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Caffeine for Drowsiness User Reviews

Brand names: Vivarin, NoDoz, Molie, Stay Awake, Diurex Ultra, Cafcit, 357 HR Magnum, Enerjets, Fastlene, Jet Alert Regular Strength, Jet Alert Double Strength, Jet Alert Maximum Strength, ConRx Alert, Pep-Back ReCharge, Caffedrine, Alert, Diurex Maximum Relief Water Caps Pep-Back Ultra Keep Going Overtime Valentine …show all brand names

Rating: 6.4

Caffeine has an average rating of 6.4 out of 10 from a total of 31 reviews for the treatment of drowsiness. 58% of reviewers reported a positive experience, while 35% reported a negative experience.

10
29%
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23%
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6%
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3%
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3%
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0%
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3%
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6%
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26%

Reviews for Caffeine

Commonly mentioned side effects
  • Abi...
  • Taken for 1 to 6 months
  • January 14, 2020

Caffeine "I have ADD, and I'm super sensitive to caffeine, so when I split this pill in half starting at 6:30 a.m. before work, it lasts until 4 p.m., and at 4 p.m. I take the second half, and I could be up until 1 a.m., but I'm capable of getting myself to sleep before then. I personally love it. I hate coffee, I hate the acid reflux from coffee, and I hate the staining of teeth, which this removes. Obviously, this isn't recommended for everyone, but I am a 30-year-old female, and it helps me keep attention and stay productive at home, otherwise, I would be a chill zombie."

9 / 10
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37 Report
  • GAa...
  • Taken for 5 to 10 years
  • April 7, 2018

Caffeine "Highly recommended. With being a mom and sole provider for my children, my work schedule has consisted of working 6-7 days straight for the past 6 1/2 years. From the overwhelm of stress of working in the field of healthcare, in addition to multitasking a crazy, busy life being mom to three sons, I cannot express enough how thankful Vivarin has impacted my life. Between weight controls and working so much, there are no time outs for exercise. Especially with my currently enrolled in school pursuing my bachelor's degree in Healthcare Administration. Vivarin has definitely helped me in every aspect to accomplish my goals."

10 / 10
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32 Report
  • Ell...
  • Taken for 1 to 2 years
  • January 9, 2020

Caffeine "I suffer from severe OCD and experience debilitating lack of focus and attention because of it. I'm usually stuck in my head, and it makes it hard for me to stay in the present moment, which can be very stressful for me. However, NoDoz helps me focus and get out of my head, which quietens the OCD thoughts and compulsions in return. I'm not sure why, though, most people get worse OCD symptoms if they are on caffeine, but I barely consume caffeine, so when I do take a NoDoz tablet, it affects me positively. It's almost like a lifesaver when I'm experiencing a bad OCD day. NoDoz is best to take in the morning or else you will not be able to sleep before bed. :) I only need to take one for it to work, sometimes two."

10 / 10
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23 Report

Frequently asked questions

  • Anonymous
  • April 15, 2012

Caffeine "This is very effective. Sometimes, I only take half of one. Just remember to stop taking it about 6 hours before bedtime. Cheaper than energy drinks loaded with sugar. Easier on my tummy than coffee, and it doesn't stain my teeth like colas. Caffeine is a diuretic, so drink plenty of water to make you feel better all day."

8 / 10
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47 Report
  • agi...
  • May 22, 2018

Caffeine "I took Vivarin almost every day for over 15 years, close to 21 years. I didn't realize that I was suffering from hypothyroidism. All I knew was that I had the normal energy that I was missing. I finally started taking 1/2 tablet because a whole tablet was causing my heart to flutter. Soon I was taking 1/4 of a tablet, and finally I had to quit taking them. After all those years, I am suffering with a damaged heart, heart arrhythmia (AFIB), tachycardia, and congestive heart failure. I have no blockages in my arteries, just a damaged heart and the baggage."

