Saturday, May 8, 2021

Direct oral anticoagulants (DOACs) dosing for stroke prevention in atrial fibrillation mnemonic

Hi everyone!

Here are some DOAC dosing mnemonics for atrial fibrillation! 

RivarOxaban: Once daily
Apixaban: Twice daily 
Dabigatran: Twice daily
EdOxaban: Once daily

Mnemonic: Drugs with O have Once-daily dosing. 

Rivaroxaban: 20 mg once daily with the evening meal (creatinine clearance [CrCl] >50 mL/minute); or 15 mg once daily with the evening meal (CrCl ≤50 mL/minute).
Mnemonic: R without the straight line | looks like 2 to me for 20 mg!

Apixaban: 5 mg twice daily (CrCl >50 mL/minute); or 2.5 mg twice daily for those with any two of the following: age ≥80 years, body weight ≤60 kg, or serum creatinine ≥1.5 mg/dL.
Mnemonic: Apixa has 5 letters for 5 mg!

Dabigatran: 110 mg BID or 150 mg BID (CrCl >30 mL/minute).
European labeling suggests dose reduction in patients older than 75 years (eg, 150 mg orally once per day or 110 mg orally twice per day).

Edoxaban: 30 mg (weight ≤60 kg) or 60 mg (weight >60 kg) orally once daily.

That's all!

Remember that the dosing varies for VTE treatment and prophylaxis so do not apply these mnemonics for VTE.


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