An 80-year-old man comes to the emergency department for a 2-day history of difficulty voiding and incontinence. Urinary post-void residual volume is 400 mL. The prostate is large on digital rectal examination. Current medications include chlorpheniramine, terazosin, hydrochlorothiazide, and verapamil. He drinks 4 cups of licorice tea daily. Which of the following is the most likely explanation for this patient’s findings?
Chlorpheniramine
Glycyrrhizic acid
Hydrochlorothiazide
Terasozin
Verapamil
