Enhanced blood-glucose-lowering effect & increased susceptibility to hypoglycemia w/ anti-hyperglycaemics, ACE inhibitors, disopyramide, fibrates, fluoxetine, MAOIs, pentoxifylline, propoxyphene, salicylates & sulfonamides. Reduced blood-glucose-lowering effect w/ corticosteroids, danazol, diazoxide, diuretics, glucagon, INH, oestrogens & progestogens, phenothiazine derivatives, somatropin, sympathomimetics (eg, epinephrine, salbutamol, terbutaline), thyroid hormones, atypical antipsychotics (eg, clozapine & olanzapine) & PIs. May either potentiate or weaken blood-glucose-lowering effect of insulin w/ β-blockers, clonidine, lithium salts or alcohol. Hypo-/hyperglycaemia w/ pentamidine. Concomitant use w/ antibiotics; paracetamol; warfarin &/or coumarin derivatives. Reduced or absent signs of adrenergic counter-regulation w/ sympatholytics (eg, β-blockers, clonidine, guanethidine & reserpine). Reduced rate of absorption of medicinal products w/ narrow therapeutic ratio. Delayed T
max & reduced C
max of digoxin & ramipril.