Which of the following compounds relaxes the smooth muscles of the bronchial passages?
A) Theophylline
B) Lithium
C) Phenytoin
D) Acetaminophen
Answer: Theophylline
Which of the following compounds relaxes the smooth muscles of the bronchial passages?
A) Theophylline
B) Lithium
C) Phenytoin
D) Acetaminophen
Answer: Theophylline