Only Available By Prescription
Top brand choice
| Strength | Pack Size | Qty | |
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Strength
240mg
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Top Generic choice
| Strength | Pack Size | Qty | |
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Strength
120mg
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Strength
180mg
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Strength
240mg
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We guarantee the lowest price on all of our prescription products. If you find your medications cheaper at any other recognized licensed mail order pharmacy, we will not only match their price, we will beat it by 25% of the difference. It is our 125% price match guarantee!
Example: If you find a product on Canada Drugs Direct for $50.00 and find the same product for $40.00 at another mail order pharmacy, we will provide you with a $12.50 discount, bringing your total to $37.50.
To get the discount please make sure to mention the price match to the customer service team when they call to collect payment for your order. Or call toll free at 1-888-904-8467 to place the order through the phone.
Terms & Conditions of Program
A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.
The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.
Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.
Calan SR is a calcium channel blocker used to manage high blood pressure, which may help reduce the risk of heart attacks and strokes. It works by relaxing the blood vessels and slowing down the heartbeat, which makes it easier for the heart to pump blood. This medicine is part of a group of drugs called calcium channel blockers and comes in an extended-release tablet.
| Fact Table | |
| Formula | C27H38N2O4 |
| License | US FDA |
| Bioavailability | 20–35% |
| Legal status | Prescription only (Rx-only) |
| Chemical Name | (RS)-2-(3,4-dimethoxyphenyl)-5-{[2-(3,4-dimethoxyphenyl)ethyl](methyl)amino}-2-isopropylvaleronitrile |
| Elimination half-life | 4.5–12 hours (SR formulation extends duration) |
| Dosage (Strength) | 180 mg, 240 mg, 360 mg sustained-release tablets |
| Pregnancy | Category C (risk cannot be ruled out) |
| Brands | Calan SR, Isoptin SR, Verelan, Covera-HS |
| Protein binding | 90% |
| PubChem CID | 2520 |
| MedlinePlus | a684027 |
| ChEBI | 10118 |
| ATC code | C08DA01 |
| DrugBank | DB00661 |
| KEGG | D08657 |
| Routes of administration | Oral (tablet, SR tablet), IV (hospital setting) |
Calan SR is taken by mouth, usually with food. Swallow the tablets whole—don’t crush or chew them. Healthcare providers usually start adults with a dose of 180 mg in the morning, but some people, like older adults or those who are smaller, might start with 120 mg. Your healthcare provider may increase your dose to 240 mg or 360 mg per day if needed. Only take the amount your healthcare provider tells you, and don’t stop taking it suddenly on your own.
Calan SR contains the active ingredient Verapamil.
Avoid taking or using this medication if any of the following apply:
The most common side effects of Calan SR include constipation, dizziness, nausea, headache, and low blood pressure. Some people may also experience fatigue, swelling, or a slow heart rate. These effects are generally mild and may improve with time or dosage adjustments. Rarely, elevated liver enzymes or a type of bowel blockage called paralytic ileus may occur.
More serious side effects like heart rhythm problems (such as AV block or bradycardia), congestive heart failure, or fainting are uncommon but possible, especially in those with preexisting heart issues. Rash, flushing, and skin reactions like Stevens-Johnson syndrome have also been reported in rare cases. Other infrequent effects may include vision changes, increased urination, or breast changes. Let your healthcare provider know if you notice any unusual or serious symptoms while taking Calan SR.
Exceptional Customer Service
We pride ourselves on delivering excellent customer service with as much accessibility as possible.
If you have any questions at all, or would like to place an order, you are encouraged to contact us by toll-free
phone 1-888-904-8467 or email info@canadadrugsdirect.com.
Top Safety and Quality
Canada Drugs Direct employs dedicated, professional licensed pharmacists to ensure that each and every order is reviewed before it is dispensed for the safety and health of our customers. At CanadaDrugsDirect.com, your health is our top priority.
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