Skip to main content

User Reviews for Phentermine / topiramate

Also known as: Qsymia

Phentermine / topiramate has an average rating of 7.9 out of 10 from a total of 663 ratings on Drugs.com. 73% of reviewers reported a positive effect, while 13% reported a negative effect.

Condition Avg. Rating Reviews Compare
Weight Loss  
7.7
479 reviews 42 medications
Obesity  
8.4
184 reviews 66 medications
Summary of Phentermine / topiramate reviews 7.9 663 reviews

Reviews may be edited to correct grammar/spelling, or to remove inappropriate language and content. Reviews that appear to be created by parties with a vested interest are not published.

Reviews for Phentermine / topiramate

SS · Taken for 1 to 2 years February 21, 2020

Qsymia (phentermine / topiramate) for Weight Loss: “I have been taking Qsymia for a year and 4 months to help me lose weight. I lost 70 lbs . I feel great. I have not lost anymore in a while but I’m afraid to stop taking it . I don’t want to gain it back. I exercise and changed my diet. My metabolic dr says it’s safe to continue. I’m in the lowest dose. ( 7.5) . This drug changed my life.”

10 / 10
Was this helpful?YesNo
CrazyCajun · Taken for 1 to 6 months December 8, 2020

Qsymia (phentermine / topiramate) for Weight Loss: “I started Qysmia in Late September of 2020, so I have been on it for almost 100 days. Early on I was loosing a whole lot of weight I started off with a 1700 calorie diet, I didn't start with exercising due to my weight (325 was my starting weight). I was down to about 294 by the begining of October (so Late August to Beginning of October I lost 31 lbs) and I began elliptical training slowly for about 15 min, then 20 min all the way to 45 minutes by November, weight loss tapers off down from crazy amounts to respectable amounts I'm now down to 2-3 lbs a week average and I'm currently down to 264. I have had a great experience so far, I had to give up soda (topimax in Qysmia makes soda taste terrible, not so much a bad thing) I pretty much drink water and bubbly here and there. Side effects: I have had dry mouth and constipation but I can deal with that. I recommend it, it has been a godsend and I feel great I have gotten my energy back and I'm eating right what more can you ask for.”

9 / 10
Was this helpful?YesNo
sugardoll4 · Taken for less than 1 month January 13, 2020

Qsymia (phentermine / topiramate) for Weight Loss: “I've been taking Qsymia for 3 weeks now. I started with the 2 week starter dose and bumped up to the 7.5/46 mg dose. I have not had any side effects except for dry mouth/thirst. So far, I am loving this medication. I've lost 9lbs in the 3 weeks, and I have found that I am able to stop eating and know when I am feeling full. I am able to not eat between meals and don't have any cravings for sweets. Plus as a bonus, my insurance covers the medication which is awesome!!”

10 / 10
Was this helpful?YesNo
Hannah · Taken for 1 to 6 months May 3, 2021

Qsymia (phentermine / topiramate) for Weight Loss: “I started taking Qsymia at the lowest dose at the beginning of 2020. I lost 50lbs between February and July. In July I had a tummy tuck to remove the excess skin from my abdomen. I had to stop taking Qsymia before my surgery per my surgeon, and had gained all of the weight back. I began taking the lowest dose of Qsymia again last month and I am down 30 lbs in 30 days. This is more weight off than the last time I took this drug, but now I am exercising much more often. My starting weight was 250, and I am now 220. My advise- taper off SLOWLY. Don't quit cold turkey like I did. I am currently eating 1200-1500 calories a day focusing mainly on protein but not cutting out foods I enjoy. Drink TONS and tons of water. I drink at least 2 L a day. This drug will make you lethargic and can lead to kidney stones if you do not hydrate properly, and most of your fat is excreted through urine- so drink water!”

10 / 10
Was this helpful?YesNo
MsReeca · Taken for less than 1 month August 19, 2020

Qsymia (phentermine / topiramate) for Weight Loss: “I was skeptical about the medication Qsymia, just because I don't like taking medication and phentermine gave me bad headaches in the past; I read the reviews, I researched the medication and prayed before I started; I am a 44yr old female 5' 5, 250lbs, and hippy...my doctor started me on 7.5/46, been taking for a week, mild side effects like decrease in energy on some days, tingling of the hands and feet, pop taste bad but I'm a tea drinker... I've lost 7lbs, with no exercise...thank GOD...my appetite is gone...my portions are smaller...I'm going to add exercise a couple days a week to regain my energy and more healthy eating...but this medicine is a hit, so far...give it a try! Oh it does cost out of pocket, around $110 with coupon.”

