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Old 05-12-2013
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Calculator How to calculate the drug half life?

Q1) what is the half life of drug at 31.73 degrees?

i did t1/2= ln(2)/k

t1/2= ln(2)/0.01

= 69 days. is that correct?

Q2) what is the time to reach 90% original activity (10% degradation) of drug z at this temp?
i did
t= -ln(0.90)/ 0.01 = 10days

a- 5 days
b- 4 days
c- 1 week
d- 10 days
e- 3 days
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Pharmacology-, Step-1-Questions

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