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Prescription requiredFdc LtdAntihypertensive, Antianginal
Ziblok 25 mg
Atenolol (25mg)
₹13MRP ₹135% offIn stock
Order on WhatsAppDelivered across India in about 3–5 days, Chennai next day. ₹49 delivery, free above ₹999.
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Ziblok 25 mg 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 September 2026
Licensed pharmacyPharmacist-verified orderDelivered across India
Key details
Salt: Atenolol (25mg)
Available variants: 25 mg 14`S
Best price: ₹13
MRP: ₹13
Prescription: Required
Manufacturer: FDC LIMITED
Ordering notes
Standard delivery across India. No same-day delivery nationally.
Chennai express delivery is possible and chargeable. Learn more
Returns & refunds: orders can be cancelled before dispatch; after dispatch, returns depend on the item category. Read the full policy
Composition of Ziblok 25 mg
Ziblok 25 mg contains Atenolol (25mg). It belongs to the Cardioselective beta-blocker (Beta-1 adrenergic blocker) class of medicines.
Uses of Ziblok 25 mg
- 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.
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)
How Ziblok 25 mg 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.
How to take Ziblok 25 mg
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.
Take it exactly as your doctor prescribed. Do not change the dose or stop early on your own.
Missed dose and overdose
If you miss a dose
If you miss a dose of Ziblok 25 Tablet, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular schedule. Do not double the dose.
If you take too much
An overdose of this medicine can cause a dangerously slow heartbeat, a severe fall in blood pressure, wheezing and fits. Do not wait for symptoms to appear — go to the nearest emergency department and take the pack or strip with you.
Side effects of Ziblok 25 mg
Most side effects of Ziblok are mild and settle as the body adjusts. Reported side effects include:
- tiredness
- dizziness
- slow heart rate (bradycardia)
- low blood pressure
- cold hands/feet
- headache
- nausea
Stop the medicine and seek help immediately for a rash, swelling of the face or lips, wheezing or difficulty breathing. Tell your doctor about any side effect that persists or worries you.
Safety advice for Ziblok 25 mg
| Pregnancy | Use with caution / Consult doctor |
|---|---|
| Breastfeeding | Breast feeding UNSAFE |
| Alcohol | Use with caution (may increase dizziness and lower blood pressure) |
| Driving | Driving UNSAFE |
| Kidney | Kidney CAUTION |
| Liver | Liver SAFE IF PRESCRIBED |
| Habit forming | No |
Warnings and precautions
Do not stop suddenly (may worsen angina/trigger heart attack); taper under medical supervision. Use with caution in asthma/COPD (may cause bronchospasm), diabetes (may mask low-sugar symptoms), thyroid disorders, peripheral vascular disease, and in patients with bradycardia, heart block, or acute decompensated heart failure. Monitor blood pressure and pulse; seek help if fainting, very slow pulse, wheezing, or worsening breathlessness/swelling occurs.
Do not take Ziblok if
Not for anyone with a known allergy to this medicine or to any ingredient in the pack. Not for people with a very slow heart rate, certain heart block disorders, or uncontrolled heart failure. Generally avoided in severe asthma.
Interactions with other medicines
Other antihypertensives (additive hypotension), verapamil/diltiazem/amiodarone/digoxin (bradycardia/heart block), clonidine (rebound hypertension if withdrawn improperly), insulin/oral antidiabetics (masked hypoglycaemia), NSAIDs (reduced BP effect), CYP2D6 inhibitors like fluoxetine/paroxetine/quinidine (increased metoprolol levels).
How to store Ziblok 25 mg
Store below 25°C in a dry place, protected from light and moisture. Keep out of reach of children.
Expert advice for Ziblok 25 mg
It may cause dizziness. If this happens to you, get up slowly when rising from a sitting or lying position. It can hide symptoms of low blood sugar if you are diabetic. Monitor your blood sugar levels regularly. Do not stop taking Ziblok 25 Tablet suddenly as it can cause your blood pressure to rise suddenly, thereby increasing the risk of heart attack and stroke.
