Pregnancy: There are no adequate and well-controlled studies in pregnant women. Ultiva should be used during pregnancy only if the potential benefit justifies the potential risk to the foetus.
Labour and delivery: There are insufficient data to recommend Ultiva for use during labour and caesarean section. It is known that remifentanil crosses the placental barrier and fentanyl analogues can cause respiratory depression in the child. In case remifentanil is administered nevertheless, the patient and the neonate must be monitored for signs of excess sedation or respiratory depression (see Precautions).
Breast-feeding: It is not known whether remifentanil is excreted in human milk. However, because fentanyl analogues are excreted in human milk and remifentanil related material was found in rat milk after dosing with remifentanil, nursing mothers should be advised to discontinue breast-feeding for 24 hours following administration of Ultiva.