Healthdirect Free Australian health advice you can count on.

Medical problem? Call 1800 022 222. If you need urgent medical help, call triple zero immediately

healthdirect Australia is a free service where you can talk to a nurse or doctor who can help you know what to do.

beginning of content

Brand name: Aldactone

Aldactone contains the active medicine spironolactone. It is only available with a doctor’s prescription.

Aldactone helps reduce the amount of fluid in the body. It is used to treat high blood pressure and heart failure. It also helps the body retain potassium.

Aldactone also can lessen the effect of male sex hormones. That’s why it can also be used to treat hirsutism (excess body hair in women).

Aldactone comes as a tablet. The dose can vary depending on the condition being treated.

You should seek medical advice in relation to medicines and use only as directed by a healthcare professional. Always read the label. If symptoms persist see your healthcare professional. healthdirect medicines information is not intended for use in an emergency. If you are suffering an acute illness, overdose, or emergency condition, call triple zero (000) and ask for an ambulance.

Reasonable care has been taken to provide accurate information at the time of creation. This information is not intended to substitute medical advice, diagnosis or treatment and should not be exclusively relied on to manage or diagnose a medical condition. Please refer to our terms and conditions.

Active ingredient in this medicine: spironolactone

Pack size information

Please select the pack size from the options directly below to view information on the medicine.

Information for medicine and pack size:
Aldactone 100 mg film-coated tablet, 100

Consumer Medicine Information leaflet:

This leaflet may also be found inside the medicine package. It contains information on side effects, age restrictions and other useful data.

Read leaflet

What this medicine is for

Essential hypertension; oedematous disorders such as oedema and ascites of congestive cardiac failure, cirrhosis of the liver, nephrotic syndrome; diagnosis and treatment of primary hyperaldosteronism; as adjunctive therapy in malignant hypertension; in diuretic induced hypokalaemia when other measures are considered inappropriate or inadequate; prophylaxis of hypokalaemia in patients taking digitalis when other measures are considered inadequate or inappropriate, hirsutism. Essential Hypertension: ALDACTONE, when used alone, is effective in lowering both systolic and diastolic blood pressure. ALDACTONE improves the hypotensive action of thiazide diuretics while at the same time reducing or preventing potassium loss due to the thiazide. ALDACTONE enhances the effectiveness of other antihypertensive agents such as beta blockers, vasodilators etc. Congestive Cardiac Failure: ALDACTONE, when used alone, is effective in the management of oedema and sodium retention associated with congestive cardiac failure. ALDACTONE may be used in combination with a thiazide or other conventional diuretics for achieving diuresis in patients whose oedema is resistant to a thiazide or other conventional diuretics. Unlike conventional diuretics ALDACTONE does not produce hypokalaemia. When administered with a thiazide or other conventional diuretics ALDACTONE offsets hypokalaemia induced by these diuretics. The prevention of potassium loss is particularly important in the treatment of digitalized patients since digitalis intoxication may be precipitated if hypokalaemia is induced by conventional diuretic therapy. Hepatic Cirrhosis with Ascites and Oedema: ALDACTONE when used alone is frequently adequate for the relief of ascites and oedema associated with hepatic cirrhosis. ALDACTONE provides a mild and even diuresis and prevents excessive potassium excretion caused by thiazide diuretics thus avoiding possible precipitation of hepatic coma. Nephrotic Syndrome : Although glucocorticoids, whose anti inflammatory activity appears to benefit the primary pathologic process in the renal glomerulus, should probably be employed first, ALDACTONE either alone or in combination with a conventional diuretic is useful for inducing diuresis. Primary Hyperaldosteronism: ALDACTONE may be used to establish the diagnosis of primary hyperaldosteronism by therapeutic trial. ALDACTONE may also be used for the short term pre operative treatment of patients with primary hyperaldosteronism, long term maintenance therapy for patients with discrete aldosterone producing adrenal adenomas who are judged to be poor operative risks (or who decline surgery), and the long term maintenance therapy for patients with bilateral micro or macronodular adrenal hyperplasia (idiopathic hyperaldosteronism). Hirsutism in Females: ALDACTONE is effective in the treatment of females with hirsutism, an androgen related increase in facial and body hair. A reduction in hair growth, hair shaft diameter and hair pigmentation is seen. Use of Aldactone should be considered only after all other alternatives of non drug therapy have been explored. For women of child bearing age, see CONTRAINDICATIONS and PRECAUTIONS, Use in Pregnancy.

