“…Finally, a number of authors [1,2,7,10,11,13,15] relate the decrease in elective surgery for GDPU to the acquisition of new therapeutic medicaments for treating ulcers (pirenzepine, histamine PU-receptor antagonists, carbenoxalone, sucralfate, etc.). Thus, certain authors [7] have studied the incidence of elective surgery for uncom plicated ulcer, before and after acquiring H2 antagonists, confirming that there is a significant decrease after ac quiring them.…”