Antacids are alkaline compounds used to neutralize hydrochloric acid that may contain aluminum, magnesium, sodium, potassium, or:
A. prostaglandins
B. histamine
C. calcium
D. antibacterial agents
c
Rationale: Antacids are alkaline compounds that may be used to neutralize hydrochloric acid in the stomach. Common bases used in antacid preparations include calcium, aluminum, magnesium, sodium, and potassium.
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