Capreomycin sulfate clinical pharmacology
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Chetan Lokhande, M.B.B.S [2]
Clinical Pharmacology
Human Pharmacology
Capreomycin is not absorbed in significant quantities from the gastrointestinal tract and must be administered parenterally. In 2 studies of 10 patients each, peak serum concentrations following 1 g of capreomycin given intramuscularly were achieved 1 to 2 hours after administration, and average peak levels reached were 28 and 32 μg/mL respectively (range, 20 to 47 μg/mL). Low serum concentrations were present at 24 hours. However, 1 g of capreomycin daily for 30 days or more produced no significant accumulation in subjects with normal renal function. Two patients with marked reduction of renal function had high serum concentrations 24 hours after administration of the drug. When a 1-g dose of capreomycin was given intramuscularly to normal volunteers, 52% was excreted in the urine within 12 hours.
Lehmann, et al, examined the pharmacokinetics of single dose capreomycin (1.0 g) administered intramuscularly and by intravenous infusion (1 hour) in 6 healthy volunteers. The area under the serum concentration versus time curve was similar for the two routes of administration. Capreomycin peak concentrations after intravenous infusion were 30 ± 47% higher than after intramuscular administration.1, 2
Paper chromatographic studies indicated that capreomycin is excreted essentially unaltered. Urine concentrations averaged 1.68 mg/mL (average urine volume, 228 mL) during the 6 hours following a 1-g dose.[1]
References
- ↑ "CAPASTAT SULFATE (CAPREOMYCIN) INJECTION, POWDER, FOR SOLUTION [AKORN]". Text " accessdate " ignored (help)
Adapted from the FDA Package Insert.