HORSE AMPICILLIN (PO) RESOURCES Winther, L., Baptiste, K. E., & Friis, C. (2012). Pharmacokinetics in pulmonary epithelial lining fluid and plasma of ampicillin and pivampicillin administered to horses. Research in Veterinary Science, 92(1), 111–115. https://doi.org/10.1016/j.rvsc.2010.11.001