Deterioration in cardiac symptoms w/ pioglitazone. Reduced insulin requirement by oral hypoglycaemic agents, MAOIs, nonselective β-blocking agents, ACE inhibitors, salicylates, alcohol, anabolic steroids, sulphonamides. Increased insulin requirement by OCs, thiazides, glucocorticoids, thyroid hormones, β-sympathomimetics, growth hormone, danazol. Increased & decreased insulin requirement by octreotide/lanreotide. Intensified & prolonged hypoglycaemic effect w/ alcohol.