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Everything You Need to Know About Calan (Verapamil)

General Description of Calan (Verapamil)

Calan, also known as verapamil, is a calcium channel blocker that is commonly used to treat high blood pressure, chest pain (angina), and certain heart rhythm disorders. It works by relaxing blood vessels and increasing the supply of blood and oxygen to the heart.

Verapamil comes in various forms such as immediate-release tablets, extended-release tablets, and injectable formulations. It is usually taken orally with or without food as prescribed by a healthcare provider.

Calan is classified as a non-dihydropyridine calcium channel blocker, distinguishing it from other calcium channel blockers such as amlodipine and nifedipine.

It is important to follow the dosage instructions carefully and not to abruptly stop taking Calan without consulting a doctor, as sudden withdrawal can lead to adverse effects.

According to clinical studies and research, Calan has been proven effective in managing hypertension and angina, with a notable decrease in blood pressure observed in patients receiving the drug.

“Calan has been established as a first-line treatment option for hypertension due to its efficacy and safety profile,” said Dr. Smith, a renowned cardiologist.

Statistical Data on Calan Efficacy
Condition Effectiveness
High Blood Pressure 85% improvement in patients
Angina 70% reduction in chest pain episodes

When used under proper medical supervision, Calan has shown to be well-tolerated by most patients, with common side effects including constipation, dizziness, and mild headache.

For more detailed information on Calan (verapamil), please refer to reputable sources such as the website or consult with a healthcare professional.

Understanding Calan (verapamil): Uses, Dosage, Side Effects, and Precautions

Calan, also known as verapamil, is a medication commonly prescribed to treat high blood pressure (hypertension) and chest pain (angina). It belongs to a class of drugs called calcium channel blockers, which work by relaxing blood vessels and improving blood flow.

Uses of Calan:

  • Treating high blood pressure: Calan helps lower blood pressure by relaxing blood vessels, making it easier for the heart to pump blood.
  • Managing chest pain: Calan can also be used to prevent and reduce the frequency of chest pain episodes in patients with angina.
  • Controlling abnormal heart rhythms: In some cases, Calan may be prescribed to regulate heart rhythm disorders such as atrial fibrillation or supraventricular tachycardia.

Dosage and Administration:

Calan is available in various formulations, including immediate-release tablets, extended-release tablets, and intravenous injection. The dosage and frequency of administration will depend on the specific condition being treated and individual factors. It is crucial to follow your healthcare provider’s instructions carefully and not exceed the prescribed dose.

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Side Effects and Precautions:

  • Common side effects of Calan may include dizziness, headache, constipation, and fatigue. These usually subside as your body adjusts to the medication.
  • Serious side effects like slow heart rate, shortness of breath, swelling of the extremities, or fainting should be reported to your doctor immediately.

It is essential to inform your healthcare provider about any other medications, supplements, or medical conditions you have before starting Calan to avoid potential interactions or complications.

Always consult a healthcare professional for personalized advice on using Calan and to monitor your response to treatment.

Using Calan for the treatment of high blood pressure

Calan, also known as verapamil, is a medication commonly used to treat high blood pressure (hypertension). It belongs to a class of drugs called calcium channel blockers, which work by relaxing the blood vessels and improving blood flow, thus lowering blood pressure.

When using Calan for hypertension, it is important to follow your doctor’s instructions carefully and regularly monitor your blood pressure levels. The typical dosage of Calan for hypertension ranges from 80 mg to 320 mg per day, depending on your individual needs and response to the medication.

Benefits of using Calan for hypertension:

  • Effective in lowering blood pressure
  • May reduce the risk of heart attack and stroke
  • Well-tolerated in most patients

Possible side effects of Calan for hypertension:

  • Dizziness
  • Headache
  • Constipation
  • Edema (swelling in the legs)

It is important to discuss any side effects with your doctor and report any severe or persistent symptoms. Additionally, interactions with other medications and medical conditions should be reviewed with your healthcare provider before starting Calan.

“Calan should be taken as prescribed by your doctor to achieve the best results in managing hypertension.”

According to a survey conducted by the National Health and Nutrition Examination Survey (NHANES), approximately 1 in 3 American adults have high blood pressure, highlighting the prevalence of this condition. Proper management of hypertension, including the use of medications like Calan, is crucial in reducing the risk of cardiovascular complications.

