Spironolactone (Spiractin 25)
What to know about Spironolactone — also sold as Spiractin 25, Aldactone, Spironolactone Viatris 25, Spiractin 100, Spironolactone Viatris 100: uses, side effects, interactions, and safety considerations for people taking it or caring for someone who is.
Spironolactone (brand names: Spiractin 25, Aldactone, Spironolactone Viatris 25, Spiractin 100, Spironolactone Viatris 100) is classified as Low risk (1 risk points) by AllMeds. It is a S4 medication under the TGA in Australia. Low-risk potassium-sparing diuretic with minimal impact on work capacity.
Key Takeaways
- TGA Schedule: S4 in Australia
- Risk level: Low (1 points)
- Recommended maximum duration: 365 days
- PBS listed: Subsidised under the Australian Pharmaceutical Benefits Scheme
Scheduling and Classification
| Jurisdiction | Classification | Status |
|---|---|---|
| Australia (TGA) | S4 | PBS listed |
Risk Profile
Low-risk potassium-sparing diuretic with minimal impact on work capacity.
How Spironolactone is regulated
Spironolactone is overseen by medicines regulators in each country. The rules below explain how it's scheduled, what oversight applies, and what to discuss with your doctor or pharmacist before starting, changing, or stopping this medication.
Australia TGA / PBS / State Schemes
Classified as S4 under the Therapeutic Goods Administration (TGA).
Listed on the Pharmaceutical Benefits Scheme (PBS) for subsidised prescribing.
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Important: This page is general health information, not personal medical advice. If you have questions about your medication — including starting it, stopping it, changing the dose, or combining it with something else — speak with your doctor or pharmacist. For an emergency or suspected overdose, call your local emergency number or poison information service immediately. Information is drawn from regulator and clinical guideline sources (TGA, FDA, MHRA, NICE, PBS, CDC); see our methodology for details.