Was this helpful?YesNo
Girlonamisson · Taken for less than 1 month December 6, 2014

Qsymia (phentermine / topiramate) for Weight Loss: “I started on the lower dose on 11/4/14. My starting weight was 301. 2 weeks later I went up a dose. On 12/4/14 my weight was 261 and I am still on the 7.5mg dosage. My doctor was so shocked when she saw me. She said the average person loses 1-2lbs a week and I've managed to lose about 10lbs a week. I also told her I cut out carbs and sugars. I no longer look at food as if I have to have it. I now look at food as a necessary nutrient my body needs to live. It is the best decision I've ever made.”

10 / 10
Was this helpful?YesNo
Lisa · Taken for 1 to 6 months October 30, 2019

Qsymia (phentermine / topiramate) for Weight Loss: “At the end of April 2018 I started to take Qsymia. Within two months by the end of June 2018 I have lost more than 20 pounds. This is the best medication to lose weight I can recommend. It works really well for me. The only side effect was feeling a little bit depressed at the end of June. I went from 170 to 145 pounds and I was able to use my two pieces bathing-suit in Florida vacation :)”

10 / 10
Was this helpful?YesNo
eeanderson May 26, 2021

Qsymia (phentermine / topiramate) for Weight Loss: “I 59 yrs old, 5'6" tall 326 pounds On April 5, 2021. I received the basic dosage and initiated my 1500 calorie intake as well as 7000 daily steps. As of May 19, 2021 my weight was 304. I down 22 pounds. I'm extremely happy with the results. Since chemotherapy in 2015, I have gained over 130 pounds. The Mayo Clinic recognized my health issues & quickly recommended Qsymia. My side effects are similar to other posters, constipation, numbness in hands, mild insomnia, and dry mouth. As for what I am doing to assist in my weight loss. I stopped drinking all carbonated drinks and no more sugar. I am now adding and additional daily 30 minutes stationary recumbent bike exercise to the 7000 steps. I drink two 16 oz bottles of water every morning with my pill. I drink a minimum of 5 (16oz) bottles a day. I use my watch and phone to track my exercise and I document all meals on an app called My Fitness Pal. I take screenshots of all my exercise and food information and send it to my nutritionist in a weekly email.”

10 / 10
Was this helpful?YesNo
Anon · Taken for 1 to 6 months January 17, 2020

Qsymia (phentermine / topiramate) for Weight Loss: “So I have been taking it for a couple months now and have lost a total of 50 pounds. In the beginning the only side effects I have encountered had been dry mouth, nausea and constipation. However now on the third month both of my legs have gotten numb and stayed numb the last couple day. I have went to several doctors and they are not sure what it is from. I was wondering if anyone else encountered this problem?”

5 / 10
Was this helpful?YesNo
Yard bug September 21, 2020

Qsymia (phentermine / topiramate) for Weight Loss: “I started Qysmia 3.75 on 8-25-20 @ 209lbs. I’m a 40 yr female 5’0 my heaviest was 220lbs, lost 11lbs on my own and kept it off but wanted too loose more because I have diabetes in my family. I am also bipolar and a lot of the meds I take for that make me gain weight. In just 4 short weeks I’ve lost 9.3lbs & I have so much energy & feel amazing. I go to the doctor today to see about him upping my dosage to the 7.5 . I really didn’t exercise while I was on the low starter dose, it just made me not hungry, I did have slight stomach cramps. I feel better about about myself & I’m also teaching myself to eat smaller portions and eat better food choices. When I do eat food, I tend to fill up faster. At the rate I’m loosing I hope to be at my goal weight by March, I might even go for 110lbs bc I’m so short.”

10 / 10
Was this helpful?YesNo
Danny in Norwalk · Taken for less than 1 month November 4, 2019

Qsymia (phentermine / topiramate) for Weight Loss: “I was on Qsymia two years ago and successfully lost 55lbs. I gained it all back again and I recently went back on it. Here's my story. I'm a 43yo male, initial weight is 203lbs at 5'8" tall. My doctor, because I tolerated the drug well, put me on 11.25mg immediately and within 2 weeks, I lost 14lbs. Following 2 weeks, I've just started 15mg and I've tolerated that well and lost 4 more pounds in 2 days, so things are looking up. From experience, my past side effects were: dry mouth, tingling in my hands and feet and that's about it. Every month, my doctor will ask for a weigh in, in addition to my blood pressure measurement. As long as those two elements are good, he will continue prescribing. My insurance thankfully covers this (be sure your doctor marks down for insurance purposes that you are OBESE so it's covered!) so I pay only $20.00 out of pocket. My goal is to get back to 150lbs, which I don't believe I'll have a problem doing. It's just keeping it off!”

