Nausea, vomiting, dyspepsia, gastric pyrosis, abdominal pain, diarrhea, intestinal microlesions, ulcerative activation & hemorrhages. Rash, urticaria & exanthema w/ or w/o itching; signs of hepatic dysfunction & anaphylactic phenomena. W/ prolonged use, alterations of the blood corpuscular elements & water retention w/ possible onset of swellings & edemas.