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Caffeine and Heart Attack: What Users Say

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

Heart attack: mentioned by 3 users (7.7%)

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

Commonly mentioned side effects
  • Tir...
  • Taken for less than 1 month
  • August 11, 2016

For Drowsiness "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
  • Rag...
  • Taken for less than 1 month
  • July 11, 2021

For Drowsiness "I took two of these, and 12 hrs later, symptoms that felt like a heart attack or stroke. I'm still awake. Never again."

1 / 10
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5 Report
  • Im...
  • May 8, 2019

For Drowsiness "Definitely would not recommend taking this product. I had to call an ambulance because I thought I was going to die of a heart attack. Very bad for your health."

1 / 10
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8 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.