58 • if you take diuretics (water pills) • if you are on a salt-restricted diet • if you have or have had severe vomiting and/ or diarrhoea • if you have heart failure • if you have narrow arteries to your kidneys (renal artery stenosis) or only have one functioning kidney, or you have recently had a kidney transplant • if you have narrowing of the arteries (atherosclerosis), angina pectoris (chest pain due to poor heart function) • if you have ‘ aortic or mitral valve stenosis’ (narrowing of the valves of the heart) or ‘ hypertrophic cardiomyopathy’ (a disease causing thickening of heart muscle) • if you are diabetic • if you have had gout • if you have or have had an allergic condition, asthma or a condition that causes joint pain, skin rashes and fever (systemic lupus erythematodus). • if you have high calcium or low potassium levels or you are on a low potassium diet • if you need to have an anaesthetic (even at the dentist) or before surgery, or if you are going to have tests to check your parathyroid function, you must tell the doctor or medical staff that you are taking Losartan potassium and Hydrochlorothiazide tablets. • if you suffer from primary hyperaldosteronism (a syndrome associated with increased secretion of the hormone aldesterone by the adrenal gland, caused by an abnormality within the gland).