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A member asked:
I took 1 pill of vivarin (caffeine) 1hr ago & never felt the effects. it recommends takin 1 every 3-4 hours can i take another 1? how can i keep awake?
A doctor has provided 1 answer
Vivarin (caffeine): Hi, I don't recommend that u take Vivarin, (caffeine) it has too much Caffein and it could harm u, especially with history of ur memory loss and insomnia.
Answered 10/22/2014
3.7k views
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