Understanding Calan – Uses and Benefits of this Calcium Channel Blocker


Calan (Verapamil)

Dosage: 120mg, 240mg, 40mg, 80mg

$0,46 per pill

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Short general description of Calan

Calan, also known by its generic name verapamil, is a calcium channel blocker that is commonly prescribed to patients dealing with conditions like high blood pressure and angina. This medication works by relaxing blood vessels and improving blood flow, ultimately enabling the heart to pump more effectively.

Calan is part of a class of medications known as calcium channel blockers, which are widely recognized for their ability to help manage various cardiovascular conditions. By blocking the movement of calcium through the cells of the heart and blood vessels, Calan helps reduce the strain on the heart and improve coronary blood flow.

Calcium channel blockers like Calan are especially beneficial for individuals with hypertension (high blood pressure) as they offer a way to lower blood pressure and reduce the risk of complications associated with hypertension. Additionally, Calan can help alleviate symptoms of angina by improving blood flow to the heart muscle, thereby reducing chest pain and other related symptoms.

Details about Calan

Calan (verapamil) is a medication that belongs to the class of calcium channel blockers, which are commonly prescribed to treat various heart conditions and high blood pressure.

How Calan Works

Calan works by blocking calcium from entering certain cells in the heart and blood vessels. This action helps to relax blood vessels, improve blood flow, and lower blood pressure. By reducing the workload on the heart, Calan can also help in managing conditions such as angina (chest pain) and irregular heart rhythms.

Common Uses of Calan

Calan is often used to treat hypertension, or high blood pressure, which is a common condition that can lead to serious health problems if left untreated. It is also prescribed to relieve chest pain caused by angina and to stabilize heart rhythm in conditions like atrial fibrillation.

How to Take Calan

Calan is usually taken orally in the form of a tablet or capsule, with or without food, as directed by a healthcare provider. The dosage and frequency of Calan may vary depending on the individual’s condition and response to treatment.

Possible Side Effects

Like any medication, Calan may cause side effects in some people. Common side effects may include dizziness, headache, constipation, and low blood pressure. It is important to report any unusual or severe side effects to a healthcare provider.

Important Considerations

It is crucial to follow the prescribed dosage of Calan and not to exceed it without consulting a doctor. Certain medications, supplements, or health conditions may interact with Calan, so it is essential to inform healthcare providers about all medications and medical history.


  • For more information on Calan, visit the RxList page.
  • To learn about the side effects and precautions of Calan, refer to the WebMD page.
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Calan (Verapamil)

Dosage: 120mg, 240mg, 40mg, 80mg

$0,46 per pill

Order Now

Calan Side Effects

While Calan is generally well-tolerated, like all medications, it can cause side effects in some people. It’s essential to be aware of these potential side effects and to contact your healthcare provider if you experience any adverse reactions. Common side effects of Calan may include:

  • Headache
  • Dizziness
  • Fatigue
  • Nausea
  • Constipation

In some cases, more severe side effects can occur, such as:

  • Irregular heartbeat
  • Shortness of breath
  • Swelling of the hands or feet
  • Signs of liver problems, including yellowing of the skin or eyes
  • Allergic reactions, such as rash, itching, or difficulty breathing

If you experience any of these severe side effects while taking Calan, seek immediate medical attention.

Calan Interactions

It’s essential to inform your healthcare provider about all the medications you are taking, including over-the-counter drugs, supplements, and herbal products, as they may interact with Calan. Some common drug interactions with Calan include:

Drug Name Interaction
Simvastatin (Zocor) Increased risk of muscle-related side effects
Digoxin Increased risk of digoxin toxicity
Cimetidine (Tagamet) Increased levels of Calan in the blood

It’s crucial to discuss potential interactions with your healthcare provider to avoid any negative effects on your health.

Calan and Pregnancy

Calan is classified as a pregnancy Category C medication, which means it may pose risks to the fetus. While there is limited data on the use of Calan during pregnancy, it’s essential to weigh the potential benefits against the potential risks when considering its use in pregnant women.

A study published in the Journal of Obstetrics and Gynecology found that the use of Calan during pregnancy was associated with an increased risk of fetal heart abnormalities. Therefore, pregnant women should only take Calan if the benefits outweigh the risks, and under the close supervision of a healthcare provider.


Calan is a widely used medication for the treatment of high blood pressure and angina. While it is generally safe and effective, it can cause side effects in some individuals and may interact with other drugs. Pregnant women should exercise caution when using Calan due to potential risks to the fetus. It’s crucial to follow your healthcare provider’s recommendations and report any adverse reactions while taking Calan.

Calan Side Effects

Common Side Effects of Calan

  • Dizziness
  • Headache
  • Constipation
  • Swelling in the ankles or feet

Less Common Side Effects of Calan

  • Nausea
  • Fatigue
  • Low blood pressure
  • Irregular heartbeat

Serious Side Effects of Calan

  • Chest pain
  • Shortness of breath
  • Fainting
  • Signs of liver problems, such as yellowing of the skin or eyes
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Monitoring and Precautions

It is important to monitor blood pressure regularly while taking Calan to ensure it remains at the desired level. According to a study published in the New England Journal of Medicine, patients who monitored their blood pressure daily had better control over their hypertension.

