Question

Your patient has difficulty swallowing tablets. So you find amoxicillin elixir 125mg in 5mls. The prescription is for 0.5g. How many ml do you give? some one explained to me and i didn't understand ,with the formula please

Answer 1

To administer a 0.5g dose of amoxicillin using an elixir that has 125mg in 5ml, divide the required dose in mg (500mg) by the concentration (125mg/5ml) and multiply the result by 5ml to get the volume. The calculation shows that 20ml of the elixir should be administered.

Step-by-step explanation:

To calculate the correct dosage of the amoxicillin elixir for the patient, we need to use the information provided: The elixir has a concentration of 125mg in 5ml. The prescription calls for 0.5g, which is equivalent to 500mg since there are 1000 milligrams in a gram. The calculation that needs to be done is to find out how many milliliters of the elixir will provide the required 500mg of amoxicillin.

The formula to use in this case is:

Dosage required (mg) / Concentration of medication (mg/ml) = Volume to administer (ml)

In this case, it would look like this:

500mg / (125mg/5ml) = Volume to administer

To solve for the volume to administer, you first divide 500mg by 125mg, which equals 4. Then, since the concentration is per 5ml, you multiply 4 by 5ml, giving you:

4 * 5ml = 20ml

Therefore, you would administer 20ml of the amoxicillin elixir.