Clinical Features Acute Poisoning Ingestion: * Metallic taste,* Increased salivation * Colicky abdominal pain * Nausea and vomiting. Vomitus is bluish or greenish in color * Diarrhea * Myalgia * Pancreatitis * Methemoglobinemia * Hemolysis * Jaundice * Oliguria and renal failure * Convulsions * Delirium * Coma. Inhalation of Copper Fumes or Dust Causes * Respiratory tract irritation * Cough * Conjunctivitis * Metal fume fever. Chronic Poisoning * Abdominal pain * Greenish line on dental margins of gum (Clapton's line) * Vineyard Sprayer's lung disease: Copper sulphate is used as an insecticide spray in vineyards. During spraying, chronic inhalation of copper sulphate causes this disease. * Greenish hair discolouration * Wilson's disease. REF;THE SYNOPSIS OF FORENSIC MEDICINE:KS NARAYANA REDDY;28th EDITION;PAGE NO 309