# A Tricky Medication Calculation Problem

## The Relationship Between Lanoxin and Digoxin Elixir

First of all, let's understand the details provided in the question. Lanoxin elixir is prescribed as 125 mcg (micrograms) daily, while digoxin elixir has a concentration of 0.05mg per milliliter. To find the number of milliliters needed for a one-month supply, we need to do some calculations.

## Finding the Solution

To convert micrograms (mcg) to milligrams (mg), we know that 1 microgram is equal to 0.001 milligram. Therefore, 125 mcg is equivalent to 0.125 mg. Knowing this, we can find the number of milliliters needed for one day, which is calculated to be 2.5 ml.

Assuming a 30-day period for a month, the total amount needed for the supply would be 75 ml. This calculation is done by multiplying the daily amount by the number of days in a month. Hence, the correct answer to the question is **75ml (B).**

## About Lanoxin

Lanoxin contains the active substance digoxin, which belongs to a group of medicines called cardiac glycosides. It is commonly used to treat arrhythmias and heart failure, which are conditions related to irregular heartbeats and inefficient heart function.

A physician orders Lanoxin elixir 125 mcg daily for a child. The medication available is digoxin elixir 0.05mg/ml. How many milliliters are needed for a one-month supply? A. 60ml B. 75ml C. 30ml D. 45ml

The correct answer is: 75ml (B). Explanation: The calculation involves converting micrograms to milligrams and determining the total milliliters needed for a month's supply based on the daily dosage.