There I used 5 liters of blood (amount in human body) in my calculations. Now I realize I should have used the average amount of urine a person produces in the halflife of the drug. For instance, a person produces 2000ml of urine per day. So if there are six halflife a in a day for Vicodin, then I should have divided the ng/ml by 333ml. So:
5mg Vicodin = 5,000,000ng Vicodin
Per ml of urine at the start you would have 15,000ng/ml (5,000,000 divided by 333):
Hour 0= 15,000 (divide by 2 for each half life’s next calculation)
Hour 4=7,500
Hour 8=3,750
Hour 12=1,875
Hour 16=~1,000
Hour 20=500
Hour 24=250
Hour 28=125
….and by hour 32 you’re definitely good for a singular dose.
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