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Chemistry in Everyday Life
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Antacids, antihistamines, analgesics, antibiotics
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Difficulty 1 of 3
el056
Which of the following drugs lowers the secretion of stomach acid by blocking histamine H2 receptors?
A
Brompheniramine
B
Ranitidine
C
Terfenadine
D
Codeine
Answer: B
Ranitidine (like cimetidine) is an H2 receptor antagonist. Brompheniramine and terfenadine block H1 receptors and codeine is a narcotic analgesic.
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