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Caffeine and Nausea: 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

Nausea: 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
  • Ozy...
  • Taken for less than 1 month
  • March 12, 2021

For Drowsiness "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
  • Ano...
  • March 14, 2016

For Drowsiness "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
  • Ora...
  • Taken for less than 1 month
  • April 11, 2016

For Drowsiness "Very dry mouth, nausea, some foods I eat are too salty, can't think, overwhelmed, can't sleep."

2 / 10
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5 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.