are nova hdrazide an reva hydrochlorothiazide the same medication ## Yes, the Hydrochlorothiazide is also the active ingredient in the Hydrazide. It is a diuretic used to treat conditions such as high blood pressure, congestive heart failure and edema. Common side effects may include: nausea, drowsiness, headache and dehydration. Read more: Is there anything else I can help you with?