10 / 10
Was this helpful?YesNo
Alano · Taken for 1 to 2 years April 8, 2019

Qsymia (phentermine / topiramate) for Weight Loss: “I have been taking Qsymia for 13 months now. I am 5'7", and was 50 when I started. I weighed 304 pounds. I have lost 105 pounds so far. I cannot praise it enough. I intend to lose another 40lb or so. It has been a life saver for me. My energy is through the roof, and the benefits to my self confidence are immeasurable. My cholesterol went from 225lb down to 185lb. So, as for side effects, I do experience bouts of constipation. I try to keep myself fully hydrated which definitely helps, and occasionally use fiber supplements as needed. In the beginning there was some dry mouth, but that passed. Also, I had some occasional tingling in my fingers early on, but that has subsided as well. I know it's not for everyone, but for me, it has worked wonders. The cost has been an issue, but I think of how much I used to spend on snack foods, takeout and the like and it doesn't even compare. I am still way ahead of the game.”

10 / 10
Was this helpful?YesNo
Texas Grandma · Taken for 1 to 6 months August 16, 2017

Qsymia (phentermine / topiramate) for Weight Loss: “Let me start by saying I am 59 years old. Until now, I have not had a problem losing when I needed to. I am not big on diet pills so I was a little hesitant at first. The 2 week free trial helped me decide to give it a try. The first 2 weeks I lost 6 pounds. I lost a total of 45 pounds on this medicine!! and kept it off for a year!! I have recommended it and so far have had several friends go on it an loose weight with equal success. You have to cut back on food intake and exercise. I highly recommend it!!”

10 / 10
Was this helpful?YesNo
Chubbyafterbabyno2 · Taken for 1 to 6 months May 7, 2020

For Weight Loss: “I started this medication (combo of phentermine and Topamax) on 4/1/2020 at 202 lbs, 5'5. As of today, 5/7/2020, I am down to 182.4. I don't feel hungry. The main side effect is dry mouth. I drink a gallon of water a day to offset the dryness and I believe it's helping the weight loss too. Wonderful experience!”

10 / 10
Was this helpful?YesNo
Tish · Taken for less than 1 month October 23, 2019

Qsymia (phentermine / topiramate) for Weight Loss: “I’ve only been on this medication for 2 weeks but have already lost 10 lb on it . With saying that after a hysterectomy and quitting smoking it has been almost impossible to lose anything so grateful for what I have lost, as far as side effects I’ve had none I actually have way more energy and a lot of people talked about being foggy headed but I think I focus better. Definitely going to keep using this”

10 / 10
Was this helpful?YesNo
jfk April 18, 2019

Qsymia (phentermine / topiramate) for Weight Loss: “I have suffered , like my entire family, with weight problems my entire life. Unfortunately, some injuries to my lower body joints while serving as a Paratrooper made exercise difficult and painful. Once I had my hip replaced and knees fixed I worked with my Doc and he suggested Qsymia. It worked immediately. I still had to struggle a bit and the side effects were annoying, but not debilitating. So far I am down almost 70 lbs in a year and still going. Of course the Insurance company won't pay, so be prepared to do lots of shopping around. That being said, with the half person I have lost, I am back to hiking with my family in NY (two peaks in one day) from 48 -50 pants to 38-40 pants and a blood pressure that went from 150/90 to 106/70. Look, not everyone will do as well, some will do better, but this pill really worked and a bit of dry mouth, constipation and sleeplessness are a lot better than gastric bypass!”

10 / 10
Was this helpful?YesNo
Nicole1970 · Taken for 1 to 6 months November 27, 2013

Qsymia (phentermine / topiramate) for Obesity: “I had seen a story about Qsymia on the news right before seeing my doctor for the results of my physical. I was at the highest weight I had ever been 233 lbs, 43 years old and a mostly inactive lifestyle. I did some research on side effects, printed out all the information I could find and took it with me to my appointment. My doctor was hesitant because she never heard of Qsymia, but agreed to a trial 6 month run that was in July. Today I had my fifth doctor's appointment, 40 pounds lost, current weight 193, she has approved me to be on Qsymia until the goal weight is reached since she has done research and found that it okay to be on it for the long term. No dieting! Barely exercising. Appetite is decreased - HUGE SUCCESS.”

10 / 10
Was this helpful?YesNo
BeckyIrons · Taken for 1 to 6 months January 26, 2015

Qsymia (phentermine / topiramate) for Weight Loss: “I have been using this medication for 1 month and have lost 15 lbs. I have been very fortunate and the only side effect I have experienced is a bit of a dry mouth. That has not been bothersome it has only encouraged me to drink more water. I have continued exercising 4-5 days/week. What has been a real blessing is I have not been obsessed with food and I cannot recall a time when food was a main focus of my thoughts.”

