"What are diuretics and how do they work?
The amount of fluid (water) retained by the body is controlled primarily by the kidneys. This occurs due to the kidney's ability to control the retention and elimination of sodium and chlorid"...
Aldactone Consumer (continued)
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: increased thirst, change in the amount of urine, mental/mood changes, unusual fatigue/weakness, muscle spasms, menstrual period changes, breast pain, breast enlargement (gynecomastia) in men, sexual function problems, signs of infection (e.g., fever, persistent sore throat), severe stomach/abdominal pain, persistent nausea/vomiting, vomit that looks like coffee grounds, dark urine, yellowing of the eyes/skin, easy bruising/bleeding.
This medication may lead to high levels of potassium, especially in patients with kidney problems. If not treated, very high potassium levels can be fatal. Tell your doctor right away if you notice any of the following serious side effects: slow/irregular heartbeat, muscle weakness.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the Aldactone (spironolactone) Side Effects Center for a complete guide to possible side effects
PRECAUTIONS: Before taking spironolactone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney problems, liver problems, untreated mineral imbalance (such as high potassium, low sodium), decreased adrenal gland function (Addison's disease).
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
This medication may increase your potassium levels. Before using potassium supplements or salt substitutes that contain potassium, consult your doctor or pharmacist. Limit foods high in potassium such as bananas, tomatoes, potatoes, and low-salt milk. Consult your doctor or pharmacist for more details, including recommendations.
This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
Older adults may be more sensitive to the side effects of this drug, especially the effects on potassium (see Side Effects section).
This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor.
This medication passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breast-feeding.
Additional Aldactone Information
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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