Prescription Required
Formulation: 24hour ER Capsule
Prescription Required
Formulation: 24hour ER Capsule
(Generic Alternative)
Select the prescribed dosage
Select the quantity to see the price.
* This price includes a dispensing fee, medical review fee, and packing fee.
Shipped and delivered directly to your doorstep
Calan SR (active ingredient: verapamil) is a prescription medication used to treat high blood pressure, certain types of chest pain, and some abnormal heart rhythms.
Calan SR is an extended-release form of verapamil. This means the medication is released slowly over time to provide a longer-lasting effect.
Calan SR is used to treat high blood pressure, also called hypertension.
High blood pressure occurs when blood pushes against the walls of the arteries with more force than normal over a long period of time. It often does not cause noticeable symptoms, but it can gradually damage the heart, blood vessels, kidneys, and other organs.
If high blood pressure is not controlled, it may increase the risk of:
Calan SR helps lower blood pressure by relaxing and widening the blood vessels. This allows blood to flow more easily and reduces the amount of work the heart must do to pump blood through the body.
Calan SR may also be used to manage chronic stable angina.
Angina is chest pain or discomfort that occurs when the heart muscle does not receive enough oxygen-rich blood.
Chronic stable angina usually occurs during physical activity, emotional stress, or other situations that make the heart work harder.
Symptoms may include:
Calan SR can help reduce the frequency and severity of angina by improving blood flow and lowering the heart’s workload.
It is generally used to help prevent angina attacks rather than to provide immediate relief during sudden chest pain.
Calan SR may be used to manage certain abnormal heart rhythms that begin above the ventricles, the lower chambers of the heart.
These abnormal rhythms are sometimes called supraventricular tachyarrhythmias.
They may cause symptoms such as:
Verapamil helps slow the electrical signals traveling through certain parts of the heart, which can reduce an abnormally fast heart rate.
Paroxysmal supraventricular tachycardia, or PSVT, is a type of abnormal heart rhythm that causes the heart to suddenly beat very fast.
Episodes may begin and end suddenly and can last from a few minutes to several hours.
Calan SR may help prevent or control certain episodes by slowing electrical conduction through the heart.
Calan SR may also be used to help control the heart rate in some people with atrial fibrillation.
Atrial fibrillation, often called AFib, is an irregular heart rhythm that begins in the upper chambers of the heart.
Instead of beating in a steady pattern, the upper chambers beat irregularly and may cause the ventricles to beat too quickly.
Verapamil helps slow the electrical signals reaching the ventricles, which can help control the heart rate.
Calan SR belongs to a group of medications called calcium channel blockers.
Calcium plays an important role in helping the heart and blood vessel muscles contract. Verapamil blocks some of the calcium from entering these muscle cells.
This produces several effects that help treat cardiovascular conditions.
Relaxes and Widens Blood Vessels
Calan SR relaxes the smooth muscles in the walls of the arteries.
When the arteries widen, blood can move through them with less resistance.
This helps lower blood pressure and makes it easier for the heart to pump blood throughout the body.
Reduces the Heart’s Workload
Verapamil can reduce how strongly the heart muscle contracts and may lower the heart rate.
This means the heart requires less oxygen to do its work.
Reducing the heart’s oxygen needs can help prevent or decrease episodes of chronic stable angina.
Slows Electrical Signals in the Heart
Calan SR also affects the electrical system that controls the heartbeat.
It slows conduction through the atrioventricular, or AV, node. The AV node helps carry electrical signals from the upper chambers of the heart to the lower chambers.
Slowing these signals can help control certain rapid or irregular heart rhythms.
Calan SR is usually taken regularly rather than only when symptoms occur.
You may not notice an immediate difference when the medication begins working, especially if it is being used for high blood pressure.
Your healthcare provider may monitor your:
Regular monitoring helps determine whether your dose is working safely and effectively.
Calan SR is designed to release verapamil slowly over an extended period.
This helps maintain a more consistent amount of medication in the body.
Because it is an extended-release product, the tablet should be taken exactly as directed. Do not crush or chew it unless your healthcare provider or pharmacist confirms that your specific tablet may be altered.
Take Calan SR exactly as prescribed by your healthcare provider.
