GUANADREL IS PREGNANCY CATEGORY B
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The FDA-assigned pregnancy category:
Category A
Adequate and well-controlled studies have failed to demonstrate a risk to
the fetus in the first trimester of pregnancy (and there is no evidence of risk
in later trimesters).
Category B
Animal reproduction studies have failed to demonstrate a risk to the fetus
and there are no adequate and well-controlled studies in pregnant women.
Category C
Animal reproduction studies have shown an adverse effect on the fetus and
there are no adequate and well-controlled studies in humans, but potential
benefits may warrant use of the drug in pregnant women despite potential risks.
Category D
There is positive evidence of human fetal risk based on adverse reaction
data from investigational or marketing experience or studies in humans, but
potential benefits may warrant use of the drug in pregnant women despite
potential risks.
Category X
Studies in animals or humans have demonstrated fetal abnormalities and/or
there is positive evidence of human fetal risk based on adverse reaction data
from investigational or marketing experience, and the risks involved in use of
the drug in pregnant women clearly outweigh potential benefits.