Cordilox SR (Verapamil Hydrochloride)

Complete patient guide for uses, dosage, side effects, and safety information

Prescription Required

Quick Facts

Generic Name
verapamil hydrochloride
Drug Class
calcium channel blocker
Used For
high blood pressure and angina
How Taken
oral tablet, usually once or twice daily

What Is Cordilox SR Used For?

Cordilox SR is a medication that helps manage high blood pressure and relieve chest pain associated with angina.

Primary Uses

It is primarily used to treat hypertension (high blood pressure) and angina (chest pain).

How It Works

Cordilox SR works by relaxing blood vessels, allowing more blood and oxygen to reach the heart while lowering blood pressure.

Good to know: Cordilox SR is not considered addictive.

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How to Take Cordilox SR

It is important to follow your doctor's instructions on how to take Cordilox SR.

Dosage Instructions

The usual dosage is once daily, but it may be prescribed to be taken twice daily. Always follow your doctor's recommendations.

What If You Miss a Dose?

If you miss a dose, take it as soon as you remember. If it's almost time for your next dose, skip the missed dose. Do not take a double dose.

Important: Never double the dose to make up for a missed one.

Available Tablet Strengths

180mg
180mg Tablet Old rose, Oval • KNOLL SR 180
240mg
240mg Tablet Light green, Oblong • SR

Side Effects

Like all medications, this medicine can cause side effects. Most are mild and temporary, but some require medical attention.

Common Side Effects

These side effects occur relatively frequently and usually don’t require emergency care:

  • constipation
  • dizziness
  • light-headedness
  • nausea
  • upset stomach
  • headache
  • tiredness
  • flushing

Seek immediate medical attention if you experience:

  • chest pain
  • fainting
  • irregular heartbeat
  • shortness of breath (with swelling of feet and legs)
  • fever
  • upper stomach pain
  • severe skin reactions

Important Warnings

There are important considerations to keep in mind before using Cordilox SR.

Who Should Not Take Cordilox SR

Do not use Cordilox SR if you are allergic to verapamil hydrochloride or any of its ingredients, have certain heart conditions, low blood pressure, or if the packaging is damaged.

Medical Conditions to Discuss

Discuss with your doctor if you have heart problems, circulatory diseases, liver or kidney issues, or neuromuscular conditions.

Pregnancy and Breastfeeding

Inform your doctor if you are pregnant, planning to become pregnant, or breastfeeding, as Cordilox SR may affect your baby.

Drug Interactions

Certain medications may interact with Cordilox SR, affecting its effectiveness.

Grapefruit interaction: Avoid grapefruit and its juice while taking Cordilox SR, as it may increase blood levels of the medication.

  • Beta-blockers (e.g., atenolol, propranolol)
  • Ivabradine
  • Digoxin
  • Medicines for irregular heartbeat (e.g., quinidine, amiodarone)
  • Statins (e.g., atorvastatin)
  • Direct Oral Anticoagulants (e.g., dabigatran)
  • Aspirin
  • Colchicine
  • St. John's Wort
  • Phenytoin
  • Cyclosporin
  • Erythromycin

Alcohol & Driving

Be cautious with alcohol consumption and operating vehicles while on Cordilox SR.

Alcohol

Avoid alcohol as it may worsen dizziness and light-headedness.

Driving and Operating Machinery

Be careful when driving or using machinery until you know how Cordilox SR affects you, as it may cause dizziness or tiredness.

Storage

Store Cordilox SR below 25°C in a cool, dry place, away from moisture and heat. Keep out of reach of children.

Overdose Information

If you suspect an overdose, seek immediate medical attention. Symptoms may include difficulty breathing, slow heartbeat, or fainting.

Frequently Asked Questions

Cordilox SR is designed for sustained release, allowing it to work over an extended period, typically providing relief within hours.

Yes, it is recommended to take Cordilox SR with food.

No, Cordilox SR is not considered addictive.

Do not stop taking Cordilox SR abruptly without consulting your doctor, as it may worsen your condition.

It is advised to avoid alcohol while taking Cordilox SR, as it may increase dizziness.

Weight gain is not commonly reported as a side effect of Cordilox SR.

Elderly patients should discuss their health conditions with their doctor before taking Cordilox SR.

If you miss a dose, take it as soon as you remember unless it's almost time for your next dose. Do not double up.

Important Disclaimer

This information is intended for general educational purposes only and should not be considered medical advice. Always consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.

If you think you may have a medical emergency, call your doctor or emergency services immediately.

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