No limit: There is not a limit in how long you can have caffeine after a concussion. Sometimes people with a head injury may have trouble sleeping, in such a case, avoid caffeine so that you can rest more easily.
Answered 1/10/2019
2.7k views
No specific time: Since concussion can cause fatigue and difficulty paying attention, a judicious use of caffeine may help.
Answered 10/3/2017
2.7k views
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A doctor has provided 1 answer
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