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cimetidine (tagamet)

available over the counter: yes

uses: treatment of ulcers of stomach and duodenum, esophagitis, gastoesophageal reflux

mechanism of action: blocks action of histamine, and therefore decreases secretion of hydrochloric acid

side effects
• common:
headache, fatigue, drowsiness, nausea, vomiting
• less common: blurred vision, decreased sexual desire or function, swelling of breasts in men and women, temporary hair loss
• serious: irregular heart rhythm, bleeding difficulties, bruising, fever, chills

concerns: avoid smoking cigarettes as it may increase gastric acid secretion


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