Prescription requiredDiuretic (Potassium-sparing diuretic)

Aldactone 25 Tablet — Side Effects & Warnings

Known side effects of Aldactone 25 Tablet include Hyperkalemia, nausea, vomiting, diarrhea, abdominal cramps, dizziness, headache, fatigue, gynecomastia, breast tenderness, menstrual irregularities, decreased libido, rash. Not everyone experiences these side effects.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026

Common Side Effects

Hyperkalemia
nausea
vomiting
diarrhea
abdominal cramps
dizziness
headache
fatigue
gynecomastia
breast tenderness
menstrual irregularities
decreased libido
rash

This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.

Important Warnings

Risk of high potassium (hyperkalemia), especially in kidney disease, diabetes, dehydration, or when combined with ACE inhibitors/ARBs or potassium supplements. Avoid in severe kidney impairment, anuria, Addison’s disease, or known hyperkalemia. Monitor serum potassium, sodium and kidney function regularly. May cause dizziness; use caution while driving. Use caution in liver disease.

Drug Interactions

Aldactone 25 Tablet may interact with the following:

ACE inhibitors (e.g.
enalapril)
ARBs (e.g.
losartan)
aliskiren
potassium supplements/salt substitutes
other potassium-sparing diuretics (amiloride
triamterene)
NSAIDs (ibuprofen
diclofenac)
lithium
digoxin
trimethoprim/cotrimoxazole
heparin/LMWH

Always tell your doctor about all medicines you are taking, including over-the-counter drugs and supplements.

Pregnancy Safety

Use with caution (generally not recommended unless clearly needed; consult doctor)

Alcohol Interaction

Use with caution (may increase dizziness/low blood pressure)

Habit Forming

Storage

Store below 25°C, protected from moisture and light. Keep in original pack and out of reach of children.

Aldactone 25 Tablet — Safety Summary

Composition: Spironolactone 25 mg
Prescription: Required (Rx)
Pregnancy: Use with caution (generally not recommended unless clearly needed; consult doctor)
Alcohol: Use with caution (may increase dizziness/low blood pressure)
Habit forming: No

Aldactone 25 Tablet — Safety FAQs

What should I do if I experience side effects?

Mild side effects often resolve on their own. If side effects are severe or persistent, stop the medicine and consult your doctor immediately.

Are all listed side effects common?

No. Some side effects are common while others are rare. Not everyone experiences side effects. Consult your doctor if you are concerned.

Can I take this medicine with other drugs?

Some medicines interact with each other. Always inform your doctor about all medicines you are currently taking.

When should I seek emergency help?

Seek immediate medical attention if you experience severe allergic reactions (difficulty breathing, swelling of face/throat), chest pain, or any life-threatening symptoms.

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Safety disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice. If you experience severe side effects, seek medical attention immediately.

Aldactone 25 Tablet — Side Effects & Warnings

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026