Was it prescribed by a doctor? Please avoid self medication and only use if prescribed by a doctor.

U should breastfeed her more especially after each episode of pooping. The greenish poo maybe pointing towards your being underfed. Ciproflox is not usually being prescribed for babies, a 3 weeks old at that. Had dsame experience with my baby, I just continued breastfeeding her at interval since she was active and sucks well, I relaxed and d pooping stopped on its own.