Hypoglycemia w/ other antidiabetics, disopyramide, fluoxetine, sulfonamide antibiotics, fibrates, MAOIs, ACE inhibitors; medicines to relieve pain & lower fever eg, pentoxifylline, propoxyphene & salicylates (eg, acetylsalicylic acid); pentamidine. Hyperglycemia w/ corticosteroids (eg, cortisone), danazol, diazoxide, PIs, diuretics, glucagon, INH, somatropin, thyroid hormones; oestrogens & progestogens; clozapine, olanzapine & phenothiazine derivatives; sympathomimetics eg, epinephrine (adrenaline), salbutamol & terbutaline. Blood sugar level may rise or fall w/ β-blockers (eg, clonidine, guanethidine, reserpine) or clonidine; lithium salts; alcohol. Development of heart failure w/ pioglitazone.