9 / 10
Was this helpful?YesNo
Ptrsha · Taken for 1 to 6 months July 5, 2019

Qsymia (phentermine / topiramate) for Obesity: “61 year old female, I started Qsymia, the 3.75 prescription the first week of April. Did that for two weeks then moved on to the 7.5 dosage. I started at 388 lbs and now weigh 332lb, lost 56 lbs in three months. I like it, there are side effects. Dry mouth and stuffy nose are the worst for me. I do also get occasional headaches. But it has totally taken away my appetite and my emotional eating as well as letting me control my sweet teeth. My doctor is letting me stay on it for another four months (and hopefully longer). I have been morbidly obese all my life. Had a gastric bypass 18 years ago and put most of the weight back on. This is the first time I have felt a glimmer of hope in feeling control over my eating habits. I wish everyone success in their endeavors and hope you give it a try.”

10 / 10
Was this helpful?YesNo
YaSiWei September 20, 2014

Qsymia (phentermine / topiramate) for Weight Loss: “I'm 5'7 and 6 weeks ago I weighed 210 lbs. I started at the low dose for two weeks and lost 8lbs, and at the middle dose I lost 17lbs more. I've had minimal side-effects: toe and finger numbness that lasts for a few minutes and some dry mouth. Certainly nothing that I would consider stopping for. I love this pill. I have no interest in food and am so rarely hungry. It is pricey- please go to their website and get the first two weeks free and $100 off every month after that. It is worth it, I think I'm saving that in food costs.”

9 / 10
Was this helpful?YesNo
squigs · Taken for 1 to 6 months December 31, 2019

Qsymia (phentermine / topiramate) for Weight Loss: “I read so many reviews that almost scared me away from taking it but really have not had any issues. It is true that carbonated drinks taste different now and I get a tiny amount of tingling in my fingers every now and then. weight loss has been consistent at a couple of lbs a week. Ate terrible during holidays and put 2 lbs back on in a month with eating badly and no gym but that would have been way more without the drug so I'm okay with it. I was eating what I want but just small amounts and feeling full. Not deprived at all. Just listen to yourself when you eat.”

9 / 10
Was this helpful?YesNo
Jackie · Taken for less than 1 month November 20, 2019

Qsymia (phentermine / topiramate) for Obesity: “I am 48 year old female started on 7.5 mg Qsymia. My starting weight was 238lb and six days later my weight was 221.lb The first couple of days I had very low energy and felt a little groggy but I had to learn to force myself to eat because I don’t have an appetite. I do have slight blurred vision at times. I feel like it’s worth it for the weight loss. I have dry mouth as well. I have done absolutely no exercise at all but plan to start.”

10 / 10
Was this helpful?YesNo
tkms · Taken for 6 months to 1 year June 9, 2014

Qsymia (phentermine / topiramate) for Weight Loss: “I started taking Qsymia in July 2013. I was 294 lbs. I have lost over 100 lbs with the help of Qsymia and am loving life. This is the only thing that has worked for me and I've tried everything from Weight Watchers to Adipex and back around. I love Qsymia. It is a life saver.”

10 / 10
Was this helpful?YesNo
Elfie · Taken for less than 1 month May 8, 2021

Qsymia (phentermine / topiramate) for Obesity: “I am a 58 yr old female. 173 lbs ,4ft 8. Today is my first day on the med. I had a little numbness in my hands. But subside in no time. I'm not hungry. Tried to eat a half of a sandwich and took 2 bites and wasn't hungry. We celebrate mother's day tonight at my daughters with her family. Will order pizza from our favorite place, will see what happens. I'm drinking splash flavored water. Good luck every one. Go to dr on 5/28/21. Will let you know what happens.”

Was this helpful?YesNo
Nana1960 · Taken for 6 months to 1 year April 17, 2015

Qsymia (phentermine / topiramate) for Weight Loss: “At 220 pounds and 5' 0" I was out of control with my eating. My BMI was 43. I had to do something. I tried every over the counter diet pill there was. Finally my Dr prescribed Qsymia. I have been on it since August 2014 and have lost 89 pounds. My goal is to lose a total of 110 pounds. Dry mouth and constipation are the worst side effects, but I can deal with those. I have gone from a size 22 pants to a size 12....bust size has gone from 40DD to 36C. I now know how to eat and what not to eat to keep the weight off. I will continue on Qsymia until August. 21 more pounds to go to reach my goal of 110!”

10 / 10
Was this helpful?YesNo

This information is not intended to endorse any particular medication. While these reviews may be helpful, they are not a substitute for the expertise, knowledge and judgement of healthcare professionals.

More about phentermine / topiramate

Consumer resources

Other brands
Qsymia

Professional resources

Related treatment guides