Prescription requiredAntihypertensive, Antianginal

Atpark 25MG Tab — Side Effects & Warnings

Known side effects of Atpark 25MG Tab include bradycardia (slow pulse), dizziness, fatigue, cold hands/feet, low blood pressure, nausea, headache. Not everyone experiences these side effects.

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

Common Side Effects

bradycardia (slow pulse)
dizziness
fatigue
cold hands/feet
low blood pressure
nausea
headache

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

Important Warnings

Do not stop abruptly (may worsen angina/trigger heart problems). Use with caution in asthma/COPD (may cause bronchospasm), diabetes (may mask hypoglycaemia symptoms), peripheral vascular disease, thyroid disorders, kidney impairment, and in elderly. Contraindicated in severe bradycardia, second/third-degree heart block, cardiogenic shock, and uncompensated heart failure unless directed. Monitor blood pressure and pulse regularly.

Drug Interactions

Atpark 25MG Tab may interact with the following:

Verapamil
diltiazem (risk of bradycardia/heart block)
digoxin (bradycardia)
clonidine (rebound hypertension on withdrawal)
other antihypertensives/diuretics (additive hypotension)
NSAIDs (may reduce antihypertensive effect)
insulin/oral antidiabetics (masks hypoglycaemia)
antiarrhythmics like amiodarone (conduction disturbances)

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

Pregnancy Safety

Use with caution / Consult doctor (may affect fetal growth; use only if clearly needed)

Alcohol Interaction

Use with caution (alcohol may increase dizziness and blood pressure lowering effect)

Habit Forming

Storage

Store below 25°C, protect from moisture and direct light, keep in original blister/strip and out of reach of children.

Atpark 25MG Tab — Safety Summary

Composition: Atenolol (25mg)
Prescription: Required (Rx)
Pregnancy: Use with caution / Consult doctor (may affect fetal growth; use only if clearly needed)
Alcohol: Use with caution (alcohol may increase dizziness and blood pressure lowering effect)
Habit forming: No

Atpark 25MG Tab — 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.