betawinCardiac arrhythmias: Betawin 50 mg (one Betawin-50 tablet) b.i.d or t.i.d should usually control the condition. It necessary the dose can be increased up to 300 mg per day in divided doses. Following the treatment of an acute arrhythmia with Betawin injection, continuationtherapy with Betawin tablets should be initiated 4-6 hours later. TheBetawin is a prescription medicine that is available as a Tablet. Primarily, it is used for the treatment of Allergy, Asthma, Cancer: causes, symptoms