Paractetamol: The half life of paractamol is about 4 hours this means half of the drug is removed every 4 hours. Then an additional 1/2 of what is left is removed in another 4 hours and so on. So it will take multiples of 4 hours for it to be completely out of our system depending on the initial dose and on when additional doses are taken.
Answered 9/24/2014
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