I am taking 20 mg of Simvastatin at bedtime. The last time was 17 hours ago. I just finished 1/4 of a small grapefruit, thinking it was a large orange. My wife verified that it was indeed a grapefruit. Is there any danger to me now because of this. Or will there be a problem, when I take my next 20 mg of Simvastatin in 9 hours. Should I drink a lot of water to dilute the effects of the grapefruit? Should I be aware of any particular medical problems?