Table of characteristics
Table of characteristics
Active ingredient
Visual appearance Round, buff-coloured film-coated tablet engraved "SEARLE" over "134" on one side and plain on the reverse, with peppermint odour.

Images are the copyright of the Pharmacy Guild of Australia

Dosage Form Tablet, film coated
Route of administration Oral
Medicine schedule
100 tablets: Prescription Only Medicine, or Prescription Animal Remedy

There is one type of pack available.

Pack type 1
Pack type 1
Type Blister Pack
Storage temperature Store below 30 degrees Celsius
Storage conditions No information available
Life time 5 Years
This medicine was verified as being available on the PBS (Pharmaceutical Benefits Scheme) on 1 March 2018

The PBS provides a list of government subsidised medicines available to be dispensed to patients. Further information can be found on the Pharmaceutical Benefits Scheme website.

Go to PBS site

Is this medication banned in sport?

Check if you can use your medicine whilst playing sport. Search the Australian Sports Anti-Doping Authority (ASADA) database that provides information about the prohibited status of specific medications and/or the active ingredient based on the current World Anti-Doping Agency (WADA) Prohibited List.

Go to ASADA site

The information displayed on this page is authored by Healthdirect Australia, or obtained from trusted sources.

Need more information?

These trusted information partners have more on this topic.

Found 12 results

Aldactone Tablets -

Aldactone Tablets - Consumer Medicines Information leaflets of prescription and over-the-counter medicines

Read more on myDr – Consumer Medicine Information website

Aldactone (spironolactone) information | myVMC

Aldactone (spironolactone) is used for hypertension, oedematous disorder, and hirsutism. It is also used to avoid the lowering of potassium in the blood.

Read more on myVMC – Virtual Medical Centre website

Hormonal treatments - All About Acne

The All About Acne team are a group of health and medical experts who have an interest in the management of acne. They include several dermatologists, a psychiatrist, a pharmacist and a cosmetic medical practitioner. These people donate their time and expertise in order to provide the most up-to-date, practical and relevant information on acne-related matters. All dermatologists on the All About Acne team are Fellows of the Australasian College of Dermatologists.

Read more on All About Acne website

Polycystic ovary syndrome -

Polycystic ovary syndrome (PCOS) is a condition that affects females in their reproductive years. It may cause irregular periods, excess hair growth and cysts on the ovaries.

Read more on myDr website

Impotence causes -

Find out the physical and psychological causes of impotence, also called erectile dysfunction or ED.

Read more on myDr website

High blood pressure treatments -

If you have high blood pressure your doctor may recommend lifestyle measures, such as diet and exercise, and possibly also medicines to control your blood pressure. Find out about the different options.

Read more on myDr website

Breast Pain (Mastalgia) | myVMC

Mastalgia or breast pain isa common symptomencountered by women andmay be due to normal changes in hormone levels or due to certain diseases.

Read more on myVMC – Virtual Medical Centre website

Lisinopril Sandoz Tablets -

Lisinopril Sandoz Tablets - Consumer Medicines Information leaflets of prescription and over-the-counter medicines

Read more on myDr – Consumer Medicine Information website

Captopril Sandoz Tablets -

Captopril Sandoz Tablets - Consumer Medicines Information leaflets of prescription and over-the-counter medicines

Read more on myDr – Consumer Medicine Information website

Akamin Tablets -

Akamin Tablets - Consumer Medicines Information leaflets of prescription and over-the-counter medicines

Read more on myDr – Consumer Medicine Information website

Healthdirect 24hr 7 days a week hotline

24 hour health advice and information you can count on

1800 022 222

Government Accredited with over 140 information partners

We are a government-funded service, providing quality, approved health information

Australian Government, health department logo ACT Government logo New South Wales government, health department logo Northen Territory Government logo Government of South Australia, health department logo Tasmanian government logo Government of Western Australia, health department logo