2 / 10
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33 Report

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  • Jor...
  • December 8, 2016

Caffeine "I've used NoDoz plenty of times in the past and would highly recommend it to those who need a midday/afternoon energy boost for work or study. I would usually only take one tablet a day when I do use NoDoz, and usually within 30 minutes to 1 hour, I start to feel the results. It keeps me awake, focused, and energetic while on the job. There are some negatives with NoDoz, though: - if you take them too often, their effectiveness starts to wear off, e.g., you will still feel tired and not alert, but you won't be able to sleep. - NoDoz can interrupt your sleep and keep you awake during the night. - I would always recommend having plenty of water while using NoDoz, otherwise, you may start to feel dehydrated, which may lead to headaches."

8 / 10
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30 Report
  • MJa...
  • September 7, 2019

Caffeine "For some, it doesn't appear to work the same, and maybe they have a large caffeine intake to start with. I just have 1 morning coffee a day, and I find 'No Doz' excellent for me. I won't travel without taking at least 1, I can feel confident I can get to my destination in an alert and safe driving manner, and I enjoy the drive. Occasionally, I will take one just prior to lunchtime to help me get through the working day, it's an amazing pickup for me."

10 / 10
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18 Report

More FAQ

  • Hot...
  • Taken for 2 to 5 years
  • May 16, 2012

Caffeine "NoDoz is the only medicine I can take that helps with my periodic fatigue and sleepiness during the day. One pill around 10 a.m. gets me going to complete my most stressful job. I don't take it daily, but when I did, I could instantly see the difference."

9 / 10
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30 Report
  • Geo...
  • January 22, 2011

Caffeine "I give Vivarin a seven for an OTC medication. I don't sleep well at all at night, and I usually average 3-4 hours. I stay in pain, so when my alarm goes off in the morning, it is much easier to put a tablet in my mouth along with my pain medication and reset the alarm for one hour later. When it goes off, I feel much better, for it has helped awaken me, and the methadone had started to work for the pain. It doesn't upset my stomach as much as the No Doz. Then later, if I want a cup of coffee and I have time to drink it, I can, but usually I don't have the time, and I have to pop another Vivarin to keep me going."

7 / 10
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32 Report
  • Kur...
  • Taken for 10 years or more
  • June 26, 2023

Caffeine "I have been taking Vivarin, 200 mg since 1988, believe it or not, at least once a day, sometimes twice. I started using it when I was a truck driver in Germany, in the Army. I was driving night runs in a convoy and didn't know my way to the drop and was seriously nodding off on the autobahn and might have been killed. We pulled over at a rest stop, and one of my fellow truckers told me to 'take this.' I didn't know what it was and that sounds stupid, but I knew the guy and knew he wouldn't give me anything 'illegal' or something that might hurt me. Twenty minutes in, I'm rolling down the autobahn, completely awake and singing to my music! Over the years, I've used it mostly as a 'pre-workout' and, as I noted, taken it up to twice daily. Here we are, some 35 years later, and I use it as my 'morning coffee' as I don't drink coffee. No side effects except the typical 'caffeine headache' if I go a few days without any caffeine! Wonderful product!"

10 / 10
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5 Report
  • Dis...
  • Taken for 1 to 6 months
  • August 22, 2019

Caffeine "So I drive trucks, and I have to drive at different times of the day. A friend told me to buy NoDoz, and it didn't work at all. When I took this medication, I was instantly tired, and I almost fell asleep at the wheel, so I definitely do not recommend this at all to try to stay awake."

1 / 10
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15 Report
  • Dor...
  • Taken for less than 1 month
  • October 9, 2021

Caffeine "I've just taken my first one today, about 2 hours ago. I have severe depression and chronic fatigue, so I'm just trying to see if they'll help at all. I'm certainly more awake than I've been the past week, not particularly energetic, but definitely an improvement. As someone who struggles to move without a Red Bull, this is definitely far cheaper than 5 a week at 5 dollars a can. Caffeine never had a strong effect on me, so I'm going to take another and see how it goes."

6 / 10
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4 Report
  • yun...
  • Taken for 1 to 2 years
  • July 28, 2024

Caffeine "It is very effective in eliminating somatic/bodily fatigue. Excellent for workouts. Attention will improve too. I have ADHD and always pair this with Adderall. My psychiatrist approves of this too! Although this may not provide the mental effects that Adderall does, it most certainly will keep you awake. It provides very high energy and some focus."

