Is it dangerous to mix Acetaminophen (Tylenol) and Mountain Dew (caffeine)?

StupidIntellect
I heard that taking acetaminophen is best for headaches and so is drinking caffeine so I mixed them. I took 1 and a half Acetaminophen 800s and about 2 cups of Mountain Dew is that dangerous?
Is it dangerous to mix Acetaminophen (Tylenol) and Mountain Dew (caffeine)?
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