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Chloramphenicol pharmacokinetics in Ethiopian children of differing nutritional status
Insights
This study on chloramphenicol in Ethiopian children found that intravenous dosing maintained therapeutic levels in children with kwashiorkor, but oral absorption was erratic in malnourished patients.
Area of Science:
- Pharmacology
- Pediatrics
- Nutritional Science
Background:
- Malnutrition, particularly kwashiorkor, significantly impacts drug pharmacokinetics in children.
- Understanding chloramphenicol's behavior in different nutritional states is crucial for effective treatment.
Purpose of the Study:
- To investigate the pharmacokinetics of intravenous chloramphenicol succinate and oral chloramphenicol palmitate in Ethiopian children.
- To compare drug disposition between children with kwashiorkor and those of normal nutritional status.
Main Methods:
- Pharmacokinetic analysis of intravenous chloramphenicol succinate and oral chloramphenicol palmitate.
- Study population included Ethiopian children with varying nutritional states, including kwashiorkor.
Main Results:
- Children with kwashiorkor exhibited significantly lower plasma clearance (4.16 ml/min/kg) and prolonged half-life (3.76 h) of chloramphenicol compared to normal-weight children.
- Intravenous chloramphenicol dosing achieved therapeutic plasma concentrations in kwashiorkor patients despite altered pharmacokinetics.
- Oral chloramphenicol palmitate absorption was erratic in severely malnourished children.
Conclusions:
- Intravenous chloramphenicol succinate is suitable for treating infections in children with kwashiorkor, achieving therapeutic levels with standard doses.
- Oral chloramphenicol palmitate administration should be avoided in severely malnourished children due to unpredictable absorption.
Abstract:
The pharmacokinetics of i.v. chloramphenicol succinate and oral chloramphenicol palmitate were studied in Ethiopian children with different nutritional states. In children with kwashiorkor the plasma clearance of chloramphenicol was significantly lower than in children of normal weight (4.16 ml/min/kg versus 7.53 ml/min/kg). In consequence the mean half-life was prolonged (3.76 h versus 2.85 h) and this led to somewhat higher plasma levels in the kwashiorkor children. The influence of the pathophysiological changes offset one another so that plasma concentrations within the therapeutic range were obtained in children with kwashiorkor given recommended standard i.v. doses. The absorption of chloramphenicol after oral administration in severely malnourished children was erratic, which suggests that this route should be avoided in such patients.