The rate of bactericidal action of penicillin in vitro as a function of its concentration, and its paradoxically reduced activity at high concentrations against certain organisms.
D000900:Anti-Bacterial Agents; D066298:In Vitro Techniques; D010406:Penicillins / Q000494:pharmacology*; D013211:Staphylococcus aureus; D013290:Streptococcal Infections; D013292:Streptococcus agalactiae; D013296:Streptococcus pneumoniae
PENICILLIN/effects