Answer
Cayston (aztreonam lysine) can be used during breastfeeding, as breastfed infants' exposure is likely to be extremely low because maternal systemic concentrations after inhalation and oral absorption are low.
Sources for this answer
- Cayston 75 mg powder and solvent for nebuliser solutionGilead Sciences Ltd · emc · SmPC §4.6 Fertility, pregnancy and lactation · Version 20Document updated
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