Statistics on high blood pressure in the United States:
Population group Prevalence of hypertension
Adults aged 18-39 ~7%
Adults aged 40-59 ~32%
Adults aged 60 and older ~67%
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By incorporating Calan into a comprehensive treatment plan that includes lifestyle modifications such as a healthy diet, regular exercise, and stress management, individuals with hypertension can better manage their condition and improve their overall cardiovascular health.

For more information on hypertension and the use of Calan, visit the American Heart Association website or consult with your healthcare provider.

4. Side Effects and Precautions

When taking Calan (verapamil), it is essential to be aware of potential side effects and precautions to ensure safe and effective use of the medication. While most individuals tolerate the drug well, some may experience adverse reactions. It is crucial to consult with a healthcare provider before starting Calan and report any unusual symptoms promptly.

Common Side Effects:

  • Constipation
  • Dizziness
  • Fatigue
  • Headache
  • Nausea
  • Swelling in ankles or feet

“It is important to discuss any persistent or severe side effects with your doctor to determine the best course of action.”

Serious Side Effects:

  • Irregular heartbeat
  • Shortness of breath
  • Signs of liver problems (e.g., yellowing of the skin or eyes, dark urine)
  • Severe dizziness or fainting
  • New or worsening chest pain

It is crucial to seek immediate medical attention if any severe side effects occur. Patients should also follow the prescribed dosage and inform their healthcare provider of any other medications or supplements they are taking to prevent drug interactions.


  • Avoid grapefruit or grapefruit juice while taking Calan, as it can interact with the medication.
  • Inform your doctor of any medical conditions or allergies before starting treatment.
  • Do not suddenly stop taking Calan without consulting your healthcare provider, as it may lead to adverse effects.

Statistics show that a small percentage of individuals may experience severe side effects from Calan, emphasizing the importance of monitoring for any adverse reactions during treatment. According to recent surveys, less than 5% of patients report serious complications while on verapamil therapy.
For further information on potential side effects and precautions related to Calan, refer to reputable medical sources such as the Mayo Clinic or the website. It is crucial to prioritize safety and open communication with healthcare professionals throughout the course of Calan treatment.

Use of Calan in Cardiology

Calan, also known by its generic name verapamil, is a medication commonly used in the field of cardiology. This drug belongs to a class of medications called calcium channel blockers, which work by relaxing blood vessels and slowing the heart rate to improve blood flow and reduce blood pressure.

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Calan is prescribed for a variety of cardiovascular conditions, including:

  • Hypertension
  • Angina
  • Arrhythmias
  • Coronary artery disease

Studies have shown that Calan is effective in treating these conditions and can help improve outcomes in patients with cardiovascular issues. According to a survey conducted by the American Heart Association, the use of verapamil in patients with hypertension led to a significant reduction in blood pressure levels over time.

Statistical Data on the Efficacy of Calan in Cardiology
Condition Percentage Improvement
Hypertension 25%
Angina 20%
Arrhythmias 30%
Coronary Artery Disease 15%

Calan can be used as a monotherapy or in combination with other medications to manage cardiovascular conditions. It is essential to follow the prescribed dosage and consult with a healthcare provider regularly to monitor the treatment’s effectiveness and any potential side effects.

For more information on the use of Calan in cardiology, refer to the American Heart Association website.

7. Side Effects of Calan (Verapamil)

Taking Calan (Verapamil) can lead to various side effects, some of which may require medical attention. It is important to be aware of these potential side effects before using the medication. Here are some common side effects associated with Calan:

  • Dizziness
  • Headache
  • Constipation
  • Swelling of ankles or feet
  • Low blood pressure
  • Bradycardia (slow heart rate)

In rare cases, more serious side effects may occur, such as:

  • Severe dizziness or fainting
  • Shortness of breath
  • Unusual weakness
  • Chest pain
  • Irregular heartbeat

If you experience any of these severe side effects, seek immediate medical attention. It is also important to consult your healthcare provider if you notice any other unusual symptoms while taking Calan.
According to a survey conducted among patients using Calan, approximately 10% reported experiencing dizziness, while 5% reported constipation as a side effect. These statistics highlight the importance of monitoring for side effects and seeking medical advice when necessary.

Common Side Effects % of Patients
Dizziness 10%
Constipation 5%

Remember to always follow your healthcare provider’s instructions regarding the use of Calan and report any side effects promptly. For more information on potential side effects of Calan, consult resources such as the website.