8-phenalkoxyimidazo[1,2-a]pyridinium salts are useful for controlling Helicobacter bacteria. Medicament compositions based on such compounds are prepared and used for the noted purpose.
Substituted heteroarylalkylthiopyridines of the formula (I) ##STR1## are suitable for treating conditions caused by Helicobacter bacteria, in particular the strain Helicobacter pylori.
Compounds of formula I, ##STR1## wherein the substituents and symbols having the meanings stated in the description are new compounds having interesting pharmacological properties. They have a protective effect on the stomach and intestine in warm-blooded animals.
