Pertussis vaccine oedema: An experimental model for the action of penicillamine-like drugs

Abstract
A delayed hypersensitivity response was induced in the rat paw using pertussis vaccine. Oedema was measured after the challenging injection.d-Penicillamine and levamisole enhanced the response, while indomethacin suppressed it. This model is useful to distinguish the effects of antiinflammatory drugs from those liked-penicillamine which have a specific activity in rheumatoid arthritis.