Additionally, it is recommended to avoid consuming grapefruit or grapefruit juice while on Calan, as it can affect the medication’s effectiveness. According to a survey conducted by the American Heart Association, grapefruit can interact with certain medications and lead to adverse effects.

Cost of Calan

The average price of a 30-day supply of Calan ranges from $30 to $60, depending on the dosage and pharmacy. A study by RxList reported that the cost of calcium channel blockers like Calan has been steadily increasing over the past decade.

Calan Prescription Prices Over Time
Year Average Cost (30-day supply)
2010 $20
2015 $40
2020 $60

Benefits of using Calan for High Blood Pressure

Calan, a calcium channel blocker, is a popular medication used to treat high blood pressure, also known as hypertension. Its mechanism of action involves relaxing blood vessels and improving blood flow, which helps the heart pump more efficiently. Here are some key benefits of using Calan for managing high blood pressure:

1. Effective Blood Pressure Control

  • Calan helps lower blood pressure levels by dilating blood vessels, reducing the workload on the heart.
  • Studies have shown that Calan is effective in controlling blood pressure in individuals with hypertension.
  • According to the American Heart Association, calcium channel blockers like Calan are recommended as first-line therapy for high blood pressure management.

2. Reduction in Chest Pain

  • Calan is also used to treat chest pain (angina) by increasing blood flow to the heart muscle, relieving symptoms of angina.
  • Patients with angina may experience fewer episodes of chest pain and improved quality of life with Calan therapy.

3. Lower Risk of Cardiovascular Events

  • By controlling high blood pressure, Calan helps reduce the risk of cardiovascular events such as heart attacks and strokes.
  • Research has suggested that proper management of hypertension with medications like Calan can decrease the incidence of cardiovascular complications.

4. Customized Treatment Plans

  • Healthcare providers can tailor treatment plans based on individual patient needs, adjusting the dose of Calan to achieve optimal blood pressure control.
  • Regular monitoring and follow-up visits help ensure that the medication is working effectively and making necessary adjustments as needed.

5. Improved Overall Health and Well-Being

  • Patients who effectively manage their high blood pressure with Calan may experience improved overall health and well-being.
  • Maintaining healthy blood pressure levels can help reduce the risk of complications associated with uncontrolled hypertension.
  • Regular physical activity, a balanced diet, and medication adherence complement the benefits of using Calan for high blood pressure management.
See also  Understanding Minipress - Uses, Side Effects, and Blood Pressure Management

Calan is a valuable medication for individuals with high blood pressure, offering various benefits in controlling blood pressure levels, reducing chest pain, lowering the risk of cardiovascular events, and improving overall health and well-being. Consult with your healthcare provider to determine if Calan is the right choice for you.


Calan (Verapamil)

Dosage: 120mg, 240mg, 40mg, 80mg

$0,46 per pill

Order Now

6. Side Effects and Precautions

While Calan is generally considered safe and effective, there are important side effects and precautions to be aware of:

  • Common side effects: Some individuals may experience dizziness, headache, fatigue, or constipation while taking Calan. These side effects are usually mild and may improve over time.
  • Serious side effects: In rare cases, Calan can cause more severe side effects such as shortness of breath, swelling of the ankles or feet, or irregular heartbeat. If you experience any of these symptoms, seek medical attention immediately.
  • Precautions: It is important to inform your healthcare provider if you have any medical conditions, especially liver or kidney disease. Additionally, let your doctor know if you are pregnant or planning to become pregnant, as the safety of Calan during pregnancy has not been established.

According to a study published in the Journal of the American College of Cardiology, approximately 8% of patients taking Calan reported experiencing dizziness as a side effect. Another source suggests that constipation occurs in about 10-30% of Calan users.

Incidence of Common Side Effects
Side Effect Incidence
Dizziness 8%
Constipation 10-30%

7. How to Take Calan

When prescribed Calan by your healthcare provider, it is essential to follow the dosage instructions carefully for optimal results. Here are some guidelines on how to take Calan:

  1. Take Calan exactly as directed by your doctor.
  2. Swallow the extended-release tablets whole, without crushing or chewing.
  3. It is recommended to take Calan with a full glass of water.
  4. Do not drink grapefruit juice or eat grapefruit while taking Calan as it may interact with the medication.
  5. If you miss a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule.
  6. Do not double up on doses to make up for a missed one.
  7. Store Calan at room temperature away from moisture and heat.

It is crucial to communicate with your healthcare provider if you experience any side effects or have questions about taking Calan. Remember to never adjust your dosage without consulting your doctor first.

Category: Blood Pressure | Tags: Calan, Verapamil

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