The patient should be advised before taking this medicine if she is pregnant or breast-feeding, thinks she may be pregnant or is planning to have a baby.
Fentanyl Injection should not be used during childbirth as it can affect the baby's breathing.
Fentanyl is excreted into breast milk. The patient should not breastfeed or use breast milk that has been expressed for 24 hours after having Fentanyl Injection.