[<20]: 100-200mg q24h (one-half of usual dose q24h.)
Hemodialysis: Manufacturer states: For CRCL <20 ml/min give 50% of usual dose q24h. No specific info for hemodialysis.
Continuous arteriovenous or venovenous hemodiafiltration effects: Administer 300 mg every 24 hours
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