The plasma peak, trough, and peak-trough concentrations of netilmicin given to preterm and term infants were measured after different regimens to determine which dosage would provide satisfactory peak and trough concentrations. In infants aged less than 7 days, dosage regimens of 3.0 or 2.5 mg/kg every 12 hours gave satisfactory peak levels (range 5.2-12.0 micrograms/ml) but troughs were above ...

OPT 6 is an optimisation programme through which optimisation of various drugs like phenytoin can be done. It is based on Bayesian Statistical Theory and Maximum Likelihood Estimation. This study was aimed to determine the steady state concentration equivalence using the Optimisation programme OPT 6 to compare 300mg once daily phenytoin and 100mg tid phenytoin. Epileptic outpatients attending n...

OBJECTIVE To compare five published nomograms (Thomson guidelines, Mawer nomogram, rule of eights, Hull-Sarubbi table and Dettli method) for calculating the initial gentamicin dosage regimen in a Kuwaiti population. MATERIALS AND METHODS Based on measured peak and trough gentamicin concentrations, the elimination rate constant and volume of distribution of gentamicin were calculated for each ...

Background: Mostly seen toxicities following vancomycin are ototoxicity and nephrotoxicity. We here report a very low birth weight preterm neonate who developed severe episodes of apnea after accidental iatrogenic vancomycin overdose, responsive to treatment with double volume exchange transfusion. Case report: A preterm neonate weighing 1380 grams received two doses of 10-fold of the normal do...

BACKGROUND Voriconazole is a first-line agent for the treatment of invasive pulmonary aspergillosis (IPA). There are increasing reports of Aspergillus fumigatus isolates with reduced susceptibility to voriconazole. METHODS An in vitro dynamic model of IPA was developed that enabled simulation of human-like voriconazole pharmacokinetics. Galactomannan was used as a biomarker. The pharmacodynam...

BACKGROUND Ganciclovir is a therapeutic choice for extremely premature infants with severe postnatal cytomegalovirus disease, but little is known about its optimal dose size and dosing interval for them. CASE PRESENTATION We treated an extremely premature female infant with postnatal cytomegalovirus infection with intravenous administration of ganciclovir since 49 days of life (postmenstrual ...

BACKGROUND Once-daily extended-release (XR) antiepileptic drugs (AEDs) offer potential adherence and tolerability advantages over their BID immediate-release (IR) counterparts. However, patients with epilepsy will inevitably be at least occasionally nonadherent with a prescribed dosing regimen, regardless of formulation. Although perturbations in plasma concentrations due to dosing irregulariti...

PURPOSE The present study was aimed at investigating L-asparaginase (L-ASE) activity (in plasma) and L-asparagine (L-ASN) depletion (in plasma and CSF) in children with newly diagnosed acute lymphoblastic leukemia (ALL) exposed for the first time to different L-ASE products. PATIENTS AND METHODS During the induction treatment of the AIEOP ALL 95 study, 62 patients were treated with either Erw...

Linezolid has proven valuable in musculoskeletal infections, however, failure and resistance have been described and toxicity is worrisome when more than 28 days are necessary. We describe the first 5 cases in whom linezolid trough serum concentrations were weekly measured and its relationship with clinical outcome and toxicity.

Limited data on the pharmacokinetics and pharmacodynamics (PK/PD) of unboosted atazanavir (uATV) in treatment-experienced patients are available. The aim of this work was to study the PK/PD of unboosted atazanavir in a cohort of HIV-infected patients. Data were available for 58 HIV-infected patients (69 uATV-based regimens). Atazanavir concentrations were analyzed by using a population approach...