Corrosive gastritis as a result of ferrous sulphate ingestion.

The toxicity of ferrous sulphate is discussed, with particular reference to fibrosis and stricturing of the stomach. This does not occur in every case, but occasionally, in spite of adequate treatment, ferrous sulphate produces local damage similar to that caused by acid. Endoscopy and barium studies are mandatory to assess the damage, and repeated checks should be undertaken, since late changes may take place as much as 6 years after ingestion. Gastrectomy is often necessary when severe scarring and fibrosis have resulted in damage to the stomach. The need for long-term follow-up of these patients is an important aspect of treatment.