Caffeine: Caffeine is a stimulant, it can make you jittery, sleeplessness, heart rate can go up, make you go to the bathroom more. Etc.
Answered 8/8/2014
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Caffeine: Possible side effects: nervousness, insomnia, restlessness, irritability feeling hyper, ringing in ears, rapid or irregular heart rate, nausea, vomiting, GI upset, shakiness, dizziness or allergic reaction.
Answered 8/8/2014
3.8k views
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A doctor has provided 1 answer
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