Robuta

https://pubmed.ncbi.nlm.nih.gov/17348901/ Intracellular killing of mastitis pathogens by penethamate hydriodide following internalization... Penethamate hydriodide was highly effective in killing Streptococcus uberis, Streptococcus dysgalactiae subsp. dysgalactiae and Staphylococcus aureus that... intracellularkillingmastitispathogensfollowing