Calaptin SR 120mg
Available Dosages
| SKU | 1190 |
|---|---|
| Generic For | Calan SR |
| Strength | 120mg |
| Manufacturer | HOECHST |
| Active Ingredient | Verapamil |
| Pack Size | Qty | Price Per Pill or Unit | Price | Cart | |
|---|---|---|---|---|---|
| 30 Tablet/s | US$ 0.18 | US$ 5.46 | |||
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| 60 Tablet/s | US$ 0.18 | US$ 10.93 | |||
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| 90 Tablet/s | US$ 0.18 | US$ 16.39 | |||
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Calaptin SR 120mg (Verapamil) – Affordable Calan SR Alternative
Calaptin SR 120mg is used as a prescription medicine to treat high blood pressure, angina, and certain types of heart arrhythmias. The active ingredient in the medicine is Verapamil, which belongs to the class of drugs known as calcium channel blockers. The class of drugs works by expanding blood vessels, allowing more blood to flow through them, and lowering blood pressure. Lowering blood pressure levels causes a significant reduction in the risk of developing cardiovascular events (mild or severe), major strokes, and myocardial infarctions.
Achieving controlled blood pressure should be part of a comprehensive cardiovascular risk management strategy, which includes diabetes management, smoking cessation, appropriate lipid control, regular exercise, and a limited sodium intake. Verapamil is also believed to act on nerve signals passing through the heart muscles that can help correct certain abnormal heart rhythms.
Precautions with Calaptin SR 120 mg
Calaptin SR 120 mg is contraindicated in patients with severe ventricular dysfunction, hypotension (less than 90mm Hg), known hypersensitivity to verapamil hydrochloride, second or third-degree AV block, sick sinus syndrome, atrial fibrillation or atrial flutter, and an accessory bypass tract. Talk to your healthcare specialist before you take Calaptin SR 120 mg if you have liver problems, kidney disease, heart condition, low blood pressure, myasthenia gravis, or are pregnant or breastfeeding.
Your doctor should also know if you are taking medication for high blood cholesterol, such as simvastatin or atorvastatin. There are other drugs as well that need to be avoided while receiving Calaptin SR medicine, as they may interact with your antihypertensive agent and cause unwanted effects. These drugs include:
- Diuretics (water tablets)
- Alpha-blockers (terazosin, prazosin) for high blood pressure and heart conditions
- Antidepressants (including herbal products, John’s wort), anxiety or psychosis
- Immunosuppressants such as sirolimus, ciclosporin, tacrolimus, everolimus
- Non-steroidal anti-inflammatory painkiller to relieve pain and reduce fever
- Cimetidine to treat indigestion or stomach ulcers
- Anticoagulants such as dabigatran to help prevent blood clot
- Rifampicin to treat tuberculosis and other types of infection.
- Almotriptan for the treatment of migraine
- Anticonvulsants such as phenobarbital, phenytoin, carbamazepine
- Anticancer drugs such as doxorubicin
- Theophylline, an asthma medicine
- Midazolam, a sedative or anesthetic
- Glibenclamide to treat certain types of diabetes
No data on using Verapamil tablets in children and adolescents is available. If you have undergone surgery requiring anesthesia, inform your healthcare expert that you are taking Verapamil tablets. Avoid excessive consumption of alcohol while taking Calaptin SR 120mg, as the effects of the alcohol may be exaggerated. The use of this antihypertensive agent slows down the elimination of alcohol from the body. Avoid drinking grapefruit juice while taking Verapamil. The medicine may enhance the effects of alcohol. The ability to drive or operate machinery may be impaired. The condition is primarily affected during the initial stages of treatment when there are alterations in the dose or when switching from one drug to another. In this case, avoid driving or operating machines.
Side effects of Calaptin SR 120 mg
Common side effects of Calaptin SR 120 mg include tremors, muscle disorders, abdominal pain, numbness, muscle weakness, joint pain, tinnitus (ringing in the ears), and a redness or burning sensation in the feet. Most of these side effects are mild and resolve within a few days of taking the medicine.
People taking Verapamil formulation may also experience serious side effects, which require immediate medical attention. Some serious side effects of the medicine include an allergic reaction (characterized by swelling of the lips, neck, and tongue) and Stevens-Johnson syndrome (a severe condition marked by blistering of the skin, eyes, mouth, and genitals).
How to use Calaptin SR 120 mg?
Calaptin SR 120 mg is available as a sustained-release tablet, which means it prolongs the medication’s release from the tablet, allowing you to receive its benefits over a longer period. Generally, it is recommended to take this medication with food and swallow the tablet whole without chewing or crushing.
High blood pressure
- For adults, the recommended dose is between 120 mg and 160 mg, taken twice daily. The dose may be increased to a maximum of 480 mg per day.
- For children, the healthcare specialist will calculate the appropriate dose of Verapamil based on the child’s body weight and the severity of the disease.
Angina
- For adults, the usual dose is between 80 and 120 mg, taken three times daily.
Abnormal heart rhythm
- The recommended dose for adults is between 40 and 120 mg, administered thrice daily.
- The recommended dose for children up to 2 years old is 40 mg of a tablet, taken twice to three times daily. The recommended dose for children two years and above is one to three 40 mg tablets, taken two to three times daily, depending on age and effectiveness.
- For the elderly, generally, the dose may be reduced if they suffer from kidney or liver disease or certain heart conditions.
