Orange colored stools can be caused by liver/gall bladder issues, as described on this page (I've had this issue):
www.belmarrahealth.com/what-causes-orange-poop/ and this page shows that Cefdinir can change the stool to a reddish color, which can look kind of orange:
www.rxlist.com/omnicef-side-effects-drug-center.htm I would encourage you to take a hard look at your liver detoxing/protection routines and make sure you are doing enough there, talk to your LLMD about
the possibility of the cefdinir causing it.