The recommended dose of nitric oxide (NO) is
a. 20 ppm.
b. 30 ppm.
c. 40 ppm.
d. 60 ppm.
Question 2
___________ is not used pharmacologically to treat smoking addiction.
a. Nicotine replacement patch
b. Varenicline (Chantix)
c. Bupropion (Zyban)
d. Prolastin