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161 Phentermine Consumer Reviews

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Rated with 2 stars
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Verified Reviewer
Original review: April 28, 2019

TL;DR- Make sure you have enough time and focus for a healthy balanced lifestyle and diet. Personally I don’t and it affected me horribly. I’ve been having my period every other month for 3-4 weeks at a time. It’s been very heavy and also emotionally draining. I felt incredibly shaky and like my mind was scattered, and it left me severely constipated. I just wish there were more answers about this either from doctors or online but it’s very minimal and not helpful for what happened to me. Hoping that as soon as I stop taking it that everything will go back to normal.

I started taking phentermine right after the start of the new year to kickstart losing weight at a 5’2 20 year old that let myself gain 50+ once I got into a serious relationship. At first every time I stepped on the scale I would be so happy because I’d felt like I had really done it but unfortunately my schedule and habits don’t allow the healthiest or recommended lifestyle. I WANT TO ADD BECAUSE IT IS VERY RELEVANT THAT I AM ON THE NEXPLANON IMPLANT!!!! Two months and I dropped 20 pounds because I was never awake for breakfast or hungry for lunch so I would eat dinner. And then be awake all night because I’d take it at ten in the morning. At work my heart would race and my mind would be all over the place and I figured it would settle as I got used to the medication. Instead I became shaky and confused.

After one month on the medication I began to get my period. I thought it was strange and looked up nexplanon side effects because I’ve had it for two years and haven’t had much of a period yet. It was the week after my phentermine doctors visit that I got it and 3 weeks it went on so I told my phentermine doc about it and he said with the girls who bring it up to him and are also on nexplanon usually say this happens to them as well. It was incredibly heavy so I just figured he’s right and it will go away on its own. Well it did go away but a month later it was back and just as long and as heavy as before. Meanwhile I’m still dizzy and nothing tastes quite right and I’m INCREDIBLY constipated. I personally was afraid of laxatives so that is my next option but I was down to going MAYBE 2x a week if I was lucky and eating enough. More often it would have an abnormal amount of mucus in it and recently just mucus.

Some of these things don’t line up and I started to get scared. I tried bringing it up to someone and they just said I’m pregnant and wouldn’t hear me out. I’m not pregnant and I’m suffering but here I am still taking phentermine because I’m scared of the withdrawal and I fear that I won’t keep up with my weight loss. Yes these things are my fault but I also think that when I bring these concerns to the doctor that they’d recommend taking me off of it. And of course no one should be looking for answers on the internet but that was my last option and even searching this thread I feel like I don’t really know if anyone is experiencing anything similar and unfortunately I only know my sister who is taking the medication as well but everything is smooth sailing for her. It’s just something I feel so alone in and no one seems to have helpful answers.

I have never done well with anti depressants and after these five months and my appointment on Thursday I will be taking myself off of it to see if I can go back to never having a period and going at least once a day. I think it’s more important to have a healthy balanced lifestyle and diet first before allowing yourself this aid. Because without it I think you’ll be miserable.

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27 people found this review helpful
Rated with 1 star
Verified Reviewer
Original review: March 31, 2019

One dose of 15 mg was the most horrible experience! I’ve taken diet pills in the past and none have done what this one did. The first thing that happened was muscle spasms in my neck and upper back followed by what felt like the worst sinus headache ever. It did not suppress my appetite at all but instead made me want to eat everything in sight! Later in the day I began experiencing extreme fatigue and frequent urination. Then diarrhea in the afternoon followed by uncoordinated movements and slurred speech. Irritability and depression and extreme appetite!

Parts of the day felt like “couch lock” that you get when smoking certain strains of **. You know you need to get up to drink, go to bathroom, etc. but can’t move unless you absolutely have to. This is only a good thing when you want to feel this way! I just came if HCG diet and was concerned about overeating. This drug is not the way to go! It could’ve been a bad reaction to absorption rate due to HCG, I don’t know. But no drug is worth this much despair and pain! This was first day first dose of Phentermine. Never again.

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26 people found this review helpful
Rated with 1 star
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Verified Reviewer
Original review: March 17, 2019

I’ve had several people I know take Phentermine with great success, and they all felt great. I discussed it with my doctor and she prescribed it, told me to take 1/2 a pill for the first week, then the full dose after that. Day one, I take the 1/2 pill and followed doctor's orders. I was eating my small frequent meals, drank a lot of water, I was determined to make it work. Within a few hours I noticed a lot of pressure in my eyes, an uncomfortable pressure in my neck, and a headache. I usually get headaches so I wasn’t terribly concerned at first, but as the day went on, it just got worse.

Not long after my husband got home he suggested I go lay down. The headache was so intense I was crying in pain, and vomiting. I should have gone to the ER, but I didn’t have a way there and felt too sick to drive myself. I think my blood pressure was dangerously high, I’m lucky I didn’t have a stroke or heart attack. I stopped after one day; only half a pill. I would have liked for it to work, but at this point I wish I had never taken it.

