The following categories of medication can be used for preventive therapy

What is meant by “PRN dosing?”
a. medication is given as needed
b. medication is given at certain times daily
c. medication is given by IV bolus
d. medication is given for sleep
Which of the following is not a side effect of muscle relaxants?
a. slurred speech
b. urinary retention
c. ringing in the ears
d. confusion
Which of the following categories of medication can be used for preventive therapy for
migraine headaches?
a. beta blockers
b. COX-2 inhibitors
c. anti-emetics
d. proton-pump inhibitors