- And got the T-shirt
Z-pac is azithromycin, and while it's effective against a lot of organisms, it's very hard on a pig's gut. With a baby pig, I'd definitely want to try something else first before pulling out such a big gun. And even if I had to use it, I'd want to try it in a nebulized form first.
What kind of symptoms is she having? And how was the possible pneumonia diagnosed?
Also, was this an exotic vet who treated her? Small animal vets are trained to treat dogs and cats, not "pocket" pets.