From experience it can take 2/3 days for gut motility to establish itself once more.
Is she drinking well? Could you syringe her some water to ensure she's well hydrated?
If only!! No chance of me syringing anything, I'm afraid... She developed a fear of syringes in the rescue I got her from, as the guy in charge of the rabbits wasn't the most gentle of handlers, and he medicated her after she was spayed
This is why the vet gave me some injectable meds to bring home yesterday.. But I cocked up the metacam this morning, it came out the other side of the 'tent' I'd made in her scruff I'm just useless
But! She is eating much more enthusiastically now, she's just had a heaped saucer full of wet Spring greens/parsley, with no hesitation at all... Poops are nowhere near enough still, but the size has improved. I'm hoping she's on her way back up now...