Spironolactone – Aldactone

Spironolactone (sold under the brand Aldactone) is a potassium-sparing diuretic with mild anti-androgenic activity. It works by blocking aldosterone, which helps the body shed excess water without losing potassium the way other diuretics do. It is not an anabolic steroid and will not add muscle or strength.

It is most often used in the final stages of contest prep to pull subcutaneous water out from under the skin and give a harder, drier look on stage. Its mild anti-androgenic effect also makes it popular off-label for managing androgenic acne and oily skin. It has no role in building size, so it is not something to add to a bulking plan.

As a general guide and not medical advice, users new to the compound often start around 50mg per day taken with food, moving up to 100mg per day after a week if it is well tolerated, with 200mg per day treated as an upper limit. Runs are usually kept short, around 4 to 8 weeks, and the dose is normally taken in the morning to cut down on nighttime trips to the bathroom. Always check with a healthcare professional before use.

Because it affects fluid and electrolyte balance, common issues include increased urination, dizziness or low blood pressure, and shifts in sodium and potassium levels. Some men also report breast tenderness or gynaecomastia due to its anti-androgenic action. Baseline and follow-up bloodwork covering kidney function and electrolytes is strongly recommended, along with regular blood pressure checks.

No. Spironolactone is not a suppressive anabolic compound, so it does not carry a PCT requirement of its own and is not typically stacked with other water-management or anti-androgen products. It is usually run alone, short-term, alongside whatever cycle or prep protocol a person is already following.

Every box we sell is authentic Syncom Labs product with its own verification check-code so you can confirm it before use. Orders are shipped from within the UK on Royal Mail Tracked 24 in plain, discreet packaging, and most customers see delivery in 1 to 2 working days. Get your payment through before midday on a working day and we will get it dispatched the same day.