Lidocaine, a Common Injectable Dental Anesthetic, Is Available as a 1

Multiple Choice

Lidocaine, a common injectable dental anesthetic, is available as a 1% lidocaine-HCl solution, as shown on the following drug label. What is the purpose of HCl in the injection solution?

A) It makes lidocaine easier to store.
B) It makes lidocaine more reactive.
C) It makes lidocaine more soluble.
D) It is the active ingredient of the medicine.
E) It is a preservative.