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User Reviews for Fastin

Fastin has an average rating of 7.1 out of 10 from a total of 80 ratings on Drugs.com. 69% of reviewers reported a positive effect, while 25% reported a negative effect.

Condition Avg. Rating Reviews Compare
Weight Loss  
7.0
77 reviews 42 medications
Obesity  
10.0
3 reviews 66 medications
Summary of Fastin reviews 7.1 80 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 Fastin

bigpita June 26, 2014

For Weight Loss: “I started Fastin 30mg from my doctor on May 19 2014. You need to change your lifestyle not just pop a pill and be done with it. Because if you don't change, the weight will return. I started at 285lbs in one month I lost 25lbs and feel great. I changed myself with habit changes and exercise. I told myself that when this weight is gone it's staying gone, so I change my lifestyle and you can do the same.”

8 / 10
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EHEHEHEH June 6, 2017

For Weight Loss: “This is my 3rd time using these pills. The first time was in 2012, I lost roughly 35 lbs. I started again about 2 months ago. I kept the weight off, for about 4 years then got too comfortable and gained weight so here I am. Along with everyone else, when I first took an entire pill I too thought I was going to die. LOL funny but not funny. I started breaking the pill in half & I had no more issues. I DO NOT recommend taking these pills on an empty stomach. Eat first, take with WATER no caffeinated beverages or juice. Drink at least 16 ounces of water with it and you more than likely will not have anymore side effects. I feel completely normal when taking the pill as mentioned above. Hope this helps!”

10 / 10
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pitbull_mommy · Taken for 2 to 5 years July 7, 2015

For Weight Loss: “I started taking this pill when I was 218lbs and I now weight 135 lbs! I had thyroid issues too that originally caused the weight. But once managed I still had a hard time getting the weight off. This pill literally changed my life! Yes it does speed up your heart, my dr did an ekg before hand to make sure it was safe to take. But the results are beyond worth it. And if you take it with water or juice and a banana, you'll be good to go until dinner time! It took roughly 6 months tops to lose the weight, and I've maintained the weight loss for about 3 years now. I still fluctuate a little due to my thyroid. But I just start back on it if I need to lose again.”

10 / 10
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happythighs · Taken for 1 to 6 months May 13, 2015

For Weight Loss: “Fastin is an excellent dietary supplement for me. In the morning, right as I wake up, I take the little guy. The pill tastes like what I would imagine what baking soda would, but oh well, I am not sucking on it. It takes about 20-30 to give the first kick. That kick is the rush that says "I need to get moving or I need to get to the gym." The first time I took the pill I did get a little jittery and nauseous but once I started working out and drank water I started to feel fine. About an hour in I hit phase 2. Phase 2 is the spunk and mood booster. I feel awesome and amazing like I know what I am working for. Again, first day I felt a little dizzy and euphoric. Then there is phase 3 the come down. Drink water and eat a solid. I lost 100lbs.”

8 / 10
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Crazy life of 5 children · Taken for 6 months to 1 year January 8, 2020

For Weight Loss: “I’ve been taking Fastin for about a year. And took it for a few months the year before. I love this medication. It helps me not be so tired. I take it as soon as I wake up and I’m good for the rest of the day. When first taking it make sure you eat a little something otherwise it will make you feel sick. It does make your heart rate go up. I don’t mind it because I know you have to get your heart pumping to lose weight. Went from a large 16-17 to a 11-12. 205lbs to 160lbs in past year and I’m only 5ft 2in. (I have large hips). It helps me have energy that I haven’t had since I was a teenager. And I only take one tablet in the morning. This medication is a blessing to me!”

8 / 10
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Elena005 · Taken for 1 to 6 months November 24, 2013

For Weight Loss: “I have been working out for the past year and a half. I've taken many kinds of diet pills and let me tell you this is by far the BEST thing. I've lost 35lbs and I feel wonderful. I do feel a little jittery but I can handle that. It's great and I hope it never goes away. Love it!”

10 / 10
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Serina121 February 27, 2014

For Weight Loss: “I just started using Fastin and I like it better than other diet pills I've tried such as Hydroxycut because it doesn't make me feel sick/ nauseous. BUT it definitely makes my heart rate skyrocket, so for the first couple days I would only take half a pill at a time. A full pill makes my hands tremble and I can hear my pulse in my brain.”