Do not increase, decrease, or stop your dose without medical advice. Suddenly stopping treatment may cause your blood pressure, angina, or heart rhythm problem to become worse.
Tell your healthcare provider about all medications and supplements you take because verapamil can interact with many other medicines.
Contact your healthcare provider if you develop severe dizziness, fainting, a very slow heartbeat, worsening shortness of breath, swelling, or chest pain that becomes more frequent or severe.
Verapamil extended-release is a long-acting form of verapamil that is designed to release the medication slowly over about 24 hours.
Take it exactly as prescribed by your healthcare provider. The dose and timing may vary depending on the condition being treated and the specific extended-release product you are using.
Verapamil extended-release is commonly taken with food.
Taking it with food may help the medication absorb more consistently and may also reduce stomach upset.
Try to take your dose at the same time every day so that a steady amount of medication stays in your body.
Swallow the extended-release capsule whole with water.
Do not crush or chew it, because doing so may release too much medication at once and increase the risk of side effects.
Some verapamil extended-release products may have different instructions about opening the capsule or dividing the dose. Ask your healthcare provider or pharmacist before altering the capsule in any way.
A common starting dose for some verapamil extended-release products is 180 mg taken once daily.
Depending on the product and the condition being treated, it may be taken in the morning or at bedtime.
Your healthcare provider may choose a different starting dose based on factors such as:
Your healthcare provider may gradually increase or decrease your dose depending on how well the medication is working and whether you experience side effects.
Dose changes are usually made carefully because verapamil can affect both blood pressure and heart rate.
Do not change your dose on your own.
Verapamil works best when taken consistently.
Continue taking it every day even if you feel well. High blood pressure often does not cause noticeable symptoms, so you may not feel different even when the medication is working.
If you are taking verapamil for angina or a heart rhythm problem, regular use can help keep symptoms under control.
Verapamil begins working after you start taking it, but the full effect may take several days.
For high blood pressure, it may take about a week or longer before the full benefit is seen.
Your healthcare provider may check your blood pressure or heart rate after treatment begins to see how well the medication is working.
If you miss a dose, take it when you remember unless it is close to the time for your next dose.
If your next dose is approaching, skip the missed dose and continue with your regular schedule.
Do not take two doses at the same time to make up for a missed dose.
Do not stop taking verapamil without speaking with your healthcare provider.
Stopping treatment may cause your blood pressure to rise again or may allow chest pain or heart rhythm problems to return.
If verapamil needs to be discontinued, your healthcare provider will tell you how to stop it safely.
Your healthcare provider may monitor your:
In some cases, additional tests may be needed, especially if you have heart, liver, or kidney problems.
Contact your healthcare provider if your symptoms do not improve, become worse, or you develop side effects that are difficult to manage.
Seek medical attention if you experience symptoms such as:
Take verapamil exactly as prescribed and do not take more than recommended.
Tell your healthcare provider about all prescription medicines, over-the-counter products, vitamins, and supplements you use because verapamil can interact with many other medications.
Always follow the instructions for your specific verapamil extended-release product, since different formulations may have different dosing and administration directions.
Calan SR (Verapamil ER) is available in the following forms and strength:
Calan SR may lower blood pressure, especially when treatment is first started or the dose is increased.
The risk may be greater if you are dehydrated or have certain heart conditions. Your healthcare provider may recommend checking your blood pressure regularly.
Contact your healthcare provider if you experience severe dizziness, weakness, fainting, or lightheadedness.
Calan SR can interact with several other medications, including beta blockers, digoxin, and other medicines that affect blood pressure or heart rhythm.
Tell your healthcare provider about all prescription medicines, over-the-counter products, vitamins, and supplements you take.
Do not start, stop, or change another medication without checking with your healthcare provider or pharmacist.
Calan SR may not be suitable for people with certain heart rhythm or electrical conduction problems.
These may include sick sinus syndrome or second- or third-degree atrioventricular (AV) block, unless a functioning pacemaker is present.
Tell your healthcare provider about any heart condition you have before starting treatment.
Verapamil may cause dizziness, lightheadedness, or fainting, especially when treatment is started or the dose is changed.
