Zobid must not be used in the presence of peptic ulcers or gastrointestinal bleeding, hypersensitivity (e.g., with asthma attacks, urticaria, acute rhinitis) to acetylsalicylic acid (aspirin) or other NSAIDs. Known hypersensitivity to diclofenac, sodium metabisulphite, benzyl alcohol, propylene glycol and mannitol.