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47 people found this review helpful
Rated with 1 star
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Verified Reviewer
Original review: Jan. 4, 2019

I tried this drug for 4 weeks. I had no side effects whatsoever until the 4th week, my last week. I found I couldn't use the bathroom. It's like my bowels have stopped. My stomach digests the food but its like it just sits in my intestines. That was two months ago and now I take laxatives to go because I'm afraid I won't if I don't. I tried not to take the laxatives, but then it appears the problem hadn't changed. I know the side effects are constipation, but I'm not even constipated. I just feel the urge to go.

Can anyone share some insight please? I'm worried this will last forever and I desperately want to have more children with my husband. But how can I if I live on laxatives? Sure enough these laxatives will hurt me even more so in the long run. I'm praying to god this goes back to normal. I am hating this every day. If anyone here is thinking about trying this, DON'T! Please. I only started this because my mother-in-law has been off and on it for years and I thought it would be great for me too. I only took this product for 4 weeks! I am terrified or what my life will be like if I can't fix this. If I can't have another baby I'm worried my husband will leave me and I love him so much.

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73 people found this review helpful
Rated with 5 stars
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Verified Reviewer
Original review: Oct. 9, 2018

I started to use this medicine few days ago, and I literally forget to eat sometimes, I go to gym every other day. I look at this medicine as a reset button. No more snacking junk food or eating bad stuff (when you are on this medicine you really don't want to eat it). It usually takes 30 days to get rid of your habits and I believe this can provide you that. Of course this is not a magical pill and will help you get rid of all your unwanted weight. As I said before I believe this is a reset button. After that it is up to you to how to re-arrange your eating habits. One downside on this medicine is it definitely makes you thirsty, I drink around 4 liters of water now but hey water is good for you??? And if you are on this med and trying to lose weight do not drink soda instead of water. I am 35, 5'8" 204 pounds, 30 BMI, God bless all and good luck on your weight loss journey.

117 people found this review helpful
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Rated with 1 star
Verified Reviewer
Original review: July 30, 2018

I am 48 and have Hashimoto's thyroiditis. I lost about 30 pounds over the past few years on my own by cutting out all carbs, sugars, etc. and doing hardcore cardio workouts 5-7 days a week. The weight loss did, however, came to a halt but I was adamant about reaching my goal weight and still needed to lose about 20-25 pounds in order to get there. I went to a clinic and spoke to a doctor about wanting to lose these last unwanted pounds. She prescribed Phentermine. And within just a few days my life began to unravel.

Although I had zero appetite, my energy level was nonexistent. I felt completely withdrawn, I had terrible brain-fog, felt lethargic and completely unmotivated. I didn't want to talk to anyone; I would find myself staring into space like a zombie. I felt nauseated, light headed, dizzy, had headaches. It was the most miserable week of my life. I could barely work, could NOT sleep (even though I was exhausted, the pills kept me up at night, ALL night) and was fighting with my partner and crying about everything he did or didn't do!

Normally I am a very positive and happy person but during the week I was on Phentermine, I felt horrible... almost **. Nothing made me happy, I was convinced my partner didn't love me, that I was useless, that I had no reason to live. I turned into a total nutcase. Even though I lost 4 pounds within the first few days, by the time the week was over, I stopped taking the drug. I am feeling so much better in the few days since stopping this medication. I feel in control of my emotions again and my mood is once again bright and sunny. I would urge anyone who takes this medication to watch your emotions closely and make sure you don't experience the side effects that I did. Bottom line -- be careful. Although this medication curbs your appetite, it also concerns me.

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158 people found this review helpful
Rated with 5 stars
Verified Reviewer
Original review: May 5, 2018

I know many put this medication in a bad light. But what I see is mostly people who take Phen with little to no understanding of how it works and struggle dealing with the side effects. I am a 25 year old young, healthy female. Last year I had a nightmarish experience after getting pregnant from a misplaced IUD and eventually having a miscarriage which, at that time, I had absolutely no idea and thought it was my period, just heavier blood flow from the IUD.

Fast forward a few days from that event, lots of pain, massive fever, went to the doctor to get told I had an infection and that had I not gone sooner I’ve would of gone into septic shock. My relationship started to fall apart, I had a bad split with my then bf, mainly his mom did not like me and low key did things to cause trouble so I’d leave (they were Jewish I wasn’t. I got hewed). He kept my things hostage in his apartment in another City. I flew back home. Things were pretty nasty.

Anyways. I'm 5’5 and I weighed 120 lbs on freshmen year college. By the time I got pregnant I was hitting close to 160 lbs. the whole pregnancy thing and all the meds I took to control the infection ** up my metabolism big time. I was riding 4-6 horses a day plus working out religiously. I was trying to eat as healthy as possible and I could not drop the pounds at all. I wasn’t necessarily obese, I was just thick and my body fat just refusing to go.

I was exhausted and in disbelief by how hard it got to lose weight when my body had normally fluctuated a few pounds here and there. My jeans wouldn’t fit, I wasn’t happy with my look, I felt ugly, but most importantly my current body shape was a reminder of all that fiasco with my ex and I just couldn’t really bare to be constantly reminded and frustrated. To the point I did consider lipo just to attack the stubborn areas, mostly inner thoughts and for the first time in my life, belly area. That’s how desperate I was after 6 months of trying my very best to eat clean, do weights, cardio etc.

