[The pharmacokinetics of 1,000 mg erythromycin lactobionate i. v. in patients with respiratory tract infections (author's transl)].

Pharmacokinetic data were determined in 16 patients with respiratory tract infections who had received 1,000 mg erythromycin lactobionate i. v. The infusion lasted 60 or 30 minutes. The peak concentrations were 33.3 mg/l (60 min group) and 34.4 mg/l (30 min group). The elimination half-lives were 2.0 h and 1.9 h. The concentrations are considerably higher than those found following the peroral administration of erythromycin. We did not find a cumulative effect after four administrations at 12-hour intervals. The clinical efficacy was good.