7 / 10
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Frequently asked questions

Margo v. April 1, 2016

For Weight Loss: “So I was taking phentermine for a month and lost 15 pounds. I stopped taking it because it cost too much every two weeks to go to doctor and get medication. I googled pills like phentermine and this one came up. The pills look the same except phentermine is smaller. I took half a pill of fastin instead of the whole thing and it feels stronger than a whole pill of phentermine. So if you're new to this pill I would do only one pill a day and split it in two. It works as an appetite suppressant and and energy booster. I definitely would recommend this. But please take only one pilll a day instead of two and split it in half.”

8 / 10
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mzbcoop · Taken for less than 1 month October 24, 2013

For Weight Loss: “I have been taking fastin for a little over two weeks. I started at 150 and im currently 140. Fastin causes me not to be hungry as much and gives me energy. I do feel a little jittery sometimes and have a funny taste in my mouth. Overall im pleased with my weight loss and will continue using fastin .”

10 / 10
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shelby2012 August 30, 2013

For Weight Loss: “I started taking Fastin a few days ago after I read so many good reviews...I must say that I did take the advice of so many others and started with half of the pill. It seemed to put me in the best mood and my energy level went through the roof. Not to mention..I wasn't hungry at all. Yes it did make me feel a bit jittery so I drank a lot of water and had to pee quite often. Don't drink anything with caffiene in it while taking this because it makes you even more jittery, plus if you work in the heat be careful because I felt like I was having hot flashes but wow...it is definitely worth it. Lost a couple of lbs already. Well worth it for me.”

10 / 10
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JJMS October 14, 2014

For Weight Loss: “I am borderline average/overweight for a 5'3 woman just wanted to lose about ten pounds. Extremely effective but as the other reviews state two for me was way too much! Uncontrollable shaking but the heart pounding was nothing less than frightening.”

8 / 10
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Bestwriting December 30, 2015

For Weight Loss: “Fastin, there's nothing like it. Amazing. You lose a pound a day if you eat breakfast then take one. Then lunch and another one. And drink a gallon of water a day. There's something with drinking that much water that allows you to drop a pound a day. You are going to pee every hour until the fifth day when your body get use to a gallon a day water...try it. When her heart races, take slow gentle breaths until you feel your heart slows.”

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reeda44 · Taken for less than 1 month January 23, 2015

For Weight Loss: “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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Nurse Misty November 8, 2016

For Weight Loss: “I am a 32 year old nurse and mom of 5. Before I started taking fastin, I was 269 pounds. I'm only 5foot 4 inches so needless to say I was huge. I was in size 24 jeans. I began taking these as a last ditch effort to help me lose weight and feel better about myself. This week I weighed in at 187. (I recommend only weighing once a week on the same day before you eat or drink anything). I am now in a small size 16, which are big on me. I will agree that it makes your heart feel like it is going to pound out of your chest, but that is how I felt when I exercised. I would be huffing and puffing and barely able to stand. So I feel that in order toactually burn off the fat, you have to pump the blood harder and faster. Works for the obese.”

10 / 10
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Mattzilla · Taken for 2 to 5 years October 9, 2019

For Weight Loss: “I’ve been taking Fastin on and off for about 5 years. I always take half a pill in the morning and the second half in the afternoon. It definitely kills appetite cravings and I have no desire for late night snacking. Drink a lot of water. It can affect your mood. There have been days when I feel just so angry just by someone looking at me funny. It increases heart rate and gives a jittery feeling but those side effects subside after a couple of weeks. It definitely works. I’ve lost 15 pounds in a month. Eat right and exercise and take this with precaution. I don’t recommend 1st time users taking a whole pill. You will feel like you are having an anxiety attack.”

8 / 10
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Chevys mommy · Taken for less than 1 month October 24, 2014

For Weight Loss: “I took this and it's the best thing I have ever tried. The first couple of days I went by the directions then I doubled the dose. And I lost 20 pounds in 2 weeks. It did make me feel very jittery and my heart rate was going 90 to nothing but I was determined to lose weight.! And a little information DO NOT I repeat ( DO NOT ) take Fastin before you get in a tanning bed. Tan first then take it. It made me very very strange in a bad way. I'm no doctor but when I increased my dose I had the shaking and the increased heart rate. But It never harmed me.”

10 / 10
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StrawberryParham March 27, 2016

For Weight Loss: “Today is March 26, 2016. Today was my first day taking fastin, I was scared out of my wits when I first tried one this morning before breakfast, I waited for all the bad adverse effects that I had been hearing about, but nothing bad happened even after my second afternoon dose. It made me kind of sleepy for the first hour or so, then my energy kicked into overdrive! No side effects what-so-ever, unless not eating is a side effect. I can't wait until in the morning for day number two! I'll keep you guys posted...keep in mind I kept clear of all caffeine, because these things are loaded with caffeine as is. I didn't get a chance to weigh in yet, so I'll update you on my weight also.”

