My doctor prescription me a medication and said I must drink 2L of water each day to make sure the medication will have maximum strength. Why does me peeing all day make the medication work better?

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[–] 10 points 4 months ago

As others have said, ask your doctor.

But to add another potential reason, some medications have dehydration as a side effect (maybe it messes with thirst cues, increases urination frequency, increases sweating, etc).

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