[Comparison of three antituberculous drugs in serum and cold abscesses of patients with spinal tuberculosis].
OBJECTIVE
Pharmacokinetics of INH, RFP and OFLX in serum and cold abscesses of patients with spinal tuberculosis was analyzed to provide reference to choosing clinical therapeutic regimen.


METHODS
The aspiration specimens of abscesses and venous blood were collected from 8 patients with spinal tuberculosis at 0.5, 0.75, 1.0, 1.5, 2.0, 4.0, 6.0, 9.0, 12.0, 16.0 and 24.0 h after administration of antituberculous drugs. The specimens were assessed by high performance liquid chromatography (HPLC). The data were processed with software 3P87.


RESULTS
The Cmax of INH, RFP and OFLX in serum were 10.87 +/- 7.09 micrograms/ml, 9.98 +/- 3.53 micrograms/ml, and 5.29 +/- 0.72 micrograms/ml, while the Cmax of INH, RFP and OFLX in cold abscesses were 2.84 +/- 1.63 micrograms/ml, 0.57 +/- 0.26 microgram/ml and 3.19 +/- 1.29 micrograms/ml respectively.


CONCLUSIONS
After administration, the Cmax of INH and OFLX in the cold abscesses of patients with spinal tuberculosis, reached the level beyond their MIC and appeared and disappeared more slowly than that in the serum; RFP was not easy to permeate into the cold abscesses, the Cmax of RFP in the cold abscesses just reached its MIC.
Wu
Q
Q
Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149.
Duan
L
L
Lin
Y
Y
D000038:Abscess / Q000378:metabolism; D000328:Adult; D000890:Anti-Infective Agents / Q000493:pharmacokinetics; D000995:Antitubercular Agents / Q000493:pharmacokinetics*; D005260:Female; D006801:Humans; D007538:Isoniazid / Q000493:pharmacokinetics*; D008297:Male; D015242:Ofloxacin / Q000493:pharmacokinetics*; D012293:Rifampin / Q000493:pharmacokinetics; D014399:Tuberculosis, Spinal / Q000378:metabolism*
D000890:Anti-Infective Agents; D000995:Antitubercular Agents; D015242:Ofloxacin; D007538:Isoniazid; D012293:Rifampin