Mother of a 10-month old, was on day three of a 5-day Z-Pak of azithromycin/Zithromax when the baby developed hives (which an older daughter had also had once in response to antibiotics). The mother and father are both allergic to penicillin. This mother is understandably nervous about continuing to breastfeed and the baby possibly having a more severe allergic reaction. The mother has been told that while she takes the medication for five days, it remains active in her system for an additional five. So she has been advised to pump and sacrifice the milk for five days after ending the course of medication, plus an additional two days to clear it completely, given its long half-life.. While generally compatible with breastfeeding, with an L2 rating, in the Medications Forums at Hale's website (not taking questions now) he also mentions that it does remain active in the system for 10 days. Usually, since the medication is compatible with breastfeeding, that's not an issue. But in a special circumstance like this, when the baby has had an allergic reaction to the small amount transferred, would there be any way to say that the transfer would continue to be an issue during the additional five days plus two? Margaret Wills, LLLL, IBCLC Maryland *********************************************** Archives: http://community.lsoft.com/archives/LACTNET.html To reach list owners: [log in to unmask] Mail all list management commands to: [log in to unmask] COMMANDS: 1. To temporarily stop your subscription write in the body of an email: set lactnet nomail 2. To start it again: set lactnet mail 3. To unsubscribe: unsubscribe lactnet 4. To get a comprehensive list of rules and directions: get lactnet welcome