Heart & Blood Pressure

Aldactone

Spironolactone

Aldactone is spironolactone in 25mg and 100mg tablets, a potassium-sparing diuretic for heart failure, high blood pressure and fluid build-up (oedema), in packs of 30 to 360 tablets.

All strengths and pack prices
Aldactone: price of every strength and pack size
Strength Pack Price
25mg 30 tablets $13.20
25mg 60 tablets $25.20
25mg 90 tablets $36.90
25mg 120 tablets $44.40
25mg 180 tablets $61.20
25mg 360 tablets $104.40
100mg 30 tablets $33.90
100mg 60 tablets $58.20
100mg 90 tablets $86.40
100mg 120 tablets $109.20
100mg 180 tablets $162.00
Category
Heart & Blood Pressure
Active ingredient
Spironolactone
Route
Oral
Form
Tablet
Strengths
25/100mg

You will receive a quality generic equivalent, depending on stock.

Shipped in a discreet, unmarked envelope.

Details

Conditions
Heart failure · High blood pressure · Edema
Therapeutic Class
Potassium-sparing diuretic
Pharmacological Class
Aldosterone antagonist
Minor Side Effects
Frequent urination, Dehydration
Moderate Side Effects
Breast enlargement, Menstrual irregularities
Dosage Forms
Tablet
Administration Route
Oral
Originator
Pfizer
Onset Time
2-4 hours
Duration
24 hours
Storage Instructions
Store at room temperature.
Drug Interactions
Potassium supplements, ACE inhibitors

What you will receive

Aldactone is the originator brand name, made by Pfizer. We use it to identify the medicine; the pack you receive is a generic equivalent, not the original Aldactone.

  • The same active ingredient (Spironolactone) at the same strength.
  • The exact brand supplied depends on what is in stock when your order ships.

FAQ

Which Aldactone strengths and pack sizes can I order?

Aldactone tablets come in 25mg and 100mg. Packs range from 30 to 360 tablets depending on strength. It is generic spironolactone, not the original Aldactone. Larger packs cost less per tablet.

Can large Aldactone orders to Hong Kong be split?

Aldactone orders to Hong Kong ship in plain, unbranded packaging. Very large orders may be split into several parcels. If a parcel does not arrive within the delivery window, or arrives damaged, it is sent again free; if that is not possible, the order is refunded.

What are the alternative names for Aldactone and spironolactone?

Aldactone is a brand name of spironolactone, which is also sold as Verospiron. Here, spironolactone can be bought online as generic Aldactone, and also as spironolactone tablets. These are generics, not the original brand.

How long does Aldactone take to work?

Extra trips to the toilet often start within a day or two, but the effects on fluid, blood pressure and heart failure build much more slowly. Spironolactone can take about two weeks or longer to work fully, so the first days may feel as though little is changing.

What is the difference between the 25mg and 100mg Aldactone tablets?

Only how much spironolactone each tablet holds. The 25mg size lets a daily amount be built up in smaller steps; the 100mg keeps the number of tablets down when a larger daily amount is needed. Both are the same medicine in the same tablet form.

Does spironolactone make you urinate more?

Yes — it is a diuretic, so it nudges the kidneys to put more water and sodium into the urine. Most people notice the extra trips to the toilet soon after starting, and passing urine more often is the medicine doing its job rather than a problem in itself.

Can I take ibuprofen with Aldactone?

It is not a good pairing. NSAID painkillers — ibuprofen, naproxen, diclofenac and aspirin — can raise potassium and work against the fluid-clearing effect of spironolactone. Paracetamol does not carry that interaction.

About Aldactone

What Aldactone tablets are for, and how they work

Aldactone tablets contain spironolactone, a diuretic that helps the body pass out surplus water and sodium in the urine. It is used for oedema (swelling in the ankles, feet and legs caused by fluid build-up), for heart failure and for high blood pressure. It also helps when the body makes too much aldosterone, the hormone that decides how much sodium and potassium the kidneys hold on to.

Aldosterone tells the kidneys to keep sodium and let potassium go. Spironolactone blocks that signal, so more sodium and water leave the body while potassium stays behind. That is why it is called a potassium-sparing diuretic — unlike water tablets that flush potassium out along with the fluid. The effect builds gradually rather than all at once.

Taking your tablets

Swallow them with a glass of water, with food or just after a meal, which is easier on the stomach. Most people take spironolactone once or twice a day. Because the tablets make you pass urine more often, a dose taken late in the day can mean broken sleep. Keep the tablets in their original pack, away from heat.

Side effects to expect

Dizziness, feeling sick, muscle or leg cramps and tiredness are the effects people notice most. Breast tenderness or enlargement can happen too, in men as well as women. Serious problems are rare: a severe allergic reaction with swelling of the throat or tongue, an itchy raised rash or difficulty breathing; blistering skin; liver problems that turn the skin and eyes yellow; kidney problems; and potassium climbing too high. High potassium brings muscle weakness, numbness, tiredness and an irregular heartbeat, and needs urgent attention.

What not to take alongside it

Potassium supplements and salt substitutes containing potassium pull the same lever as spironolactone and can push potassium too high. Eplerenone and ACE inhibitors, two other medicines that raise potassium, add to the risk.

Aldactone or the Spironolactone listing?

A second listing, Spironolactone, holds the same two strengths in the same tablet form. Both are spironolactone; the name on the pack is the difference. How it works, how it is taken and what to watch for are the same either way. The ingredient itself is covered on spironolactone.

Sources

  1. Spironolactone: MedlinePlus Drug Information — MedlinePlus / U.S. National Library of Medicine
  2. Spironolactone - NHS — NHS UK