10 / 10
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1 Report
  • You...
  • November 17, 2015

"I must say that Viavarin has been a lifesaver. I only take one tablet at a time, could not imagine taking two. It gives me approximately 4-6 hours of predictable energy. I feel when it kicks in, and I know when I am coming down. If I have a long day, I take one early and one later, but I usually cannot sleep if I have two in my system. Being a student, it really helps me focus. And personally, I don't like the NoDoz, they take a longer time to kick in and thus longer to wear off."

9 / 10
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5 Report
  • Ozy...
  • Taken for less than 1 month
  • March 12, 2021

Caffeine "I drive at night, it gets to like 9:30 or 10 pm, and bang! Drowsiness hits me like a sledgehammer! I feel like I've been drugged, something pulling my eyes shut. So a friend suggested NoDoz, took one pill... Nothing. 2 hours later took another... started feeling dizzy as anything, then nauseous and still falling asleep. In fact, if anything, it made the drowsiness even worse! Felt dizzy and sick all the next day. Will never touch them again, ever! Gone back to drinking Red Bull."

1 / 10
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4 Report
  • Ell...
  • June 10, 2022

Caffeine "I bought this today for the first time and took 1 tablet, and here I am feeling so horrible with anxiety going through the roof, and so irritated, can’t breathe properly, and so paranoid I’m gonna die. I will never touch this stuff again ever!!!! It should be removed from the shelves of supermarkets due to its dangerous side effects!!!!"

1 / 10
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4 Report
  • Ano...
  • March 14, 2016

Caffeine "Never again will I take this medicine! The recommended dosage isn't listed on the packet that contains two pills, so of course I took both. I ended up with chest pains that lasted almost 6 hours, nauseated, sweating, headache, and to top it off, paranoid that I was overdosing and going to have a heart attack! I'll stick with coffee from now on, definitely don't recommend it!"

1 / 10
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19 Report
  • JRO...
  • Taken for 1 to 6 months
  • June 29, 2012

Caffeine "Great stuff. NoDoz really does work. Better than most stuff I've tried. Would definitely recommend."

9 / 10
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35 Report
  • Anonymous
  • April 7, 2009

Caffeine "I love No-Doz (caffeine citrate). Way cheaper than Red Bull, easier on the stomach than coffee, no stained teeth or coffee breath."

10 / 10
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40 Report
  • Inf...
  • Taken for 10 years or more
  • September 16, 2015

Caffeine "NoDoze (caffeine) for hypersomnia actually works better for me than amphetamines such as Adderall."

10 / 10
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26 Report
  • ken...
  • Taken for 5 to 10 years
  • January 18, 2013

Caffeine "I use it for fatigue. Break the pill in half, that's 100 mg, like a good cup of coffee."

9 / 10
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31 Report
  • Gab...
  • Taken for 1 to 6 months
  • February 2, 2019

Caffeine "Take this before a concert or a long shift if you're tired. Lasts about 4 hours. Wouldn't take it any later than 7 pm if you want to sleep."

9 / 10
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16 Report
  • Inf...
  • Taken for 10 years or more
  • September 16, 2015

Caffeine "Vivarin for my hypersomnia worked better than taking amphetamines for wakefulness."

10 / 10
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20 Report
  • Mik...
  • December 22, 2016

Caffeine "I drove from Las Vegas through Iowa. It is intense, it works."

10 / 10
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19 Report
  • Tir...
  • Taken for less than 1 month
  • August 11, 2016

Caffeine "In the 8 hours of taking one tablet, I had about as many experiences of feeling I was going to have a stroke or heart attack. And you can buy it in the supermarket, never again."

1 / 10
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17 Report

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Reviews may be edited to correct grammar/spelling or remove inappropriate content. Reviews appearing to come from parties with a vested interest are not published. This information is not intended to endorse any medication and should not replace the expertise and judgment of healthcare professionals.