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Flecainide

Flecainide Dosage

Robert Chad Hakim, PharmD, BCCCPDaisy Chau, PharmD
Reviewed by Robert Chad Hakim, PharmD, BCCCP, Daisy Chau, PharmD
Last reviewed on November 18, 2025

The average cost for 60 tablets of 50mg of Flecainide is $19.84 with a free GoodRx coupon. This is 75.67% off the average retail price of $81.54.

tabletTablet

Dosage

Quantity

Price as low as

Price per unit

100mg

180 tablets

$49.53

$0.28

50mg

60 tablets

$19.84

$0.33

150mg

180 tablets

$59.01

$0.33

Typical dosage for Flecainide

  • Adults:

    • PSVT and PAF: The typical starting dose is 50 mg by mouth two times a day. The maximum recommended dose is 300 mg per day.
    • Ventricular arrhythmia: The typical starting dose is 100 mg by mouth two times a day. The maximum recommended dose is 400 mg per day.
  • Children: The dose is calculated based on your child's body surface area (BSA). The dose is typically split into smaller doses two or three times a day. The maximum dose is 200 mg/m² per day.

    • Under 6 months of age: The typical starting dose is 50 mg/m² by mouth a day.
    • 6 months of age and older: The typical dose is 100 mg/m² per day.

Your dose might differ if you have kidney problems or if you're taking amiodarone.

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