Spironolactone (spir-ON-oh-LAK-tone)Brand Name:
Spironolactone has been shown to cause tumors in laboratory animals. Spironolactone should only be used for the conditions for which it is indicated. Avoid unnecessary use of Spironolactone .
Spironolactone is used for:
Treating swelling and fluid retention in patients with congestive heart failure, liver cirrhosis, or kidney problems (nephrotic syndrome). It is also used for treatment of high blood pressure. It may also be used to treat or prevent low blood potassium. It may also be used to treat excess secretion of the hormone aldosterone by the adrenal gland.
Spironolactone is a potassium-sparing diuretic. It works by blocking the hormone aldosterone, causing the kidney to eliminate excess water, save potassium, and lower blood pressure.
Do NOT use Spironolactone if:
- you are allergic to any ingredient in Spironolactone
- you are unable to urinate, have severe kidney problems, or have high blood potassium levels
- you are taking a potassium supplement, another potassium-sparing diuretic (eg, amiloride, triamterene), or another aldosterone-blocker (eg, eplerenone)
Contact your doctor or health care provider right away if any of these apply to you.
Before using Spironolactone :
Some medical conditions may interact with Spironolactone . Tell your doctor or pharmacist if you have any medical conditions, especially if any of the following apply to you:
- if you are pregnant, planning to become pregnant, or are breast-feeding
- if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
- if you have allergies to medicines, foods, or other substances
- if you have high acidity in your body fluids; low blood sodium levels; high blood potassium levels; kidney, liver, or heart disease; diabetes; or high urea or nitrogen in your blood
- if you have menstrual disease
Some MEDICINES MAY INTERACT with Spironolactone . Tell your health care provider if you are taking any other medicines, especially any of the following:
- Adrenocorticotropic hormone (corticotropin) (ACTH) or corticosteroids (eg, prednisone) or because low blood electrolyte levels may occur
- Barbiturates (eg, phenobarbital) or narcotics (eg, morphine) because dizziness upon standing may occur
- Angiotensin-converting enzyme (ACE) inhibitors (eg, enalapril), angiotensin II receptor antagonists (eg, valsartan), cyclosporine, macrolide immunosuppressives (eg, tacrolimus), other aldosterone-blockers (eg, eplerenone), other potassium sparing diuretics (eg, amiloride, triamterene), or potassium supplements because high blood potassium levels may occur (eg, listlessness, confusion, abnormal skin sensations of the arms and legs, heaviness of limbs, slowed heart rate, irregular heart rhythm, potentially life-threatening slow or irregular heartbeat)
- Nonsteroidal anti-inflammatory drugs (NSAIDs) (eg, indomethacin) because they may decrease Spironolactone 's effectiveness and increase the risk of kidney problems and high blood potassium
- Digoxin, digitoxin, lithium, nondepolarizing muscle relaxants (eg, tubocurarine), or quinidine because the risk of their side effects and toxicity may be increased by Spironolactone
- Pressor amines (eg, norepinephrine) because their effectiveness may be decreased by Spironolactone
This may not be a complete list of all interactions that may occur. Ask your health care provider if Spironolactone may interact with other medicines that you take. Check with your health care provider before you start, stop, or change the dose of any medicine.
How to use Spironolactone :
Use Spironolactone as directed by your doctor. Check the label on the medicine for exact dosing instructions.
- Take Spironolactone by mouth with or without food. If stomach upset occurs, take with food to reduce stomach irritation.
- Spironolactone may increase the amount of urine or cause you to urinate more often when you first start taking it. To keep this from disturbing your sleep, try to take your dose before 6 pm.
- If you miss a dose of Spironolactone , take it as soon as possible. If it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not take 2 doses at once. If more than one dose is missed, restart the medication and advise your doctor or pharmacist at your next appointment.
Ask your health care provider any questions you may have about how to use Spironolactone .
Important safety information:
- Spironolactone may cause dizziness or drowsiness. These effects may be worse if you take it with alcohol or certain medicines. Use Spironolactone with caution. Do not drive or perform other possibly unsafe tasks until you know how you react to it.
- Spironolactone can raise your body's potassium levels. This is more likely to occur in people with kidney problems or diabetes, in the elderly, or if the patient is severely ill. Potassium levels must be closely monitored in people with any of these problems or illnesses. If not treated, high potassium levels can be fatal.
- Check with your doctor before you use a salt substitute or a product that has potassium in it.
- Lab tests, including kidney function, blood pressure, blood potassium, and chemistries, may be performed while you use Spironolactone . These tests may be used to monitor your condition or check for side effects. Be sure to keep all doctor and lab appointments.
- Use Spironolactone with caution in the ELDERLY; they may be more sensitive to its effects.
- Spironolactone should be used with extreme caution in CHILDREN; safety and effectiveness in children have not been confirmed.
- PREGNANCY and BREAST-FEEDING: If you become pregnant, contact your doctor. You will need to discuss the benefits and risks of using Spironolactone while you are pregnant. Spironolactone is found in breast milk. Do not breast-feed while taking Spironolactone .
Possible side effects of Spironolactone :
All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome:
Diarrhea; drowsiness; headache; nausea; stomach cramping; vomiting.
Seek medical attention right away if any of these SEVERE side effects occur:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); black, tarry, or bloody stools; change in the amount of urine produced; confusion; dark urine; decreased sexual ability; enlarged breasts in men; irregular or missed menstrual periods; pale stools; severe or persistent stomach pain; symptoms of abnormal fluid or electrolyte levels (eg, fast, slow, or irregular heartbeat; increased thirst; muscle weakness; severe or persistent dry mouth, nausea, or vomiting; severe or persistent dizziness or drowsiness; unusual fatigue or sluggishness; tingling sensation); yellowing of the skin or eyes.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects at http://www.fda.gov/medwatch.
If OVERDOSE is suspected:
Contact 1-800-222-1222 (the American Association of Poison Control Centers), your local poison control center (http://www.aapcc.org), or emergency room immediately. Symptoms may include lightheadedness; nausea; vomiting; weakness.Proper storage of Spironolactone :
Store Spironolactone at room temperature, between 59 and 77 degrees F (15 and 25 degrees C), in a tightly closed container. Store away from heat, moisture, and light. Do not store in the bathroom. Keep Spironolactone out of the reach of children and away from pets.
- If you have any questions about Spironolactone , please talk with your doctor, pharmacist, or other health care provider.
- Spironolactone is to be used only by the patient for whom it is prescribed. Do not share it with other people.
- If your symptoms do not improve or if they become worse, check with your doctor.
This information is summary only. It does not contain all information about Spironolactone . If you have questions about the medicine you are taking or would like more information, check with your doctor, pharmacist, or other healthcare provider.
- Spironolactone Prescribing Information (FDA)
- Spironolactone Professional Patient Advice (Wolters Kluwer)
- Spironolactone Detailed Consumer Information (PDR)
- spironolactone Advanced Consumer (Micromedex) - Includes Dosage Information
- Aldactone Prescribing Information (FDA)
- Aldactone Consumer Overview