Hypersensitivity: to one of the active substances of PENTAXIM, to any of the excipients listed in Description, glutaraldehyde, neomycin, streptomycin, or polymyxin B (used during manufacturing, and which may be present in trace amounts), pertussis vaccine (acellular or "whole cell").
Severe reaction after a previous injection of the vaccine or a vaccine containing the same substances.
Vaccination should be postponed in case of fever or acute illness.
Progressive encephalopathies.
Encephalopathy within 7 days of a previous dose of any vaccine containing pertussis antigens ("whole cell" or acellular pertussis vaccine).