Which medication is known as HCTZ and is used for treatment of fluid retention?

Hydrochlorothiazide, commonly referred to as HCTZ, is a thiazide diuretic that is widely used in the management of fluid retention, also known as edema. This medication works by promoting the excretion of sodium and water from the body, thereby reducing blood volume and fluid buildup in tissues. It is often prescribed for conditions such as heart failure, kidney disorders, and certain types of hypertension.

The effectiveness of HCTZ in managing fluid retention is largely due to its mechanism of action at the renal level, where it inhibits the reabsorption of sodium in the distal convoluted tubule. This leads to increased urine output and helps relieve symptoms associated with excess fluid in the body.

In contrast, the other medications listed have different uses: Lisinopril is an ACE inhibitor primarily used to treat high blood pressure and heart failure; Coumadin is an anticoagulant used to prevent blood clots; and Dilantin is an anticonvulsant used to manage seizures. Each of these medications has specific indications that do not encompass the treatment of fluid retention as effectively as hydrochlorothiazide does.