What is verapamil SR 120 mg used for?
Verapamil SR 120mg (Calaptin SR 120mg) is the sustained-release formulation of verapamil hydrochloride, designed for once or twice daily dosing to treat hypertension and chronic stable angina. SR stands for sustained release — the tablet releases drug gradually over 12 hours, maintaining more consistent therapeutic levels compared to immediate-release verapamil. This reduces dosing frequency and provides smoother 24-hour blood pressure and heart rate control.
How is verapamil SR 120mg different from regular verapamil?
Verapamil SR 120mg is a sustained-release tablet that releases verapamil slowly over 8–12 hours, in contrast to immediate-release tablets which need to be taken three times daily. This extended release profile reduces blood level peaks and troughs, improving tolerability and making twice-daily or once-daily dosing feasible. SR formulations are generally preferred for hypertension management because they provide steadier blood pressure control and are more convenient for patients.
How should Calaptin SR 120mg be taken correctly?
Calaptin SR 120mg is typically taken twice daily with food — morning and evening — though some patients are prescribed it once daily depending on their response. Always swallow the tablet whole; do not crush, chew, or break it, as this destroys the sustained-release mechanism and releases the full dose at once. Consistent timing helps maintain stable therapeutic levels. Your prescriber may start you on 120 mg twice daily and adjust based on your blood pressure response.
How long does it take for verapamil SR 120mg to start working?
The sustained-release formulation of verapamil reaches peak plasma concentrations within 4–8 hours of the first dose. Blood pressure reductions become measurable within the first 1–2 days, with stable therapeutic control developing over 1–2 weeks of consistent twice-daily dosing. Because the SR tablet releases drug slowly, onset of individual dose effects is gentler than immediate-release verapamil, but the overall duration of coverage is longer — providing smoother, day-long blood pressure control.
Is verapamil SR 120mg safe for patients with atrial fibrillation?
Verapamil SR 120mg is widely used for rate control in patients with atrial fibrillation (AFib), slowing the ventricular rate by reducing AV node conduction. It is generally safe and effective for this purpose in patients with preserved left ventricular function. Caution is warranted in AFib associated with Wolff-Parkinson-White syndrome — in this setting, verapamil can accelerate conduction through accessory pathways, potentially triggering life-threatening ventricular arrhythmias. Always confirm the nature of your arrhythmia with your cardiologist.
Can verapamil SR 120mg cause constipation, and how do I manage it?
Yes — constipation is the most commonly reported side effect of all verapamil formulations, including SR 120mg, affecting up to 30% of patients. To manage this, increase dietary fibre intake (fruits, vegetables, whole grains), drink at least 8 glasses of water daily, and stay physically active where possible. Mild osmotic laxatives such as macrogol (polyethylene glycol) are considered safe alongside verapamil. If constipation is severe or persistent, speak with your doctor about dose adjustment.
How does Calaptin SR 120mg compare to Calan SR?
Calaptin SR 120mg is a direct generic equivalent of Calan SR 120mg — both contain verapamil hydrochloride 120 mg in a sustained-release formulation. They are bioequivalent, meaning the rate and extent of verapamil absorption into the bloodstream are statistically comparable. The only meaningful difference is price — branded Calan SR commands a premium in US pharmacies, while Calaptin SR provides the same therapeutic benefits at substantially lower cost, helping patients maintain compliance with their cardiac regimen.
Is Calaptin SR 120mg better than diltiazem ER for blood pressure?
Calaptin SR 120mg and diltiazem extended-release are both non-dihydropyridine CCBs effective for hypertension and rate control. Diltiazem ER is often preferred in patients with borderline cardiac function because it has a less pronounced negative inotropic effect than verapamil. Verapamil SR, however, may provide better rate control in atrial fibrillation for some patients. The choice depends on individual cardiovascular status, concomitant medications, and tolerability — particularly regarding constipation versus edema.
Can I reorder verapamil SR 120mg online without repeatedly visiting a clinic?
Yes. PremiumRxDrugs.com simplifies verapamil SR reordering — upload your prescription once, and reorder is straightforward through online system. The pharmacy has been trusted for over a decade by patients in the USA, UK, Australia, and worldwide, and carries manufacturer-sourced verapamil SR tablets at competitive prices. Discreet worldwide shipping and free shipping on eligible orders mean your cardiac medication arrives at your door without clinic visits for repeat prescriptions.
What side effects are associated with verapamil SR 120mg?
Verapamil SR 120mg commonly causes constipation, nausea, dizziness, peripheral edema, and bradycardia. The sustained-release formulation typically produces fewer peak-related side effects (such as flushing or headache) compared to immediate-release verapamil, due to its gradual drug release profile. In patients with existing conduction disorders, the drug may exacerbate first-degree AV block. Fatigue and hypotension are also possible, especially if combined with other blood pressure-lowering agents.
What are the contraindications for verapamil SR 120mg?
Verapamil SR 120mg is contraindicated in patients with severe hypotension, second- or third-degree AV block without a pacemaker, sick sinus syndrome, acute myocardial infarction with pulmonary congestion, or atrial flutter/fibrillation associated with WPW syndrome. It should not be used concurrently with IV beta-blockers or dofetilide. Patients with significant left ventricular dysfunction should use verapamil only under careful cardiology supervision due to its negative inotropic properties.
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