Abstract:
:The pharmacokinetics of chloramphenicol following intravenous and oral administration were studied in 14 infants with Haemophilus influenzae meningitis. Following five days of treatment with intravenous chloramphenicol (100 mg/kg/day every six hours), oral chloramphenicol was substituted at the same dose. Multiple serum levels of chloramphenicol were determined after an intravenous dose on day 4 and after an oral dose on day 10. CSF levels were measured six hours after intravenous or oral chloramphenicol dose on those days (CSF trough). Following intravenous administration, the mean peak serum level of 15.0 micrograms/ml was reached at 45 minutes. In comparison, after oral chloramphenicol in the same dosage, the mean peak serum level of 18.5 micrograms/ml was achieved at two to three hours. The mean serum half-life of the drug (6.5 hours) was significantly longer after oral administration than after intravenous chloramphenicol (4.0 hours) (P less than .001). The increased serum half-life following orally administered chloramphenicol was occasionally associated with drug accumulation. In addition, mean trough CSF levels were somewhat higher when the patient received oral medication (6.6 micrograms/ml) compared to intravenous administration (4.2 micrograms/ml) (P less than .001). For any treatment regimen for H influenzae meningitis that includes a period of oral chloramphenicol therapy the patient should be hospitalized to ensure compliance. Because of the wide range of individual variation in serum half-life that may result in accumulation, periodic monitoring of serum chloramphenicol levels is also recommended.
journal_name
Pediatricsjournal_title
Pediatricsauthors
Yogev R,Kolling WM,Williams Tsubject
Has Abstractpub_date
1981-05-01 00:00:00pages
656-60issue
5eissn
0031-4005issn
1098-4275journal_volume
67pub_type
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