With external application nimesulide usually well tolerated.
Local reactions: moderate or severe skin irritation, hyperemia, rash, desquamation, itching.
Systemic reactions (with prolonged use or use in large areas): heartburn, nausea, vomiting, diarrhea, gastralgia, ulceration of the mucous membrane of the gastrointestinal tract, headache, dizziness; fluid retention, allergic reactions (skin rash, anaphylactic shock); Thrombocytopenia, leukopenia, anemia, agranulocytosis; increased activity of "liver" transaminases; prolonged bleeding time; hematuria.
In case of adverse reactions, discontinue use and prescribe appropriate treatment.