New stable galenic formulations containing an acid-labile benzimidazol compound, and production process. Said formulations comprise a neutral nucleus on which is applied a layer containing the active ingredient and comprised of the benzimidazol compound having the general formula (I), a water-soluble polymer and non-alkaline reaction vehicles, and on which is applied a second isolating layer which comprises a water-soluble polymer, a pigment and talcum, and a last enteric layer which contains a polymer, a plastifier and talcum. <;CHEM>;