The following results were obtained in clinical use of josamycin-tartrate in 9 cases of thoracotomy.
1. Antibacterial efficacy
(1) In 5 cases, josamycin-tartrate 400 mg in 5% G/W 500 ml was given intravenously for 6 hours on 1st day postoperatively, and 8 hours later the serum level of the drug was proved to be effective level.
(2) In 5 cases, josamycin-tartrate 400 mg in 40 ml N-saline was given for 3 minutes intravenously during lobectomy, and one hour later the lung tissue level and the serum level of the drug were measured. The lung tissue level of it was 5 to 10 times higher than that of serum level.
2. Side effects
(1) Blood pressure dropped temporarily in one shot intravenous administration, but was constant in slow drip infusion. The drug had little influence on other vital signs.
(2) No liver and kidney function disturbance was noticed in some cases josamycin-tartrate 800 mg in 5% G/W 500 ml was given intravenously daily for 7 days.
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