• strains
  • MATERIALS AND METHODS--Four thousand and eighty-six strains of Neisseria gonorrhoeae isolated, of which 432 were PPNG, were examined for susceptibilities to penicillin and tetracycline by an agar dilution method using the breakpoint minimum inhibitory concentrations (MICs) of 1 and 10 mg/1 respectively. (bmj.com)
  • follow
  • Chapter 4, section 4.4 of this guidance describes actions API manufacturers, including those who manufacture or package APIs or penicillin intermediates, are to follow to ensure such material is contained and does not contaminate other drugs. (pharmacistspharmajournal.org)