new chicks cant walk

[ChickenCanoe]

Whatever that other bag was, I don't think it was an antibiotic. Antibiotics are for treating some bacterial infections. Those sulfa drugs are for treating protozoa.

 

[Eggcessive]

Could it have been Duramycin 10 which is tetracycline hydrochloride? That treats certain respiratory diseases caused by bacteria and mycoplasma. Sulfa antibiotics treat coccidiosis and coryza, along with some other bacterial infections. In humans they treat urinary infections, ear infections, and others.