If she doesn't start to improve within a couple of days then she may need another med added or different meds.
If there is fluid in her lungs, she might need Lasix for a few days - although some say this only applies in some cases. Best to consult a good vet.
What is she talking?
If you can post a video
along with her weight (g) the meds, their strength (mg/Ib or kg), and the dose being given (mg/Ib or kg) then people might be able to give some helpful feedback
another site to post on is on facebook (fb) Real Rat Lovers Want to Know
I hope she is soon feeling better