PMID: 11322259Jan 1, 1996Paper

Intravenous ribavirin by constant infusion for serious influenza and parainfluenzavirus infection

Antiviral Therapy
Frederick G HaydenJ Lane

Abstract

Three patients with severe lower respiratory tract influenza or parainfluenzavirus infections were treated with continuous ribavirin infusion, given as a 5 mg/kg/hour (h) loading infusion for 8 h followed by 1.5 mg/kg/h for 2 to 6 days. This regimen was generally well tolerated. Plasma ribavirin concentrations were 40 to 60 microM in two patients during the continuous infusion phase and lower concentrations were detectable in tracheobronchial secretions. In temporal association with ribavirin administration, viral shedding diminished in one patient and ceased in two patients, one of whom had developed virus resistant to amantadine. The strategy of continuous ribavirin infusion warrants controlled testing for its antiviral and possible clinical effectiveness.

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