Spironolactone Tablet – Uses , Dosage, Precautions & Side Effects

Sep 12, 2025

When it comes to treating conditions like fluid retention, high blood pressure, and certain hormonal imbalances, spironolactone 100 mg tablet is one of the most trusted medications. Marketed under the brand name S LACTONE 100, this medicine is widely used because of its effectiveness and safety when taken under medical guidance. Patients often search for reliable solutions for swelling, heart-related issues, and hormonal problems, and spironolactone tablets offer a clinically proven option.

The spironolactone 100 mg oral tablet is prescribed by doctors for multiple health concerns, making it a versatile treatment. If you are considering this medicine, it is important to understand its uses, benefits, side effects, and precautions.

What Is Spironolactone 100 mg Tablet?

Spironolactone 100 mg tablet belongs to a class of medicines called potassium-sparing diuretics. Unlike other diuretics (water pills) that cause potassium loss, spironolactone helps the body retain potassium while removing excess sodium and water. This action helps reduce fluid buildup, lowers blood pressure, and balances hormones in specific medical conditions.

Uses of Spironolactone Tablets

The spironolactone 100 mg oral tablet is prescribed for several health conditions, such as:

  • Edema (Fluid Retention): Common in patients with heart failure, liver cirrhosis, or kidney disease.

  • High Blood Pressure (Hypertension): Helps lower blood pressure and reduce risks of stroke or heart attack.

  • Heart Failure: Reduces fluid overload and improves heart function.

  • Hyperaldosteronism: Treats conditions caused by excessive aldosterone hormone levels.

  • Hormonal Acne & PCOS in Women: Helps control excess androgen levels, reducing acne, hair growth, and hormonal imbalance.

Dosage of Spironolactone 100 mg Tablet

Dosage should always be personalized and decided by your healthcare provider, but here's a general guideline for adults:

Condition Typical Daily Dose
High Blood Pressure 50–100 mg once daily
Heart Failure 25–100 mg once or twice daily
Edema (fluid retention) 100 mg daily (range 25–200 mg)
Hyperaldosteronism 100–400 mg daily
Acne/Hormonal Issues (women) 50–100 mg daily

Note: Do not change your dose without medical guidance. The spironolactone tablet (S LACTONE 100) should be taken consistently at the same time each day, preferably in the morning.

How Does Spironolactone Work? (Mechanism of Action)

The mechanism of action of spironolactone involves two key functions:

1. Aldosterone Antagonism

Spironolactone blocks aldosterone receptors in the kidneys. Aldosterone is a hormone that causes the body to retain salt and water while getting rid of potassium. By inhibiting aldosterone, spironolactone:

  • Promotes salt and water excretion

  • Helps retain potassium

  • Reduces fluid overload and blood pressure

2. Anti-Androgen Effect

Spironolactone also blocks androgen (male hormone) receptors, which reduces:

  • Sebum (oil) production in the skin

  • Hormonal acne

  • Facial hair growth (hirsutism) in women

These two mechanisms make it highly versatile in treating both cardiovascular and hormonal conditions.

How to Take Spironolactone Tablets Safely

Here are some essential usage tips:

  • Take your spironolactone 100 mg tablet once daily, preferably in the morning.

  • Swallow with a glass of water. Food can reduce stomach upset but is not required.

  • Do not skip doses and avoid doubling up if you miss one.

  • Keep up with your doctor’s appointments and lab tests.

  • Store the tablets at room temperature away from moisture and light.

Spironolactone Side Effects

While many people take spironolactone without issues, side effects can occur.

Common Side Effects:

  • Frequent urination

  • Nausea or stomach upset

  • Dizziness or fatigue

  • Breast tenderness

  • Irregular periods (in women)

Serious (Call Your Doctor):

  • Signs of high potassium: muscle weakness, numbness, slow heartbeat

  • Severe allergic reactions (rare)

  • Confusion, extreme fatigue, or fainting

Who Should Avoid Spironolactone?

You should not take spironolactone tablets if you:

  • Have severe kidney disease or no urine output

  • Have high potassium levels

  • Are pregnant or breastfeeding

  • Are taking other medications that raise potassium (e.g., ACE inhibitors, potassium supplements)

Precautions Before Taking Spironolactone 100 mg Oral Tablet

  • Always take the medicine as prescribed by your doctor.

  • Do not use if you have severe kidney disease or high potassium levels.

  • Avoid potassium-rich supplements unless advised by your doctor.

  • Pregnant or breastfeeding women should consult their doctor before use.

  • Regular blood tests may be needed to monitor kidney function and potassium levels.

Why Choose S LACTONE 100 by Steris Healthcare?

Not all spironolactone tablets are created equal. S LACTONE 100 by Steris Healthcare offers:

  • Trusted pharmaceutical manufacturing

  • Precise 100 mg dosing for tailored treatment

  • Affordable pricing with no compromise on quality

  • Used and recommended by physicians across specialties

  • Stringent quality control and regulatory compliance

When you choose S LACTONE 100, you’re choosing a brand that puts patient care first.

Frequently Asked Questions

Q1: What is spironolactone 100 mg tablet used for?
It is used for fluid retention, high blood pressure, heart failure, hormonal acne, and PCOS.

Q2: Can spironolactone tablets cause weight loss?
Weight loss may occur due to water reduction, but it is not a weight-loss medicine.

Q3: How long does spironolactone take to work?
Improvement in swelling and fluid retention can be seen within a few days, while hormonal benefits may take weeks.

Q4: Can I take spironolactone 100 mg with other medicines?
Always consult your doctor, as it may interact with blood pressure medicines, diuretics, or potassium supplements.

Q5: Are spironolactone side effects common?
Most side effects are mild and temporary, but regular checkups help ensure safe usage.

Conclusion

The spironolactone 100 mg tablet is a trusted medication for managing fluid retention, high blood pressure, and hormonal imbalances. When taken under medical guidance, it offers effective relief and improves overall health. With Steris Healthcare’s commitment to quality, you can be assured of safe and reliable treatment.

If you are looking for genuine and affordable spironolactone tablets, choose S LACTONE 100 from Steris Healthcare today and take a step toward better health. Contact us to know more or place an order now!

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