10 / 10
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Shasi September 11, 2014

For Weight Loss: “It really works, you must eat before Fastin, then go to the gym, if you feel your heart hoes quick. Just take half pill and everything will be right. I'm 35 year old and with gym and my half pill of Fastin I feel perfect in my weight of my 15 year's past.”

10 / 10
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Florida girl67868 June 26, 2013

For Obesity: “I've been over weight all my life. I started recently getting really bad back pain and chest pains, I went on a scale and 287lbs! I was emotional, devastated and embarrassed! I've tried everything but I don't give nothing enough time. I don't have any patience. Tried Jenny Craig regular diets, diet pills, I had a personal trainer..nothing never worked. So started taking Fastin last Friday I'm not starving myself I'm eating fruits veggies, lots of water and so far 6 days later I've already dropped 8 lbs! I'm so happy I still have a very long way to go but I do recommend Fastin. ”

10 / 10
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yellow2014 January 22, 2014

For Weight Loss: “I took a pill this morning with some tea, and while I was eating breakfast I noticed my heart rate sky rocket, I don't know if this happened because I took fastin on an empty stomach or what, but this is a little scary! It literally feels like my heart is going to jump out of my chest! At first I didn't think I could be reacting to this drug so quick but apparently it's a very quick release type of pill. I can say that I'm not hungry and didn't finish my breakfast but at what cost?! Maybe I should try taking a quarter of the tablet, but I think I'm a little to scared and will probably throw the bottle away.. what a waste of $40 oh well better 40 bucks lost than a heart attack. Also I bought these over the counter at a Rite Aid.”

1 / 10
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Becca21 · Taken for less than 1 month August 1, 2019

For Weight Loss: “Fastin is really a great appetite suppressant! I have taken it for a few days. Yes it does make you jittery and your heart rate is increased but for me it wasn’t overwhelming. Unfortunately the only reason I couldn’t give it a 10 is because I do feel nauseous throughout the day which makes me not want to eat any food and drink tons of water !”

9 / 10
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Michelle Elizabeth September 8, 2015

For Weight Loss: “I tried Fastin for the first time today which I purchased over the counter. With in 20 minutes I experienced a slight euphoric feeling. After 30 minutes, however, my heart started racing, my body and hands began shaking and I felt as though I was going to pass out when standing. I had to sit down until I felt in control. After 45-50 minutes the shakiness and racing heart improved as well as the dizziness when standing but didn't disappear completely for over an hour. My mood still remained lifted. I may just be sensitive to the initial dosage so recommend that anyone sensitive to stimulant medications begin with a half dosage to minimize the initial negative effects until your body gets used to the drug.”

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Ongoing · Taken for less than 1 month July 25, 2019

For Weight Loss: “Fastin is a good appetite suppressant. When first taking it there are side effects of heart beat increases and jitteriness. That goes away after a few days. Fastin seems different than other diet pills in that I don't seem to eat the missed calories at night when the meds wear off. Definitely have to move/get active and drink plenty of no calorie drinks to lose the weight. I'm 49 and have used Fastin on and off over the last 20 years. I've had period of 60 lbs lost, then I stop paying attention and gain some/all back, especially now at that time in my life when all women have a hard time losing weight. I'm back on the down slide. I don't weigh myself but rather am enjoying the change in how my clothes feel.”

8 / 10
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Zaynab April 23, 2008

For Weight Loss: “When I started taking this medicine in December along with Metformin and Simvastin I lost 66 lbs. I started at 306lbs and now I weigh 240lbs. I am unsure if the drug is having any effect on me any longer - I will know when I see my doctor again. Perhaps I am just at a wall for the time being. Anyhow I think it works great.”

10 / 10
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Cristanka1985 June 4, 2008

For Weight Loss: “Phentermine has worked very well for me and my own personal situation. I was formerly anorexic/bulimic with a habit of severe calorie restriction, phentermine has worked amazingly. My metabolism went into hibernation after 5 yrs of damage & I gained 180lbs post rehab. By taking phentermine daily, I have the metabolism of a nomal 22 year old girl. I lost 30lbs/90 days initially. Now I'm losing 30lbs/month. Occasional moments of feeling weird/adrenaline rush is worth it.”

9 / 10
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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.