Hi everyone! I have a bottle of the antibiotic Macrobid (Nitrofurantoin) that a family member gave me (she saves the antibiotics for me in case I need/can use them with the squirrels). Can squirrels take this antibiotic? I looked it up & for people it only treats UTI/bladder infections. Looks like its used in animals in other countries in chickens (in their feed). But read that studies of this drug show several metabolites of nitrofurans cause cancer or genetic damage in rats. Yikes! Thoughts on whether or not I should hang on to it?