Rifabutin: a review with emphasis on its role in the prevention of disseminated Mycobacterium avium complex infection.
Ann Pharmacother
; 28(11): 1250-4, 1994 Nov.
Article
em En
| MEDLINE
| ID: mdl-7849340
ABSTRACT
OBJECTIVE:
To discuss the mechanism of action, in vitro and in vivo activity, pharmacokinetics, clinical trials, adverse effects, drug interactions, and dosage guidelines of rifabutin. DATA SOURCES Pertinent literature published between 1982 and 1993 was identified via a MEDLINE search. Published proceedings of selected conferences were also reviewed. STUDY SELECTION Selected basic science, microbiologic, and pharmacokinetic articles were evaluated. Because only limited data regarding rifabutin were available in the literature, all clinical trials involving the use of rifabutin in the prevention of Mycobacterium avium complex (MAC) infection in AIDS patients were reviewed. DATASYNTHESIS:
Rifabutin is a rifamycin derivative that was approved recently for the prevention of disseminated MAC disease in patients with advanced HIV infection. The drug has in vitro and in vivo activity against gram-positive bacteria, gram-negative bacteria, and mycobacteria. Two prospective, randomized, double-blind, placebo-controlled, multicenter trials demonstrated that rifabutin decreased the progression to MAC bacteremia in AIDS patients by about 50 percent. Adverse effects that resulted in the discontinuation of rifabutin prophylaxis occurred in 16 percent of patients. Rifabutin induces hepatic enzymes to a lesser extent than does rifampin, but dosage adjustment of drugs that are known to interact with rifampin may be required.CONCLUSIONS:
Rifabutin is the only drug shown to be effective in the prevention of MAC bacteremia in AIDS patients; therefore, it should be made available as a formulary agent. It may be reasonable to delay initiation of rifabutin prophylaxis until CD4 lymphocyte counts are less than 75-50/mm3.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Infecção por Mycobacterium avium-intracellulare
/
Bacteriemia
/
Rifabutina
Tipo de estudo:
Clinical_trials
/
Etiology_studies
/
Guideline
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Ann Pharmacother
Assunto da revista:
FARMACOLOGIA
/
TERAPIA POR MEDICAMENTOS
Ano de publicação:
1994
Tipo de documento:
Article