Calan is a drug that affect cardiovascular health. The action of this medicine is caused by blocking the transportation of calcium inside the smooth muscle cells, where he provides their reduction. Therefore, Calan belongs to the group of calcium antagonist. This drug dilates the coronary vessels and improves the blood flow to the heart muscle, decreases the heart rate and oxygen demand of myocardium.

The action of Calan on the cardiovascular system

It relieves the general tension of muscles, vessels and nutritional needs of tissue. The drug also acts as diuretic and reduces clotting. All this allows using Calan for the treatment of coronary insufficiency, angina, hypertonic disease, arrhythmia, etc.
This drug is available in pills with different dosages and injection solution. In the instruction you can find information on how to use Calan in different state. However, this drug can be prescribed by the specialist, as only the qualified doctor knows all the indications and contraindications of this drug. In some cases, the treatment is possible only under constant medical supervision.


Some kinds of cardiovascular pathologies, I trimester of pregnancy and lactation.

Side effects

In standard doses, this drug is well-tolerated by the patients. However, it can cause some adverse reactions.
Cardiovascular system: myocardial infarction, irregularities in the cerebral blood circulation, collapse, etc.
Digestive system: dyspepsia, sickness and hepatitis.
The side effects from endocrine, nervous and motor system are also possible. All of this indicates the diverse effect of Calan on the human body.
Knowing how this drug acts, you can imagine how serious can be an overdose. In this case, immediately get your stomach pumped and take laxatives and activated charcoal. After that, it is necessary to normalize the heart activity and tone of vessels by means of restoring calcium ion concentration. This can be achieved through the intravenous fluids of different drugs: calcium glucocinate or chloride, atropine, etc.