Monday August 9, 1999 - Question 3

Which of the following statements about pyrethrins is correct?

A. Pyrethrum contains six active pyrethrins and all are equally active.

B. Pyrethroids are synthetic analogs of pyrethrins.

C. Natural pyrethrins are less allergenic than pyrethroids

D. Patients sensitive to ragweed pollen need not worry about sensitivity to pyrethrins

E. Pyrethrins are the active extracts from the flowers of Malus domestica
 

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