Fentanyl Pregnancy and Breastfeeding Warnings

Fentanyl is also known as: Abstral, Actiq, Duragesic, Duragesic-100, Duragesic-12, Duragesic-25, Duragesic-50, Duragesic-75, Fentanyl Transdermal System, Fentora, Ionsys, Lazanda, Onsolis, Sublimaze, Subsys

Fentanyl Pregnancy Warnings

Use of this drug is not recommended unless the benefit outweighs the risk to the developing fetus. AU TGA pregnancy category: C US FDA pregnancy category: C

Animal studies have failed to reveal evidence of teratogenicity; however, some reproductive toxicity has been reported. Maternal use of fentanyl may cause withdrawal symptoms and respiratory depression in the newborn infant. There are no controlled data in human pregnancy. In women treated acutely with IV or epidural fentanyl during labor, symptoms of neonatal respiratory or neurological depression were no more frequent than would be expected in infants of untreated mothers. Transient neonatal muscular rigidity has been reported in infants whose mothers were treated with IV fentanyl. Chronic maternal treatment with fentanyl during pregnancy has been associated with transient respiratory depression, behavioral changes, or seizures in newborn infants characteristic of neonatal abstinence syndrome. AU TGA pregnancy category C: Drugs which, owing to their pharmacological effects, have caused or may be suspected of causing, harmful effects on the human fetus or neonate without causing malformations. These effects may be reversible. Accompanying texts should be consulted for further details. US FDA pregnancy category C: Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

Fentanyl Breastfeeding Warnings

This drug is excreted into human milk and achieves levels in colostrum which are greater than maternal serum levels. No adverse effects have been reported in nursing infants. Symptoms of opioid withdrawal may occur in infants at the cessation of nursing. One small study has reported the pharmacokinetic data of five lactating women who underwent induction of anesthesia with this drug. In 24 hours of milk collection, an average of 0.033% (0.006% to 0.073%) of the maternal fentanyl was collected in the milk representing an average of 0.039% of the elimination clearance of the drug. The author of the study concluded that the amount of fentanyl excreted into the milk within 24 hours of induction of anesthesia provided insufficient justification to interrupt breast-feeding.

This drug should not be used unless there are no safer alternatives. Excreted into human milk: Yes Comments: -General manufacturer recommendations: 1) Lozenge: Breast-feeding is not recommended for at least 48 hours after the last dose. 2) IV or IM: Breast-feeding is not recommended for at least 24 hours after the last dose. 3) Transdermal patch: Breast-feeding is not recommended for at least 72 hours after the last dose. -This drug considered compatible with breastfeeding by the American Academy of Pediatrics. -This drug may cause sedation and respiratory depression in the breastfed child.

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