Hydrochlorothiazide may increase your risk of skin cancer. Avoid sunlight or tanning beds. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors. Your doctor may want you to have skin examinations on a regular basis.
Drinking alcohol can further lower your blood pressure and may increase certain side effects of this medicine.
Do not use potassium supplements or salt substitutes while you are taking this medicine, unless your doctor has told you to.
Avoid getting up too fast from a sitting or lying position, or you may feel dizzy.
Avoid becoming overheated or dehydrated during exercise, in hot weather, or by not drinking enough fluids. Follow your doctor's instructions about the type and amount of liquids you should drink. In some cases, drinking too much liquid can be as unsafe as not drinking enough.
