It is an antibiotic. One example is treating bladder infections (from recovery of stone removal, or other injury).
it's used in the animals body and the medicine we use in them, also the reactions thet the two things do.
Calculating dosage rates for drugs, drip rates for intravenous fluids and also adding up owners bills! ;) We use it alot.
using microscopes to look at things and measuring medicine and reading the different instruments that vets use
Polyflex is a brand name for an injectable antibiotic (ampicillin).