Hydrochlorothiazide, also called Microzide, is a special medicine that helps people who have high blood pressure and too much fluid in their body. It works by making them pee more, which gets rid of the extra fluid. It comes in the form of a pill or liquid, and you have to take it the way the doctor tells you. Just like how drinking more water makes you pee more, this medicine helps your body get rid of extra water. Taking this medicine can help keep you healthy and make you feel better.