Kloxerate Plus Milking Cow Presentation Kloxerate Plus Milking Cow is an off-white stable intramammary suspension prepared under sterile conditions. Each single dose 5 g syringe contains: Ampicillin, as sodium salt 75 mg Cloxacillin, as sodium salt 200 mg Cloxacillin sodium and Ampicillin sodium are semi-synthetic penicillins derived from 6-aminopenicillanic acid.