Thiazide diuretic medicines, or water pills, are used to control high blood pressure (hypertension).This may be a problem for older people who take low-dose aspirin to protect against heart disease.Low doses reduce uric acid excretion and increase the chance of hyperuricemia.Other medicines can also increase uric acid level and raise the risk of developing gout.These medicines are strongly linked to the development of gout.Many older patients who develop gout take diuretics.Levodopa, commonly used to treat Parkinson disease.