European journal of clinical pharmacology
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Eur. J. Clin. Pharmacol. · Jul 2013
Clinical TrialPharmacokinetics of colistin in critically ill patients with multidrug-resistant Gram-negative bacilli infection.
Colistin, which had not been used widely because of nephrotoxicity and neurotoxicity, has gained clinical importance in recent times due to the resurgence of multidrug-resistant Gram-negative bacilli. Very few studies, especially pharmacokinetic studies, have been performed with intravenous colistimethate sodium, and none in India. The aim of our study was to study the single-dose and steady-state pharmacokinetics of colistin in patients with multidrug-resistant Gram-negative bacilli infections. ⋯ The pharmacokinetic parameters of colistin were comparable to those reported in previous studies in critically ill patients. However, the recommended dose may be inadequate to maintain the C(max)/MIC ratio to an optimal level-at least in patients infected with Pseudomonas spp. The dose recommendation should be based only on creatinine clearance and not body weight.
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Eur. J. Clin. Pharmacol. · Jun 2013
Randomized Controlled TrialRifampicin markedly decreases the exposure to oral and intravenous tramadol.
Tramadol is mainly metabolized by the cytochrome P450 (CYP) 2D6, CYP2B6 and CYP3A4 enzymes. The aim of this study was to evaluate the effect of enzyme induction with rifampicin on the pharmacokinetics and pharmacodynamics of oral and intravenous tramadol. ⋯ Rifampicin markedly decreased the exposure to tramadol and M1 after both oral and intravenous administration. Therefore, rifampicin and other potent enzyme inducers may have a clinically important interaction with tramadol regardless of the route of its administration.
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Eur. J. Clin. Pharmacol. · Jun 2013
Pregabalin abuse and dependence in Germany: results from a database query.
Pregabalin (PRG) is approved for the treatment of neuropathic pain, partial seizures and generalised anxiety disorder in many countries and currently under study for other indications. Supported by case reports and the results of a limited number of studies there is an ongoing debate on the potential of PRG to cause addictive behaviours. However, currently available evidence on this issue is sparse, and any definitive assessment of PRG's potential for abuse and dependence is not yet in sight. The aim of our study was to identify the number of cases of PRG abuse or dependence reported to the database of a German medical regulatory body and to obtain insights into further usage-specific parameters. ⋯ Cases of PRG abuse or dependence have been reported to the BfArM since 2008, with a marked increase of such reports in subsequent years. Male sex and a history of polytoxicomania may be possible risk factors for the development of addictive behaviours related to PRG.
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Eur. J. Clin. Pharmacol. · May 2013
Randomized Controlled Trial Multicenter StudyNAT2 genotype guided regimen reduces isoniazid-induced liver injury and early treatment failure in the 6-month four-drug standard treatment of tuberculosis: a randomized controlled trial for pharmacogenetics-based therapy.
This study is a pharmacogenetic clinical trial designed to clarify whether the N-acetyltransferase 2 gene (NAT2) genotype-guided dosing of isoniazid improves the tolerability and efficacy of the 6-month four-drug standard regimen for newly diagnosed pulmonary tuberculosis. ⋯ Our results clearly indicate a great potential of the NAT2 genotype-guided dosing stratification of isoniazid in chemotherapy for tuberculosis.