Finally a friend introduced me to Phentermine. I have ADHD and used to take ** for it. I lost ridiculous amounts of weight on it and suffered bad anxiety to the point I was scratching my arm raw and a part of my head bald. It got me through college but I quit as soon as I finished finals to never take it again. So Phentermine is somewhat on the same family group and I already had an idea of how I reacted to **. I did extensive research before I started it. I had no medical provider supervise any of this. As expected I got hot flashes, dry mouth, had muscle cramps, my entire back ached, I had problems going to the bathroom, my heartbeat was accelerated and I could not sleep.

I made sure that during the time I took this med I had sleeping aids such as melatonin to counteract that effect, I also had vitamins and supplements that I started taking before and after Phen. I was not hungry at all, I could pass up a slice of pizza and go for the healthier meal option. I had control over my cravings and that was worth every single ugly side effect I had to go through. Everyone’s tolerance differs, some people are more sensitive. Side effects for me on a scale from 1-10 were probably a 6-7, and I have a high pain/tolerance threshold. I just felt sick the first two weeks and I even skipped taking Phen a few days to give my body a break and would lower the dose to half. If the cravings got unbearable I’d take a half a pill. I made sure that during those first weeks I did not have a thing major going on, so I would not overwhelm my body and myself with everything.

You need to listen to your body and be aware of how you feel. Most of the side effects faded after week 2 and I felt a lot better. But others remained, I was very productive and efficient, also extremely sad, but I already knew that these meds do cause these problems. So I did not let it take over. I’d just cry the feeling out till it got better, I knew how to counteract the sadness by hanging out with friends or going out on a walk with my dogs. I was pretty good at catching it before it snowballed into bad sadness. Then those side effects started to fade as well. I could eat while on Phen, the difference is that I had complete power over how much and what I ate. It felt so great.

Phentermine gets five stars because it changed my life. Sounds dramatic. I exactly don’t know how much weight I lost because I never kept track. I did lose inches and fat %. For the first time in over a year I fit into my old clothes and I can actually rock a bathing suit better than I ever had before. My metabolism is finally back to how it was. I am able to get away with a cheat meal and It won’t go directly to my waist, whereas before, I’d just get all bloated and felt big after having a slice of pizza for example. It’s refreshing and it’s motivated me to keep going.

It’s also helped with my ADHD. Wish this med could be taken long term. It’s effect on my hunger lessened at around 2 months, but it still helped with my ADHD. It’s like ** but without the crippling depression and harrowing anxiety attacks. I’d take one in the morning and by night my sleep was back and I was so on top of everything.

I am so happy I ran into Phen because I was really close to getting lipo. That’s how desperate I was. I am so happy by how my body changed. This pill works, but at a cost. I feel the side effects were worth every single bit for the results I got and money I saved. Please be very informed and mindful of your body before you take Phen. Go one step at a time and take recommended dose to get a mild feel of where you are at and gradually Increase it. Don’t go from 0 to 30+mg right off the bat.

Understand how your body and metabolism work and do not just starve yourself. Avoid muscle mass loss by trying to eat meals high in protein and low in fat/carbs, as well as having the right supplements at hand. Be smart about it. You will lose the fat as long as you remain under your caloric deficit. If you starve yourself you will lose muscle mass before your fat. Hope this helps.

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200 people found this review helpful
Rated with 3 stars
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Verified Reviewer
Original review: April 4, 2018

I have taken this drug off and on for two years. I lost about 30 lbs a year ago. Once I stopped it, the weight came back. Recently I began taking it again. This time I had quite a scare at work one day, I almost had a stroke. My B.P. skyrocketed. It scared me, so now I take only half a pill along with a blood pressure med. So far, so good, but if it goes up again, I will stop it altogether. It is something that really works, but isn't the best med as far as safety. Be very careful.

196 people found this review helpful
Rated with 5 stars
Verified Reviewer
Original review: March 18, 2018

I see a lot of negative reviews about Phentermine, so I felt compelled to share my success story with Phentermine. I'm 49 years old and I weighed 189 pounds at 5'8" and felt sluggish and had VERY high liver tests including 499 triglycerides. I was afraid to take Phentermine due to some of the reviews I read online, but in 2 months I'm down to 169 and have NEVER looked or felt better. I have energy and phentermine has helped me to not be EXTREMELY hungry from the time I wake up till the time I go to bed. I haven't had "racing" heart or any "headaches" either. I see my Doctor every 2 weeks in order to be monitored VERY closely, but I would definitely recommend Phentermine to anyone who needs to lose 30 pound like me.

266 people found this review helpful
Rated with 1 star
Verified Reviewer
Original review: March 14, 2018

Ever since I took this pill I've been having neurological problems I've never had before. I've experience, tingling all over my body, headaches, dizziness, and fatigue. When I first started taking this medication it was last year 3/16 and I did lost 20 pounds. I stop taking the pills and restart in 11/16 but not sure why I experience the above symptoms. So I stopped taking them 1/17 and Glory to God. Symptoms stopped.

145 people found this review helpful
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