Is taking a 200mg caffeine pill too much?

Vivarin, over the counter. I tried to replace my coffee because coffee has a lot of acid.
Each pill has 200mg, i take less than the whole pill at once, i take like 150-190mg total.
Update: yet-knish!, I thought it was 200mg for 1 cup? Thanks
Update 2: I mean exactly as I said, Is it too much caffeine? is it overdosing? is it more than the average dose?
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