<unk>  is an antibiotic that is FDA approved for the treatment of infections due to Escherichia coli, Proteus mirabilis, Morganella morganii (formerly Proteus morganii), Providencia rettgeri (formerly Proteus rettgeri), Proteus vulgaris, Pseudomonas, Enterobacter, Enterococci.   Common adverse reactions include nausea, bad taste, diarrhea, vomiting, flatulence,  glossitis, abdominal cramps, dry mouth, furry tongue, rectal bleeding, anorexia, hypersensitivity, anemia, thrombocytopenia, leukopenia, neutropenia, and eosinophilia.
Carbenicillin
Penicillin
Piperacillin
Oxacillin
Hetacillin
Methicillin
Ampicillin 
Tetracycline 