Skip to Content

User Reviews for Phentermine

Also known as: Adipex-P, Lomaira, Suprenza

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.

Condition Avg. Ratings Reviews Compare
Weight Loss
8.7
   
2,065 reviews 42 medications
Obesity
8.7
   
548 reviews 62 medications
Summary of Phentermine reviews 8.7 2,613 reviews

Reviews for Phentermine

For Weight Loss: "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

0 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "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

0 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Adipex-P (phentermine) for Weight Loss: "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

9 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "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

0 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Lomaira (phentermine) for Obesity: "I've been using Lomaira for about 2 months. My doctor recommended it when I was pre-diabetic. She felt that if I lost weight it could prevent me from developing diabetes. 2 months later, I've lost about 16 lbs. My blood test came back with a significant improvement. I hope I can keep the weight off and can hold off diabetes. After I lost the first 5 lbs, I realized that I could actually change my life, so I started going to the gym 3 days a week and eating healthier. Nothing like a crash diet, but definitely better than the junk I was eating before. I will update this review in another month."

   
10

summerblonde (taken for 1 to 6 months) February 27, 2019

0 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "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

6 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "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

12 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Obesity: "I have been taking the higher dose of Phentermine for 2 1/2 months. The lower dose stopped working within a few weeks. I am eating about 1200 calories a week and losing 1-2 pounds per week. Nothing drastic but slow and steady. I like how I feel with more energy and I don't get hungry making it much easier to limit my calorie intake. I am very worried about what is going to happen when I can't take it anymore. My physician is allowing me to take it for two more months but I still have 80 pounds I want to lose. She has suggested switching to Qysmia, Liraglutide, or Lorecaserin. I wonder what others have done since you can't take phentermine long term. Have some just taken a break and then gone back on again for another limited time.?"

   
10

srf1972 (taken for 1 to 6 months) February 19, 2019

1 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Adipex-P (phentermine) for Weight Loss: "Starting weight 360lb week and half later 338lb. I'm super impressed"

   
9.0

Candyman (taken for less than 1 month) February 12, 2019

14 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "Update: I have been taking phentermine for about 6 weeks (half pill first week and 37.5 pill since). Starting weight was 178 and current weight is 160.4. So I've lost around 17.5 lbs. in 6 weeks. I haven't been working out, but I've been keeping track of my steps and making sure I'm meeting my daily goal. I've been sticking to a 1200 calorie/day plan and drinking only water, except one hot green tea everyday. Tracking everything on myfitnesspal. No new side effects, just thirsty and a little dry mouth. I lost about 13 lbs in the first 3 weeks but then didn't loose anything the next week. Luckily, it picked back up again and I've lost around 2 lbs each week since. I hope all is going well for everyone!"

   
9.0

BuckeyeGal (taken for 1 to 6 months) February 9, 2019

13 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Obesity: "Annie, I first took phentermine n 1987 and lost 53 pounds. I got it off fast too. One reason is because I was only 27 years old, I exercised at least every other day. In the beginning I cut out all alcohol, changed my eating habits. Switched to Diet Coke, ordered the kids meal, no fries. I went from 165 to 112. I still take it intermittently to maintain You’ll find as you age your body shifts, and now it is what I eat not just how much. No fast food, I keep my carb intake way down. Stopped drinking sodas. I take one in the morning early, and sometimes a half pill in the afternoon. Another thing that really helped expedite my weight loss was eating holding silverware in my left hand to eat. I only eat when I’m hungry. And one thing I think is very important with me is I do not eat while driving or talking on the phone. When I’m home I wear leg weights..burns calories and tones muscle."

   
10

Lauralee (taken for 5 to 10 years) February 8, 2019

4 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Lomaira (phentermine) for Obesity: "This product has worked really well for me. I have no side effects and tons of energy. I have been able to stay on track with what my nutritionist has suggested for the first time. I can actually control what I eat. I am getting closer and closer to the BMI my doctors said I need to get to to be healthy. It is going to be a long journey, but I have tried everything before this and nothing worked. This is the first time I have seen results and I am sticking with it. Its been 6 weeks so far and I hopeful that this will help me reach my final goal weight."

   
10

JenK (taken for 1 to 6 months) February 8, 2019

2 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Obesity: "I just started on this medication 1/31/19. I take it @ 10am every morning. My starting weight is 210 and I’m 5’4. Even though I’ve only taken it a short time, I find myself feeling full and I have to force myself to eat. No side effects which is very good. So I’m hoping when I weigh in on Thurs, which will have been a week, I will have lost a couple pounds. I don’t don’t know how fast this drug works or if you have to work out with it. Can someone please give me some advice? I would so appreciate it!!"

   
8.0

Annie (taken for less than 1 month) February 5, 2019

3 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "Used this med many times. First time worked the best. Certainly does lessen the craving for food. As I recall, I kept pretty busy on this med too as it's quite activating. Don't take before bed!"

   
9.0

Pocariboy (taken for 1 to 6 months) February 5, 2019

2 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Adipex-P (phentermine) for Weight Loss: "So on January 18, 2019 I got Some adipex from my doctor . I’m 19 , 4’11 and was 160lb it’s been about 7 days and I checked my weight yesterday andI lost 4lbs . I currently weight 156lb . I’m on a low calorie diet as well with everyday basic exercise (walking, cleaning, cooking, shopping,chasing after kids lol) . So far it’s been great !"

