IMIDAZOLE DIAGNOSTIC AGENTS

摘要

A pharmaceutical compound and preparation thereof for use as a diagnostic agent to test the secretory action of the stomach is disclosed, which comprises a compound of the following formula wherein R1 is methyl or ethyl; R2 is hydrogen, methyl or ethyl; and R3 is hydrogen, methyl or ethyl, provided that, when R1 is methyl, R2 and R3 are not both hydrogen or its pharmaceutically acceptable acid addition salts and a non-toxic diluent or carrier.