Dilution question

by julie

How much doxepin 10 mg/ML concentrate should you dilute to prepare 240 ML of doxepin 25 mg/5mL?

Comments for Dilution question

Click here to add your comments

Doxepin question
by: Brad Wojcik, Pharm D

There are a couple of ways to do this. Personally, I think the easiest way is to ask yourself how many mg of doxepin are needed in the final 240 mL solution. 240 mL (25 mg/5 mL) = 1200 mg. Now you can look at where you will get your mg of doxepin and calculate how many mL you need. 1200 mg(1 mL/10 mg) = 120 mL. You can also use V1C1=V2C2

240 mL(25 mg/5 mL) = V2 (10 mg/1 mL)
V2= 240 mL(25 mg/ 5 mL)(1 mL/10 mg)
V2 = 120 mL

Click here to add your comments

Join in and ASK your Questions! It's easy to do. How? Simply click here to return to Math questions.

Popular Pages

More Info