16. Which of the following drugs is used to treat HIV/AIDS?
a) Acyclovir
b) Lamivudine
c) Ciprofloxacin
d) Fluconazole
Answer: b) Lamivudine
17. Who discovered the antibiotic streptomycin?
a) Alexander Fleming
b) Louis Pasteur
c) Selman Waksman
d) Paul Ehrlich
Answer: c) Selman Waksman
18. Which of the following drugs is used to treat asthma?
a) Albuterol
b) Warfarin
c) Glipizide
d) Enalapril
Answer: a) Albuterol
19. Who discovered the anti-tuberculosis drug isoniazid?
a) Alexander Fleming
b) Louis Pasteur
c) Robert Koch
d) Selman Waksman
Answer: d) Selman Waksman
20. Which of the following drugs is used to treat diabetes?
a) Metformin
b) Lisinopril
c) Atorvastatin
d) Amoxicillin
Answer: a) Metformin