No information is available on the clinical use of daclizumab during breastfeeding. Because daclizumab is a large protein molecule with a molecular weight of about 144,000 Da, the amount in milk is likely to be very low.[1] It is also likely to be partially destroyed in the infant's gastrointestinal tract and absorption by the infant is probably minimal.[2] Until more data become available, daclizumab should be used with caution during breastfeeding, especially while nursing a newborn or preterm infant. Waiting for at least 2 weeks postpartum to resume therapy may minimize transfer to the infant.[3] Some authors recommend avoiding breastfeeding with daclizumab.[4,5]
Drug Levels
Maternal Levels. Relevant published information was not found as of the revision date.
Infant Levels. Relevant published information was not found as of the revision date.
Effects in Breastfed Infants
Relevant published information was not found as of the revision date.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
Stratigakis A, Paty D, Zou P, et al. A regression approach for assessing large molecular drug concentration in breast milk. Reprod Breed 2023;3:199-207. doi:10.1016/j.repbre.2023.10.003 [CrossRef]
2.
Anderson PO. Monoclonal antibodies during breastfeeding. Breastfeed Med 2021;16:591-3. [PubMed: 33956488]
3.
Krysko KM, Dobson R, Alroughani R, et al. Family planning considerations in people with multiple sclerosis. Lancet Neurol 2023;22:350-66. [PubMed: 36931808]
4.
Cree BA. Update on reproductive safety of current and emerging disease-modifying therapies for multiple sclerosis. Mult Scler 2013;19:835-43. [PubMed: 23319073]
5.
Almas S, Vance J, Baker T, Hale T. Management of multiple sclerosis in the breastfeeding mother. Mult Scler Int 2016;2016:6527458. [PMC free article: PMC4757692] [PubMed: 26966579]
Substance Identification
Substance Name
Daclizumab
CAS Registry Number
152923-56-3
Drug Class
Breast Feeding
Lactation
Milk, Human
Antibodies, Monoclonal, Humanized
Disclaimer: Information presented in this database is not meant as a substitute for professional judgment. You should consult your healthcare provider for breastfeeding advice related to your particular situation. The U.S. government does not warrant or assume any liability or responsibility for the accuracy or completeness of the information on this Site.
