The possible existence of kinetic interactions between rifampicin and isoniazid and the effect of the concomitant presence of an impaired liver function were investigated in man. In a first study normal healthy subjects and patients with chronic liver disease received, on three different occasions, a single dose of 600 mg rifampicin or isoniazid and of rifampicin and isoniazid associated in ran...

The Treatment Committee of the Japanese Society for Tuberculosis published statements on the “Standards for tuberculosis care” in April 2008. Therein we referred to rifampicin as follows; “Use of rifampicin requires attention because of the interactions with a number of other drugs. Particularly for HIV-infected patients who need antiviral drugs, the replacement of rifampicin by rifabutin shoul...

Frequencies at which mutants resistant to fusidic acid and/or rifampicin arose in vitro were determined in Staphylococcus aureus strains including methicillin-susceptible S. aureus (MSSA), methicillin-resistant S. aureus (MRSA), vancomycin-intermediate resistant S. aureus (VISA) and hetero-VISA. The concentrations of fusidic acid (30 and 15 mg/L) and rifampicin (16 and 1 mg/L) used for selectio...

Antibiotic resistance in Helicobacter pylori has been a growing problem with current treatment regimens. However, second-line therapy for cases with eradication failure remains to be established. The aim of this study was to evaluate (in vitro) the potential use of rifampicin for H. pylori eradication. The susceptibility of 52 H. pylori strains isolated from children and adults to amoxicillin, ...

Oral delivery of rifampicin through chitosan nanoparticles.

OBJECTIVE To evaluate the pharmacokinetic interactions between efavirenz and rifampicin (rifampin) in patients with HIV infection and tuberculosis. DESIGN Nonblind, randomised, pharmacokinetic study. PATIENTS 24 patients (21 male, 3 female; mean age 37 years) with HIV infection and tuberculosis. INTERVENTIONS Patients were randomised to one of the following treatments: group A (n = 16) re...

OBJECTIVES Rifampicin is known to be deacetylated in vivo, resulting in its metabolite 25-desacetyl rifampicin, but the enzyme metabolizing rifampicin and the association of this process with any genetic variation have not yet been elucidated. In this study, genetic variations of a surrogate enzyme, carboxylesterase 2 (CES2), and their association with the metabolism of this drug, were investig...

Buprenorphine is mainly metabolized by the cytochrome P450 (CYP) 3A4 enzyme. The aim of this study was to evaluate the role of first-pass metabolism in the interaction of rifampicin and analgesic doses of buprenorphine. A four-session paired cross-over study design was used. Twelve subjects ingested either 600 mg oral rifampicin or placebo once daily in a randomized order for 7 days. In the fir...