Diltiazem- converting from drip (gtt) to PO dose

Take the most recent diltiazem drip rate, multiply it by 3, then add 3, then multiply that by 10. That equals the total daily dose so divide by 4 to get the q 6 hrs oral dose. In equation form:

(diltiazem IV gtt rate x 3 + 3 ) x 10 = total daily po dose, divide by 4 for q 6 hr PO dose