It depends for what?: Start 50 to 100 mg every twelve hours , and titrate up , max 300 to 400 mg per day, depending on which arrhythmia is being treated. Ask the prescribing doctor.
Answered 11/20/2013
6.2k views
199 to 200: It could be 100 to 200 mg.
Answered 11/24/2012
5.5k views
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