Prescription requiredAntihypertensive, Antianginal

Ziblok 25MG — Uses, Dosage & Benefits

Ziblok 25MG is used for Treatment of hypertension (high blood pressure), angina (chest pain), and as add-on therapy in stable chronic heart failure; also used for rate control in certain tachyarrhythmias as prescribed..

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

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Active Ingredient / Composition

Atenolol (25mg)

What is Ziblok 25MG used for?

Treatment of hypertension (high blood pressure)
angina (chest pain)
and as add-on therapy in stable chronic heart failure; also used for rate control in certain tachyarrhythmias as prescribed.

How Ziblok 25MG Works

Metoprolol is a cardioselective beta-1 adrenergic blocker. It reduces heart rate and the force of contraction, lowering blood pressure and myocardial oxygen demand. In heart failure, it helps improve cardiac function over time by reducing harmful sympathetic stimulation.

Dosage & Directions

Take by mouth exactly as prescribed, usually once daily for prolonged-release tablets. Swallow whole with water; do not crush or chew. Can be taken with or without food, but take at the same time each day for best effect.

Always follow your doctor's prescription. Do not self-medicate.

Key Benefits

Lowers blood pressure
Reduces frequency of angina attacks
Controls heart rate
Helps improve symptoms and outcomes in stable chronic heart failure (as prescribed)

Pregnancy

Use with caution / Consult doctor

Alcohol Interaction

Use with caution (may increase dizziness and lower blood pressure)

Ziblok 25MG — Quick Facts

Composition: Atenolol (25mg)
Therapeutic class: Antihypertensive, Antianginal
Drug class: Cardioselective beta-blocker (Beta-1 adrenergic blocker)
Prescription: Required (Rx)
Price: ₹13
Habit forming: No
Storage: Store below 25°C in a dry place, protected from light and moisture. Keep out of reach of children.

Ziblok 25MG — Usage FAQs

How should I take this medicine?

Follow the dosage prescribed by your doctor. Do not alter the dose without medical advice.

Can I take this medicine without a prescription?

Prescription-required medicines need a valid Rx. OTC medicines can be purchased directly.

What if I miss a dose?

Take the missed dose as soon as you remember, unless it is close to your next scheduled dose. Do not double the dose.

How long does it take to show effect?

The time to show effect varies by medicine and condition. Consult your doctor for specific timelines.

Ziblok 25MG — Uses, Dosage & Benefits

Active Ingredient / Composition

What is Ziblok 25MG used for?

How Ziblok 25MG Works

Dosage & Directions

Key Benefits

Pregnancy

Alcohol Interaction

Ziblok 25MG — Quick Facts

Ziblok 25MG — Usage FAQs

More from PingMeDoc™

Safety disclaimer

Ziblok 25MG — Uses, Dosage & Benefits

Active Ingredient / Composition

What is Ziblok 25MG used for?

How Ziblok 25MG Works

Dosage & Directions

Key Benefits

Pregnancy

Alcohol Interaction

Ziblok 25MG — Quick Facts

Ziblok 25MG — Usage FAQs

More from PingMeDoc™

Safety disclaimer