I have heard that taking over the normal dosage of Ibuprofen results in "loopy" effects. I was wondering if taking over the normal dosage of Excedrin would result in the same? Or if this is even true?
I've had a headache and already taken the recommended dosage, but am afraid if I take more I will become buzzed from this medicine, and seeing as I will be driving within the next few hours this could be a problem.
It's Excedrin extra strength, 250mg

Just wondering if anyone had had any type of experience like that with this type of medication.

Excedrin contains caffeine and tylenol. The caffene is no more than you would get from a cup of coffee. Just don't overdo it.