I have a 5 month old baby and i breastfeed . i have a urinary infection and i took azo maxium relif and want to know if is safe to feed my baby?

Probably yes: The consensus is that nobody knows. Fortunately, it is a Class B teratogen risk, so studies of its use during pregnancy did not result in any untoward effects on developing fetus.http://www.mayoclinic.org/drugs-supplements/phenazopyridine-oral-route/before-using/drg-20065473 The drug's half-life is 7.3 hours, so it will be entirely gone from your body by about 40 hours from your last dose.

Probably safe: Azo is listed as a class B drug which means there are no human studies but that animal studies failed to show any risk the fetus. With that being said, if you truly have a urinary tract infection you need an antibiotic-Azo will not treat an infection. See a doctor to get your urine checked.