Description
Cardiolite 25mg Tablets contain Atenolol, a beta-blocker medicine that helps manage high blood pressure (hypertension), angina (chest pain), and certain heart rhythm disorders.
It works by slowing the heart rate, reducing the heart’s workload, and improving blood flow, which helps prevent heart attacks, strokes, and other cardiovascular complications.
Ingredients
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Active Ingredient: Atenolol 25mg
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Inactive Ingredients: Microcrystalline cellulose, maize starch, povidone, magnesium stearate, and other excipients.
Drug Class
Dosage Form
Uses
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Treatment of high blood pressure (hypertension)
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Management of angina pectoris (chronic chest pain)
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Treatment of irregular heartbeats (arrhythmias)
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Prevention of heart attacks (myocardial infarction)
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Heart protection after a heart attack
Dosage
In Case of Overdose
Symptoms: Very slow heartbeat, severe dizziness, fainting, difficulty breathing, or bluish lips/fingers.
Action: Seek immediate medical attention or go to the nearest emergency department.
Missed Dose
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Take the missed dose as soon as remembered.
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Skip if it’s nearly time for the next dose.
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Do not double the dose to make up for a missed one.
How To Use
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Take orally with a full glass of water, preferably at the same time every day.
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Can be taken with or without food.
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Continue taking even if you feel well — do not stop suddenly without your doctor’s advice.
When Not to Use
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Allergy to Atenolol or any beta-blocker
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Bradycardia (slow heart rate)
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Heart block or severe heart failure
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Shock or very low blood pressure
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Untreated pheochromocytoma (adrenal tumor)
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Metabolic acidosis
Side Effects
Common:
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Tiredness or fatigue
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Cold hands and feet
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Slow heartbeat
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Dizziness
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Nausea
Less Common:
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Sleep disturbances or vivid dreams
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Depression or mood changes
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Shortness of breath
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Gastrointestinal discomfort
Serious (seek immediate care):
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Fainting or irregular heartbeat
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Swelling of the face, lips, or throat
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Sudden weight gain or swelling in ankles/feet
Precautions & Warnings
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Monitor heart rate and blood pressure regularly.
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Avoid sudden discontinuation; dose should be reduced gradually.
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Use with caution if you have diabetes, as Atenolol may mask signs of low blood sugar.
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May worsen asthma or chronic lung disease — use cautiously.
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Avoid alcohol as it can enhance dizziness or drowsiness.
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Inform your doctor if you’re pregnant or breastfeeding.
Drug Interactions
May interact with:
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Calcium channel blockers (verapamil, diltiazem) – risk of low heart rate or heart block
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Digoxin – increased risk of slow heartbeat
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Clonidine – risk of rebound hypertension if stopped abruptly
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Insulin or oral antidiabetic agents – may hide hypoglycemia symptoms
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NSAIDs – may reduce Atenolol’s blood pressure-lowering effect
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Other antihypertensives – additive effect on blood pressure lowering
Storage/Disposal
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Store below 30°C, in a cool, dry place away from direct light and moisture.
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Keep out of reach of children.
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Do not use after the expiry date on the package.
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Dispose of unused medicine safely; do not flush in toilets.
Control Drug
Quick Tips
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Take Cardiolite at the same time daily for best effect.
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Do not stop suddenly — your doctor will guide gradual tapering.
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Avoid driving or operating machinery if you feel dizzy.
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Monitor your blood pressure and pulse regularly.
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Inform your doctor before any surgery or dental procedure.
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Maintain a healthy lifestyle — reduce salt intake, exercise, and avoid smoking.
