Anakinra use while Breastfeeding
Drugs containing Anakinra: Kineret
Anakinra Levels and Effects while Breastfeeding
Summary of Use during Lactation
Anainra is the pharmaceutical name for recombinant human interleukin-1 receptor antagonist (IL-1Ra). IL-1Ra is a normal component of human milk where it may play a role as an anti-inflammatory agent. No data exist on the excretion of anakinra into breastmilk after exogenous administration. Several infants have been breastfed during maternal anakinra therapy with no obvious adverse effects. If anakinra is required by the mother, it is not a reason to discontinue breastfeeding.
Maternal Levels. The concentration of IL-1Ra in colostrum in normal mothers was 672 ng/L, which was higher than the plasma concentration. Mature milk levels were lower than those in colostrum. Samples collected over a period of 2 to 6 months postpartum indicated that mothers continued to excrete IL-1Ra during this time. Mothers with acute mastitis had slightly higher average levels of IL-1Ra than levels after recovery, but the median values were the same. The levels found in these mothers were the same as those of control mothers.
Infant Levels. Relevant published information was not found as of the revision date.
Effects in Breastfed Infants
A woman was receiving anakinra 100 mg daily for adult-onset Still's disease during pregnancy and lactation. Her breastfed (extent not stated) infant gained wight and appeared to have normal psychomotor development during an unspecified follow-up period.
In an international multicenter study of mothers exposed to interleukin-1 receptor antagonists, 7 babies were breastfed (extent not stated) by mothers receiving anakinra for 3 to 40 weeks. No infections or developmental abnormalities were reported.
Effects on Lactation and Breastmilk
Relevant published information was not found as of the revision date.
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