Atacand has an FDA Boxed Warning against its use in pregnancy. Atacand should be stopped as soon as possible once pregnancy is detected. Atacand can cause harm and death to an unborn baby. Before you start taking Atacand, talk to your doctor about your:, Medications, Allergies, Current health problems and past medical history, Pregnancy or breastfeeding status, Atacand can cause low blood pressure. Patients should monitor their blood pressure regularly., Atacand can decrease kidney function., Atacand can increase potassium levels in the blood. Medications, Allergies, Current health problems and past medical history, Pregnancy or breastfeeding status