Spironolactone is a potassium-sparing diuretic. It lowers blood pressure and
swelling by removing the extra water and electrolytes from the body without loss of
potassium.

Spironolactone is used in combination with other medicines to treat high blood
pressure (hypertension) and heart failure.
Spironolactone is also used to diagnose and treat hyperaldosteronism, a condition in
which the adrenal gland produces too much hormone called aldosterone.
This medicine may also be used to treat fluid retention (edema) in patients with
congestive heart failure, liver cirrhosis, or a kidney disorder called nephrotic
syndrome.

 Stomach pain
 Confusion
 Vomiting
 Dizziness
 Irregular heartbeat
 Headache
 Skin rash
 Drowsiness
 Breast enlargement in male
 Gynecomastia
 Leg cramps
 Nausea and Vomiting
 Breast pain
 Hair loss

This medicine is not recommended for pregnant and breastfeeding women unless
necessary. 
This medicine will increase the potassium levels in the blood. Therefore, it is
advised to avoid potassium-rich foods (potatoes, banana) and medicines that can
increase the potassium levels (ACE inhibitors and potassium supplements).
This medicine is not recommended in patients with diabetes due to increase in the
potassium levels and increases the risk of irregular heart rhythm.