Which of the following is true regarding St. John's Wort?
a. T ½ of 60 hrs
b. 40-60% reaches systemic circulation
c. Significant inhibition of Cyt. P450 system
d. Peak blood levels occur in 10-15 minutes
e. A and B
f. C and D
g. All of the above
Answer: c. Significant inhibition of Cyt. P450 system
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