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Biomedical subjects

H Walther

Publications and source records attributed to H Walther.

297 records · Page 17Linked to original sources
PubMedDate not supplied

Influence of milk on the bioavailability of doxycycline--new aspects.

This study was conducted to examine the pharmacokinetics of doxycycline in nine healthy volunteers who had fasted overnight. Single-dose cross-over design was used. Each subject received orally 0.2 g doxycycline. The subjects swallowed the antibiotic capsules with 300 ml of water or 300 ml of fresh milk. Simultaneous ingestion of milk diminished the peak plasma concentration by 24% and the absorption by 9-53% (mean 30%). It is concluded that, like the other tetracyclines, doxycycline should not be administered together with milk.

Absorption↗
PubMedDate not supplied

[Quantitative chloramphenicol detection in serum and cerebrospinal fluid of infants with bacterial meningitis].

Twenty-six meningitic infants aged less than one year were administered daily oral or intravenous doses from 44 to 170 mg chloramphenicol per kg body weight. Serum levels measured were 5.4 to 55.0 micrograms.ml-1, and CSF concentrations from 0.9 to 20.2 micrograms.ml-1 were noted. Since, in particular for younger infants, (i) there is no clear relationship between dose and blood level and (ii) one cannot unambiguously infer the CSF concentration from the blood level we recommend that initial doses for meningitic infants be chosen according to age-adjusted dosage instructions and, from day 2 onwards, doses be corrected as a function of CSF and blood levels (CSF greater than 10 micrograms.ml-1 and serum less than 50 micrograms.ml-1).

Bacterial Infections↗