TABLE 1.

Drug stability study of BACTECa

LVX concn (μg/ml)TreatmentReading no.
12345Avg
2.0Fresh394443414442.2
4°C414145354641.6
37°C403742404140.0
1.0Fresh9081757810385.4
4°C706186709476.2
37°C1316346575871.0
  • a Results of the drug stability studies in the BACTEC system for LVX at two concentrations in freshly prepared drug-containing medium, medium stored at 4°C for 14 days, and medium stored at 37°C for 14 days inoculated with M. tuberculosis strain H37Rv. GI readings in units at the time the drug-free control reached a GI of ≥30 (5 days) for the various treatments are shown.