Actually, ketorolac (Toradol) has all the markings of being extremely safe
during breastfeeding.  It has high protein binding, relatively short half
life, low MP ratio, and only partial, though relatively high oral
bioavailability.

The other drug, metaxalone, sounds like many other muscle
relaxants--useless.  No information in Hale.  Probably baby would get
insignificant amounts.

Your doctor sounds like a real power tripper.  She probably just loved
making you sacrifice breastfeeding on the altar of her ignorance.  The stuff
about the PDR is pure nonsense.  If you were to sue, she would use
information in Hale or in Briggs as her defence.

I would show her the information in Hale, but don't expect much.  Ignorance
is bliss.

Jack Newman, MD, FRCPC