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Pregnancy: Category C.
There are no adequate and well-controlled studies in pregnant women. ENCAVIR should be used during pregnancy only if clearly needed and after careful consideration of the risks and benefits.
Lactation: Entecavir is excreted into the milk of rats. It is not known whether this drug is excreted in human milk. Discontinue nursing or ENCAVIR, taking into account the importance of ENCAVIR to the mother.
