twelve patients with duodenal ulcers were each given on separate days and in random order an oral local anaesthetic ( oxethazaine ) , an alkali ( aluminium hydroxide and magnesium hydroxide ) , a combination of local anaesthetic and alkali ( mucaine ) , and a similar volume of water ( control ) followed one hour later by a solution of meat extract ( oxo ) .
C0013295
duodenal ulcers
C0002371
aluminium