The vaccine contains several inactivated strains of E. coli expressing the adhesins F4ab, F4ac, F4ad, F5, F6 and F41, which cause neonatal enterotoxicosis in piglets, in aluminium hydroxide adjuvant. In sows and gilts, the vaccine induces the specific seroconversion of vaccinated animals; piglets are immunised by intake of colostrum and milk containing adhesin-specific antibodies.

No undesirable effects have been observed after the administration of twice the recommended dosage.