Table 3-4. Properties of antiarrhythmic drugs with multiple channel blocking or other prop

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Table 3-4. Properties of antiarrhythmic drugs with multiple channel blocking or other properties. Presc Cat contains the controlled drug and FDA pregnancy safety prescribing category codes Calculate dose for over/underweight patients: _________________________________________________________________________ Drug Recommended Half- Plasma level (Available Dose life Thera- Toxic Presc as) (mg) peutic Route Cat Notes ________________________________________(mg/L)___________________________ Amiodarone 6-107 days 1-2 >2.5 Rx;C (Cordarone: 200 mg tabs) Give Loading: 800-1200 QD Oral for 1-3 wk Maintenance: 200-600 QD Oral Digoxin 35-40 0.5-2 >2.5 ug/mL (generic, Lanoxin; see Table 4-1) Loading: 0.4-0.6 q12-24h Oral/IV Give 1-3 times if required. Maintenance: 0.1-0.25 QD Oral (PgDn to scroll) 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴 Drug Dose t Rx-Level-Tx Route Notes 컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴컴 Phenytoin 22-36h 10-20 >20 Unlabeled use (generic, Dilantin, see Table 16-2) Note 1 0.5mg/Kg q1-2h IV no faster than 50mg/min ========================================================================== Footnotes: 1. For digitalis arrhythmias unresponsive to potassium or lidocaine. (Home key to return to top of table)

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