Answer: The answer to your question is 0.5 or ½ tablet.
Explanation: We have that the physician has order 0.125 mg of lanoxin. and you have 0.25 mg of lanoxin so we would have to divide 0.125 mg and 0.25 mg (0.125 mg ÷ 0.25 mg) which would equal 0.5 or ½ tablet.
what is lanoxin? Lanoxin is used in the treatment of chronic heart failure and/or atrial fibrillation and flutter (irregular heart rhythms caused by an electrical problem in the upper chambers of the heart).