title: Inhibition of R-factor transfer by levallorphan.
mesh_terms: D002470:Cell Survival; D002701:Chloramphenicol / Q000494:pharmacology; D003227:Conjugation, Genetic / Q000187:drug effects*; D004926:Escherichia coli / Q000187:drug effects*; D005111:Extrachromosomal Inheritance; D007612:Kanamycin / Q000494:pharmacology; D007700:Kinetics; D007977:Levallorphan / Q000494:pharmacology*; D009355:Neomycin / Q000494:pharmacology; D010403:Penicillin Resistance; D010406:Penicillins / Q000494:pharmacology; D011511:Proteus / Q000187:drug effects*
chemical_list: D010406:Penicillins; D007977:Levallorphan; D007612:Kanamycin; D002701:Chloramphenicol; D009355:Neomycin