Manufacturer and class
- Manufacturer:
- FDC LIMITED
- Therapeutic class:
- Antihypertensive, Antianginal
- Drug class:
- Cardioselective beta-blocker (Beta-1 adrenergic blocker)
- Chemical class:
- Phenylacetamides
Substitutes for Ziblok 25 mg
Medicines with the same active ingredient (Atenolol (25mg)). Ask your doctor or pharmacist before switching brands.
| Medicine | Pack | Price | vs Ziblok 25 mg |
|---|---|---|---|
| Aten 25 TabletZYDUS HEALTHCARE PHARMA | tablet · 14 Tablet | ₹31 | 146% more |
| Atecard 50 mgALEMBIC PHARMA | 14`S | ₹36 | 185% more |
| Betacard 25 TabletTorrent Pharmaceuticals Ltd | tablet · 14 Tablet | ₹50 | 292% more |
| Tenolol 25 mg TabletIPCA LABORATORIES LTD` | tablet · 14`S | ₹53 | 318% more |
| Atecard 25 mgALEMBIC PHARMA | 14`S | ₹56 | 339% more |
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Ziblok 25 mg FAQs
What is Ziblok 25 mg used for?
Ziblok 25 mg is commonly 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. Always follow your doctor's advice, this information is for educational purposes and not a substitute for professional medical guidance.
What is the salt in Ziblok 25 mg?
Ziblok 25 mg contains Atenolol (25mg). If you are allergic to any of these active ingredients or excipients, do not take this medicine and speak to your doctor first.
How should I take Ziblok 25 mg?
Take by mouth exactly as prescribed, usually once daily for prolonged-release tablets. Take it exactly as prescribed; do not change the dose or stop early without talking to your doctor.
How does Ziblok 25 mg work?
Metoprolol is a cardioselective beta-1 adrenergic blocker.
Is Ziblok 25 mg a prescription medicine?
Yes. Ziblok 25 mg is a prescription-only (Rx) medicine. Upload a valid prescription from a registered medical practitioner during checkout. We cannot dispense it without a valid Rx.
What are the common side effects of Ziblok 25 mg?
The side effects reported most often with Ziblok are tiredness, dizziness, slow heart rate (bradycardia), low blood pressure, cold hands/feet. Most are mild and settle as the body adjusts; tell your doctor if any of them persist or worry you, and stop the medicine and seek help at once for a rash, swelling of the face or lips, or difficulty breathing.
Can Ziblok 25 mg be taken during pregnancy?
Use with caution / Consult doctor Always tell your doctor if you are pregnant, planning a pregnancy or breastfeeding before starting Ziblok.
Can I drink alcohol while taking Ziblok 25 mg?
Use with caution (may increase dizziness and lower blood pressure)
What if I miss a dose of Ziblok 25 mg?
If you miss a dose of Ziblok 25 Tablet, take it as soon as possible.
Is Ziblok 25 mg habit forming?
No. Ziblok 25 mg is not known to be habit forming when taken as prescribed.
How much does Ziblok 25 mg cost on PingMeDoc Pharmacy?
Ziblok 25 mg starts at ₹13 (MRP ₹13) on PingMeDoc Pharmacy. Available in 25 mg 14`S. Final price is confirmed at checkout and may vary by variant and location.
Who manufactures Ziblok 25 mg?
Ziblok 25 mg is manufactured by FDC LIMITED. PingMeDoc Pharmacy sources medicines only from licensed manufacturers and distributors.
How is Ziblok 25 mg delivered?
Ziblok 25 mg is delivered across India via our licensed pharmacy partners. Standard delivery timelines are confirmed at checkout. Chennai customers can opt for chargeable same-city express delivery.
Ziblok 25 mg, Quick facts
- Salt
- Atenolol (25mg)
- Best price
- ₹13
- MRP
- ₹13
- Prescription
- Required (Rx)
- Schedule
- Schedule H
- Brand
- FDC Ltd
- Manufacturer
- FDC LIMITED
- Therapeutic class
- Antihypertensive, Antianginal
- Drug class
- Cardioselective beta-blocker (Beta-1 adrenergic blocker)
- Chemical class
- Phenylacetamides
- Action class
- Beta blocker- Cardioselective
- Habit forming
- No
- Variants
- 25 mg 14`S
- Delivery
- Standard across India
References
Compiled from the manufacturer's prescribing information and the sources below, and reviewed by a registered medical practitioner. It does not replace your own doctor's advice.
- Manufacturer labeling, established medical literature (beta-blockers/metoprolol), standard drug references used in Indian clinical practice
- Central Drugs Standard Control Organisation (CDSCO), Ministry of Health & Family Welfare, Government of India, approved drug and schedule listings.
- National List of Essential Medicines (NLEM) 2022, Government of India.
- Manufacturer's package insert / prescribing information for Ziblok 25 mg.
- World Health Organization, ATC/DDD classification and Model Formulary for the active ingredient.
Next steps
Safety disclaimer
Product information is for general awareness and does not replace professional medical advice. Always follow a clinician's guidance and upload a valid prescription when required.