A pharmacist is asked to compound a 200 mL mixture containing maldroxyl 50 mL, diphenydramine elixir 50 mL, and viscous lidocaine 2%.

Question

How much viscous lidocaine 2% is needed to prepare the order?

Answer 1

200 ml x 2% lidocaine = 4 mls of lidocaine (not 4 mls of 2% lidocaine, however).