Fastin and Increased Heart Rate: What Users Say

• Ser...
• February 27, 2014

For Weight Loss (Obesity/Overweight) "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 or nauseous. However, it definitely makes my heart rate skyrocket, so for the first couple of 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."

• Cra...
• Taken for 6 months to 1 year
• January 8, 2020

For Weight Loss (Obesity/Overweight) "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 an 11-12. 205 lbs to 160 lbs in the past year, and I’m only 5 ft 2 in. (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!"

• JJM...
• October 14, 2014

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

• Bes...
• December 30, 2015

For Weight Loss (Obesity/Overweight) "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 gets used to a gallon a day of water... try it. When your heart races, take slow, gentle breaths until you feel your heart slow."

• Nur...
• November 8, 2016

For Weight Loss (Obesity/Overweight) "I am a 32-year-old nurse and mom of 5. Before I started taking Fastin, I was 269 pounds. I'm only 5 feet 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 is 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 to actually burn off the fat, you have to pump the blood harder and faster. Works for the obese."

• Che...
• Taken for less than 1 month
• October 24, 2014

For Weight Loss (Obesity/Overweight) "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."

• Mic...
• September 8, 2015

For Weight Loss (Obesity/Overweight) "I tried Fastin for the first time today, which I purchased over the counter. Within 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 I 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."

• yel...
• January 22, 2014

For Weight Loss (Obesity/Overweight) "I took a pill this morning with some tea, and while I was eating breakfast, I noticed my heart rate skyrocket. 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 quickly, 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 too 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."

• Mat...
• Taken for 2 to 5 years
• October 9, 2019

For Weight Loss (Obesity/Overweight) "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 first-time users taking a whole pill. You will feel like you are having an anxiety attack."

• dai...
• June 16, 2016

For Weight Loss (Obesity/Overweight) "I used to take Fastin/Fastin XR in 2012. Within a few short months, I went from a size 9/10 to a 4. I kept the weight off for 3 years after stopping this product. I’m only 5’3″, so all the extra weight on me was really noticeable. I didn’t like the side effects at all: shaking, racing heart…but it definitely worked. I just started taking this product again a few days ago because I’ve gained 35+ lbs within 4 months due to major lifestyle changes. I’m trying to get back on track again. Hopefully, I’ll get similar results this time around too."

• Gol...
• June 29, 2016

For Weight Loss (Obesity/Overweight) "So the first time I took half a pill, I had no side effects. However, the second time I took 1/2 with an empty stomach, and I had to go to the hospital. My heart was racing, and I couldn't breathe, the pain in my chest scared the shit out of me enough to stop using it altogether."

• Bec...
• Taken for less than 1 month
• August 1, 2019

For Weight Loss (Obesity/Overweight) "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!"

• La-...
• Taken for 1 to 6 months
• December 13, 2015

For Weight Loss (Obesity/Overweight) "I was prescribed Fastin for weight loss. The prescription pills worked great, not a single bad side effect. I lost over 50 lbs in about 4 months. It gave me energy to start working out, and WOW did my concentration for work improve. However, the pills were costly and given out in the office only. So every month it was $40 for the doctor visit and weigh-in, and another $40 for 1 month's worth of pills. When I was unable to afford this regimen, I looked for cheaper alternatives. I got some over-the-counter bottle of Fastin, I bought 2 bottles. These are unhealthy, way over-caffeinated crap! I had gotten very ill halfway into taking the first bottle and had to stop because of jitters, headache, paranoia, racing heart!!! My advice, pay for the real stuff."

• Glo...
• April 12, 2017

For Weight Loss (Obesity/Overweight) "Use with caution! I was stupid enough to take a whole pill, and I thought I was going to die. My heart was racing even though I was laying perfectly still, and the world was swimming like I was drunk. The effects have lessened over the course of a few hours, but I will definitely not take more than 1/4 of one of these pills in the future!"

• ANA...
• Taken for less than 1 month
• June 17, 2019

For Weight Loss (Obesity/Overweight) "So I finally got the nerve to try Fastin. I started with only half a dose, and I felt my pulse get a little higher, but that was it. What surprised me is that it definitely works as an appetite suppressant and clearly curbs your appetite. If taken carefully, you will see success. I will post more with later results. God bless..."

• Cry...
• June 22, 2019

For Weight Loss (Obesity/Overweight) "Got these pills and took a pill after breakfast, and my heart felt like it was going to pop out of my chest. Increased heart rate, blood pressure. Also gave me a terrible headache and nausea. Felt like I was going to die. Had to go to the hospital, and the doctor told me I was getting an anxiety attack as well. Would not recommend it. Terrible experience."

• C-a...
• January 8, 2016

For Weight Loss (Obesity/Overweight) "I made it through 3 days and discarded the bottle. I read the reviews and took the advice of most to only do a half pill. I am glad I did as the effects from just a half pill were enough to scare me. Within about 15 minutes, it felt like my heart was going to explode out of my chest. This lasted about 30 minutes, then it calmed down to a less fearful level. I felt pretty jittery and certainly like I was on 'something' for several hours. I took a 1/2 tablet twice a day, ate first to lessen the side effects. By day three, and again my heart just going nuts, and thinking how silly this will be if I have to go to the hospital, I said no more. Threw away the bottle. It will be easier to just not eat ice cream at midnight! :-)"

• Tex...
• March 1, 2021

For Weight Loss (Obesity/Overweight) "I took half of a pill, and the first time, I did experience my heart racing. It did, however, curb my appetite. When I would take half, I noticed the other half was a crumbly pill form. I’m not sure if anyone else has had this happen."

• Sas...
• Taken for less than 1 month
• September 24, 2018

For Weight Loss (Obesity/Overweight) "My first time taking the Fastin pill was yesterday, and I was very scared. My heart started beating so fast and loud I could hear and feel it from my heart up to my throat pounding. I now see where everyone says you can cut it in half and try it from there, so I’m gonna try that and I’ll post results later on."

• Ros...
• Taken for 6 months to 1 year
• April 9, 2019

For Weight Loss (Obesity/Overweight) "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 heart rate and slightly the jitters. To be honest, I haven't seen much of a weight loss. 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 35 lbs, so that there is inspiring me to push forward to achieve my weight loss goal."

• Kus...
• Taken for less than 1 month
• April 16, 2020

For Weight Loss (Obesity/Overweight) "Started taking Fastin yesterday. Had increased heart rate and high blood pressure. Felt like I was having a heart attack."

• mam...
• Taken for less than 1 month
• June 28, 2014

For Weight Loss (Obesity/Overweight) "I took Fastin this morning, and within 30 minutes, my heart was pounding so hard I thought I was going to throw up. I don't like the way it made me feel."

• lil...
• Taken for less than 1 month
• December 12, 2021

For Weight Loss (Obesity/Overweight) "Weird, but I have no side effects except no appetite. None of that fast heart beating or anything else! I love this stuff!"

• vil...
• Taken for less than 1 month
• October 23, 2015

For Weight Loss (Obesity/Overweight) "The pill gives you a lot of energy, pill makes your heart beat fast for the first hour, is a great appetite suppressant."

• car...
• Taken for less than 1 month
• July 17, 2017

For Weight Loss (Obesity/Overweight) "Way too much stimulant- increased heart rate and blood pressure immediately after taking one pill."