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Pregnancy: Pregnancy Categories C (first trimester) and D (second and third trimesters) (see Fetal/Neonatal Morbidity and Mortality under Precautions).
Lactation: It is not known whether irbesartan is distributed in human milk. Discontinue breastfeeding or drug due to potential risk to breastfeeding infants, taking into consideration the importance of the drug to the mother.
