antiulcer drugs known as H2-antagonists. By promoting ulcer healing through inhibiting acid
secretion, Tagamet was able to heal ulcers and treat pre-ulcer conditions pharmacologically
on an outpatient basis, thereby substituting for more costly hospital admissions and
surgeries. In 1983 another H2-antagonist called Zantac entered, and by early 1987 US
Zantac sales surpassed those of the pioneering Tagamet. Today there are four H2 …