   
10

Pdollaa (taken for less than 1 month) January 26, 2019

14 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Obesity: "Sunday will be my first day to take the drug. Any suggestions??? Any special diets or exercise? I’m nervous and excited all at the same time! Wish me luck and give me suggestions please. Oh btw I’m a female, 5’10 and weigh 318"

Lillajah02 (taken for less than 1 month) January 25, 2019

2 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Fastin (phentermine) for Weight Loss: "I was on adipex off and on for a few years. Fastin seems similar to it. You really have to drink plenty of water and move! It boosts your metabolism giving great energy and alertness. I've started with only half a pill. Just as I did with adipex. I'm hoping to see some weight loss with it!"

   
9.0

JessMarie76 (taken for less than 1 month) January 24, 2019

1 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Obesity: "Hey, I just started today, and I am very excited about it! Hopefully it will work on me because I really need a support for losing weight! As of today 1/22/2019, I weigh 302.2lb and I am 30 years old. I will share my experience on 2/22/ 2019."

Summer January 22, 2019

10 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "47 year old male, 230 lbs, 5’-9”. Currently taking Phentermine 35.5mg. Following recommended dosage by taking one pill a day, a half an hour to an hour before breakfast. Altered my diet a little, with healthier choices, but not much. Started an exercise routine of body weight & dumbbell exercises, 6 days a week, half hour per day. Started dosage on my second week of exercising per doctor recommendation. Lost 10 lbs in 12 days. I have a lot more energy & feel great all day. Not as hungry & is easier to eat smaller portions. Experienced very slight euphoric feeling the first few days. I do experience a very slight tingling in the feet for most of the day, every day, just annoying. Noticed a slight drop in libido. Only plan on taking for 3 weeks, then will take a break until hitting a wall with exercise & diet. What I see on line is to only take for a few weeks & to only take the recommended dosage, since it can be addictive. Overall think it works great."

   
10

Some review guy (taken for less than 1 month) January 22, 2019

4 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Obesity: "I'm a 36 year old female, 5'2", hypothyroid, autoimmune disease and PCOS, mommy of 1. Starting weight 178lb. I started adipex on January 2nd. For the first week, I took half of a pill each day. Since then, I've been taking one 37.5 pill each day. The first 2 days I had a bad headache. I haven't had any caffeine and have had enough energy to get through the day. I'm drinking a ton of water. I've been drinking only water and eating 1200 calories a day. In 2.5 weeks, I've lost 12 1/2 lbs. I'll update again next month. Good luck to everyone!"

   
9.0

BuckeyeGal (taken for less than 1 month) January 20, 2019

12 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Lomaira (phentermine) for Obesity: "I habe no energy from this pill after I take it I'm very tired. I read how other people get energy I've been taking it twice a day before meals is there any advice any one can give me"

   
3.0

Summer (taken for less than 1 month) January 17, 2019

5 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Fastin (phentermine) for Weight Loss: "I've only been taking fastin XR for 3 days so I can't report weight loss yet. But so far I love this stuff!!! Total energy, alertness, appetite suppression. I don't take the full dose of pill at a time. So far I've only needed one pill per day, I break them open and spread it over 5-6 doses. That way the dose isn't too intense. I'm a person who snacks all day and taking this I'm really not hungry. I eat when I get a little weak so I know I need food but I don't get true hunger pangs. Also I normally sleep about 10 hrs a night. I've only needed 4-6 hrs of sleep each night and wake up totally alert. I have no doubt I will reach my goal weight using this!"

   
10

Jj (taken for less than 1 month) January 6, 2019

6 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "Starting weight due to other medications was 297lb. I'm on my 6th month and I'm down to 223lb and I'm still losing weight. I have found the key to this diet pill is make sure you follow a low calorie, low carb diet and make sure you are drinking half your body weight in water. For example if you weigh 200lb pounds then you need to drink 100oz of water a day. I have had my flaws and fell off the wagon some but I still watch my portion sizes. My advice would be download the my fitness app or keep a log journal of the foods you eat everyday. I want to reach my goal of 155-160 pounds cause I'm 31 and 5'6. Best luck to you all and don't give up."

   
10

Country girl (taken for 6 months to 1 year) January 4, 2019

21 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "I'd been on a weighy loss program for 5 months and although I had lost over twenty pounds (started at 182lbs.), I hit a plateau and couldn't lose the last five pounds. I'm a 42 yr. old woman, 5'6 and weigh 159, but need to be 155. Today is my second day taking the Phentermine 30mg. I was initially nervous and concerned that it would cause my heart to act up as I have low heart rhythm and am very sensitive to stimulants, but was pleasantly surprised to see my heart was fine. I'd done research and watched videos with Physicians prior to taking it and took the advice they'd given about taking the pill within the same hour of eating to curb rapid heart rate, so that is what I did. It felt funny at first with tingling in my legs and light headedness, but that quickly passed. I felt calm, happy and very relaxed all day. I didn't crave food and didn't feel deprived. I didn't notice a headache or dry mouth, but I did drink lots of water. I did have difficulty sleeping that night."

   
7.0

AZHeather December 31, 2018

5 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

For Weight Loss: "I was prescribed this medicine for being over weight. I’m 18, 5”5 and my starting weight was 180/185, depending on how much I ate that day. I had previously taken antidepressants which increased my appetite and made me gain over 40 pounds, so my doctor thought I could try this medicine. Just in the first few months I was shedding weight like crazy. I was also drinking water only, no carbs, and going to the gym at least 3 times a week and doing cardio. My weight got all the way down to 136lb. I am now at 142, and it fluctuates depending on my food intake and bowel movements. I did have some side effects with this medicine. Sometimes I would have heart palpitations, but it was only a few times. I also experienced dry mouth, and insomnia. But the worst side effect I had was constipation. I wouldn’t have a bowel movement for 2 whole weeks."

   
8.0

Allison December 28, 2018

7 users found this comment helpful.
Did you?   Yes   No   |   Report inappropriate

Hide