased dose or not and if I continued to lose weight."

   
10

Mexgirl (taken for less than 1 month) March 17, 2019

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"I absolutely love phentermine which I have taken for weight loss, I’ve taken it a total of 3 times. The first time I had a few problems though- racing heart and serious insomnia. Although, I was taking the highest dose. I did lose ten lbs though. The second time I took 30mg and lost another ten lbs in a month without exercise or dieting. This time I’m really going to try hard to see if I can lose more! I’m 5’6 and currently 177 pounds."

   
9.0

ky24 March 15, 2019

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"I was prescribed Phentermine February 31st I began taking it January 1st. Being that I work at a hospital at night I often weigh myself I first checked my weight I was 322lb I am 21 5’8 I went to the doctor to get help she weighed me I was 318 but before I did go to her I stopped drinking sodas & cut a lot of food out. So I guess that took off some pounds. I was told to take only half the pill because of the side effects but me being me I took 1 whole pill in the morning. I instantly felt the energy I stayed in the gym for 1 hour for about 4 days out the week (she only requested 3) my weigh in day was on the 28th of January I then weighed 304lb so thats 14-18lbs in all from my ORGINAL weight. This is now my 2nd month on Phentermine.I’m hoping to at least be 290lb when I weigh in on the 28th of this month 290 or 280 My goal weight is 190-180"

   
10

TheTech (taken for 1 to 6 months) March 7, 2019

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Adipex-P (phentermine): "This pill is a magic pill! Only if you take it the right way. I've experimented with it, over the past year, the two times I've been prescribed it. Its supposed to be taken 3 months on, then 2 months off. I would take advantage of the 2 months off to appreciate the weight you've lost ,and practice discipline and healthy living. What you won't read is, you will gain it back! This pill will give you crazy ENERGY! Use it! The most effective way, I would recommend taking your dose is on an empty stomach, Preferably, as soon as you get up. So If you get up around 6, take your dose. Around 8:30 or 9 eat breakfast. WATER,WATER, WATER! Is your best friend while on this pill. Which will have your glowing skin glowing! If you don't drink water or a low sugar flluids with this pill, you will have dry mouth, mood swings, and irritability. I will guarantee it. Yes, this is my personal experience."

   
10

Tika March 5, 2019

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"I was just prescribed phentermine 37.5 mg today! I am excited because I have always had issues with my weight. I am 5'10 and weighed in today at my appointment at 267lbs. I have RA and due to that, its difficult to find good exercise options without aggravating symptoms. My doctor advised me to start out with half a pill in the morning for a week and then increase to a full pill thereafter. My doctor also advised me to reduce my calorie intake to 1,400 a day and then incorporate exercise after 2 weeks. My goal weight is 210lbs. I am hoping that this will help jumpstart some weight loss so I can reduce other medications that I take for pain. I'm seriously hoping this helps to get at least the first 20-30lbs off so I can be on the road to living a much better life. My only question is, what is the average amount of weight to expect to lose per week as long as I stick to the treatment plan that has been laid out for me?"

chauntieg87 (taken for less than 1 month) March 2, 2019

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"I have only taken this pill for 11 days now and in 11 days I am already down 6lbs. It has greatly reduced my appetite, which I have never had success with with any other weight loss pill. I do have a slight headache but I am not sure if it’s due to this pill or the other one I am weening off of. I am experiencing some insomnia but over the last two nights it has been better so I am hopeful that will decrease as time goes on. I have way more energy. No dry mouth. No nausea. Due to being gone 11-12 hours per day for work, I am not working out. I am paying attention to portions but otherwise I have not changed my diet much but am still seeing results. Very satisfied so far."

   
9.0

Cmorelli88 (taken for less than 1 month) February 24, 2019

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"I work overnight and I've struggled to lose weight due to eating right after work and before I go to sleep. I use to work out and have never had a problem doing so but working long hours and 2 kids all I wanted to do was sleep when I could. My motivation was seeing a pic of me on a family vacation right before Christmas and just seeing how swollen I looked. I started taking phentermine 37.5 on January 10, 2019 weighing in at 190lbs. I am 5'4 36yrs old and today February 21,2019 I am down to 177lbs. No exercise only better eating habits. When I get off work I only drink a smoothie for breakfast. When I wake up I eat a salad. I don't starve myself but this pill suppresses your appetite big time! I drink water everyday. It makes you more aware of what you eat. I lost 12 lbs in exactly 1 mth and I'm hoping to be at 166 by March 10...my goal is 150 by April. I will post back on that day with my results. Goodluck to everyone!"

   
10

Steph February 21, 2019

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