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home > drugs a-z list > calan (verapamil hcl) drug center
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Calan
Calcium Channel Blockers (CCBs) »
What are calcium channel blockers (CCBs) and how do they work?
Calcium channel blockers are drugs that block the entry of calcium into the muscle cells of the heart and arteries.
- The entry of calcium is critical for the conduction of the electrical signal that passes from muscle cell to muscle cell of the heart, and signals the cells to contract.
- It also is necessary in order for the muscle cells to contract and thereby pump blood.
- In the arteries, the entry of calcium into muscle cells causes contraction of the cells and thereby dilates (widens) the arteries.
- Thus, by blocking the entry of calcium, calcium channel blockers reduce electrical conduction within the heart, decrease the force of contraction (work) of the muscle cells, and dilate arteries.
- Dilation of the arteries reduces blood pressure and thereby the effort the heart must exert to pump blood.
- Combined with decr...
Calan
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Calan Drug Center
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Calan Prescribing Information: Indications & Dosage
CALAN tablets are indicated for the treatment of the following:
Angina
- Angina at rest including:
- Vasospastic (Prinzmetal's variant) angina
- Unstable (crescendo, pre-infarction) angina
- Chronic stable angina (classic effort-associated angina)
Arrhythmias
In association with digitalis for the control of ventricular rate at rest and during stress in patients with chronic atrial flutter and/or atrial fibrillation (see WARNINGS: Accessory bypass tract)
...Read the complete drug monograph for Calan »
What is Calan Prescribing Information?
Drug Description - Indications & Dosage - Side Effects & Drug Interactions - Warnings & Precautions - Contraindications - Medication Guide and More
What is Patient information?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Calan Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have any of these serious side effects:
- fast or slow heartbeats;
- feeling like you might pass out;
- fever, sore throat, and headache with a severe blistering, peeling, and red skin rash;
- feeling short of breath, even with mild exertion;
- swelling, rapid weight gain; or
- nausea, stomach pain, low fever, loss of appetite, d...
Read the complete patient information for Calan »
What is Calan Patient Information?
Possible Side Effects - Images - What Is - How Should I Take It - What If I Miss a Dose - What Should I Avoid and More
What is Consumer information?
A concise overview of the drug for the patient or caregiver from First DataBank.
Calan Consumer Information: Uses
Verapamil is used with or without other medications to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Verapamil is called a calcium channel blocker. It works by relaxing blood vessels so blood can flow more easily.
Verapamil is also used to prevent chest pain (angina). It may help to increase your ability to exercise and decrease how often you may get angina attacks. Verapamil is also used to control your heart rate if you have a fast/irregular heartbeat (such as atrial fibrillation). It helps to lower the he...
Read the complete consumer information for Calan »
What is Calan Consumer Information?
Warnings - Uses - How to Use - Side Effects - Precautions - Drug Interactions and More
Next: Drug Description
Additional Calan Information
Calan - User Reviews
Calan User Reviews
Now you can gain knowledge and insight about a drug treatment with Patient Discussions.
Here is a collection of user reviews for the medication Calan sorted by most helpful.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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