My Dribbles was diagnosed with pneumonia last week. He's on an antibiotic and I have ordered a nebulizer and have a prescription for Mucomyst that I will pick up today (I'm hoping the nebulizer comes in today as well!!!).
My vet has never nebulized a rat before and just doesn't know much so I wanted to check on here and see what people have had success with. She is having us give one half of a vial in the morning (for 30-60 minutes) and the other half at night (same amount of time). I don't know yet how large the vials are or what the concentration is.

I will find that out when I pick them up.
I had read to possibly add saline to the mix? I read some had success using the saline, others preferred it straight. What have you done and how has it worked?
If he shows signs of improvement with the Mucomyst, I plan on also putting him on prednisone to help with any inflammation he may have. The vet also said he has some indication of heart issues as well. She is really not helping me much here and I am just so frustrated trying to get her to give me what I want!!! I think she doesn't think he's worth it.

Any suggestions on what you have done when nebulizing with Mucomyst would be great! Also your experiences with pneumonia and treatments would be very helpful. I've been researching on here, but it also helps to have updates on how things ended up.