According to the U.S. Food and Drug Administration, pregnancy category B for a drug means:

Question

Quizplus · Accepted Answer

Pregnancy categories are classified as follows: A, no risk to the fetus in any trimester; B, no adverse effect demonstrated in animals, no human studies available; C, studies with animals have shown adverse reaction, no human studies are available; and D, definite fetal risk exists, may be given despite risk to the fetus if needed for a life-threatening condition.