51. Who discovered the first synthetic antibiotic, Prontosil?
a) Gerhard Domagk
b) Paul Ehrlich
c) Selman Waksman
d) Alexander Fleming
Answer: a) Gerhard Domagk
52. Which of the following drugs is used to treat high blood pressure?
a) Lisinopril
b) Levodopa
c) Metformin
d) Albuterol
Answer: a) Lisinopril
53. Who discovered the drug insulin for the treatment of diabetes?
a) Frederick Banting and Charles Best
b) Selman Waksman
c) Gertrude B. Elion
d) Albert Hofmann
Answer: a) Frederick Banting and Charles Best
54. Which of the following drugs is used to treat HIV?
a) Ritonavir
b) Atorvastatin
c) Acetaminophen
d) Gabapentin
Answer: a) Ritonavir
55. Who discovered the first effective treatment for syphilis?
a) Paul Ehrlich
b) Gerhard Domagk
c) Selman Waksman
d) Howard Florey
Answer: a) Paul Ehrlich