Avoid driving, operating machinery, or doing activities that require full alertness until you know how the medication affects you.
Stand up slowly from a sitting or lying position to reduce the risk of dizziness.
Tell your healthcare provider if you have liver disease.
Verapamil is mainly processed by the liver, so reduced liver function can cause the medication to stay in the body longer. Your dose may need to be adjusted and you may require closer monitoring.
Tell your healthcare provider if you have kidney disease or reduced kidney function.
Although kidney problems do not always require a dose adjustment, your healthcare provider may monitor you more closely, especially if you have other medical conditions or take additional medications.
Calan SR affects the electrical signals in the heart and can slow the heart rate.
In some people, it may cause an abnormally slow heartbeat or worsen certain heart rhythm problems.
Contact your healthcare provider if you develop fainting, severe dizziness, unusual weakness, or a very slow heartbeat.
Grapefruit and grapefruit juice may affect how verapamil is processed in the body and could increase the amount of medication in your bloodstream.
Ask your healthcare provider or pharmacist whether you need to limit or avoid grapefruit while taking Calan SR.
Tell your healthcare provider if you are pregnant, planning to become pregnant, or breastfeeding.
Verapamil may be used during pregnancy when the expected benefits outweigh the possible risks. It can also pass into breast milk, so your healthcare provider will help determine whether breastfeeding is appropriate during treatment.
Constipation is a common side effect of verapamil.
Drinking enough fluids, eating fiber-rich foods, and staying physically active may help, if appropriate for you.
Contact your healthcare provider if constipation becomes severe or persistent.
Verapamil may cause digestive symptoms in some people, including nausea or stomach discomfort.
If you have a history of digestive problems, including severe constipation, tell your healthcare provider before starting Calan SR. Contact them if your symptoms become worse during treatment.
Calan SR can interact with certain medications, including beta blockers, digoxin, and other drugs that affect blood pressure or heart rhythm. Tell your healthcare provider about all prescription medicines, over-the-counter products, vitamins, and supplements you take. Do not start, stop, or change another medication without checking with your healthcare provider or pharmacist.
Talk to your healthcare provider before taking Calan SR if you are pregnant, planning to become pregnant, or breastfeeding. Your healthcare provider will consider the possible benefits and risks before deciding whether verapamil is appropriate for you. Verapamil can pass into breast milk, so breastfeeding should also be discussed with your healthcare provider.
Calan SR begins working after you start taking it, but it may take about a week or longer to see its full blood pressure-lowering effect. Your healthcare provider may check your blood pressure regularly and adjust your dose based on how well Calan SR is working and how well you tolerate the medication.
| Generic name: | Verapamil ER |
|---|---|
| Formulation: | 24hour ER Capsule |
| Strength(s): | 120mg, 180mg, 240mg |
| Quantities Available: | 60, 90 |
Our online Canadian Pharmacy is known for high standards of quality, safety, and efficiency when it comes to medications.
Our pharmacy offers lower prices on prescription drugs compared to traditional pharmacies.
When ordering Calan SR (verapamil ER) from a Canadian pharmacy, you can typically purchase up to a 90-day supply at one time, which is common for prescription medications to ensure adequate management of chronic conditions without frequent refills.
Here’s what you need to know:
Dosage and Quantity: Calan SR is available in various dosages, such as 120 mg, 180 mg, and 240 mg capsules, typically taken once daily. For a 90-day supply, this means you would order 90 capsules (90 days x 1 capsule per day) based on the prescribed dosage.
Yes, we sell verapamil ER. You can enjoy low prices on your medication by ordering from our website. To place an order, you will need a valid prescription from your healthcare provider, which we require to dispense the medication safely and accurately. You can submit your prescription by mail, fax, or by uploading it through your online account.
Yes, we ship Calan SR (verapamil ER) to both the United States and Puerto Rico.
Watch how Online Pharmacies Canada is helping customers save money on their medications.
Online Pharmacies Canada has provided information from third parties intended to increase awareness and does not contain all the information about Calan SR (Verapamil ER). Talk to your doctor or other qualified medical practitioners for medical attention or advice, or if you have any concerns about Calan SR (Verapamil ER).
REVIEWS