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Caffeine and Tremors: What Users Say

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

Tremors: mentioned by 4 users (10.3%)

Based on user experiences from 39 Caffeine reviews, the following table shows the most commonly mentioned side effects.

All user comments are moderated by Drugs.com. Each review is verified for relevance and screened for inappropriate content. Side effects are user-reported and not clinically verified.

anxiety 10.3%
tremors 10.3%
headaches 7.7%
heart attack 7.7%
heart palpitations 7.7%
insomnia 7.7%
nausea 7.7%

Reviews for Caffeine

Showing 4 reviews tagged with "tremors". Clear filters to view all 39 reviews.
Commonly mentioned side effects
  • Dyl...
  • Taken for less than 1 month
  • February 22, 2015

Caffeine "Because I'm currently being treated for depression, anxiety, compulsive habits, and insomnia, my doctor didn't want to add ADHD medicine to the mix. I've had horrible anxiety along with my ADHD my whole life. Not to mention my insomnia, so it was very hard to tell whether the Vivarin worked for me. I would take it occasionally, and when I took it, it just made me even more anxious and jumpy. It could be the way the medication is released. But I must say, one cup of coffee or one Monster, bam, I instantly have an elevated mood along with increased attention and concentration. I do get shaky, but very minor. For anyone out there who is concerned about their ADHD, I definitely recommend experimenting with caffeine, it is very helpful."

8 / 10
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17 Report
  • Apn...
  • Taken for 5 to 10 years
  • December 28, 2022

Caffeine "I have been taking Vivarin on and off since middle school as a form of self-treatment for sleep apnea and narcolepsy type 1, since I was scared of taking amphetamines and such. Worked well for about 4-5 years, while spending months being between 200-400 mg/d, while also taking 3-12 month breaks due to tolerance build-up. Up until recently, after being off Vivarin for about a year, I decided to buy a box and noticed that a different company (I guess) had taken over the rights for Vivarin? The box looks different but still gets me slightly stimulated. 5 years ago, I would have given it a 7/10, but now it gets a 5/10 since it barely even works. After a year of being caffeine-free, lol. Pros are it gets you very much physically stimulated, turns on your peripheral nervous system, fatigue is reduced, metabolism is at full speed, and has a subtle 'good feeling' similar to Adderall, but it's honestly kinda poopy. Cons include increased anxiety (already have an anxiety disorder), insomnia, jitters, and strong crash even if you didn't feel it."

5 / 10
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3 Report
  • You...
  • March 13, 2018

For Asthma "Caffeine is better than nothing and if it doesn't give you insomnia or jitters, it's probably helpful for us asthmatics to have a daily cup of coffee or tea. However, I can't say that it's overly helpful, and I certainly don't think it should be used before an actual asthma medication."

7 / 10
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2 Report

Frequently asked questions

  • Anonymous
  • Taken for less than 1 month
  • September 29, 2012

For Asthma "This medicine works very well at reducing my asthma symptoms. However, it causes me to have tremors."

7 / 10
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7 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.