What are vasoconstrictive medicines?
Vasoconstrictive drugs are medicines that cause the blood vessels of the body. These containers naturally have the ability to relax and download, because through them blood pumps, and restrictive drugs simply cause blood vessels to be narrower than they would otherwise be. Medicines of this class can be useful for people with conditions such as shock and low blood pressure. Vasoconstriction drugs, also called vasopressors, are divided into two main groups, which are analogues of vasopressin and agonists of alpha-adrenoreceptor.
In a person with a healthy circulatory system, the blood draws veins and arteries in the pattern of the heart rhythm, which alternates high pressure with low pressure. To meet pressure changes, blood vessels are covered with muscle, allowing the channel to expand and download. Vasoconstriction is a scientific term for the contraction of blood vessels, which reduces the inner diameter of the hollow container. As well as the crust vessels that you will learn about the variations of natural blood pressure, they can also be reduced in response to environmental factors such as cold, stress andEven nicotine of cigarette smoke.
Some health conditions cause problems with effective blood movement around the body. For example, shock is a serious condition that can be fatal. Hypotension, which is low blood pressure, can also be dangerous for health. Vasoconstrictor of drugs may therefore be a useful tool in the treatment of these conditions. Sometimes the effect of the drug can be supplemented by the administration of another inotrop class, which increases the strength of cardiac contraction.
Doctors are available for two vasoconstrictive drugs. One type of drugs are medicines that adhere to certain receptors on the muscle of blood vessels to prevent them from expansion vessel. These receptors are called alpha-adrenoreceptors, and therefore drugs are called agonists of alpha-adrenoreceptor. Examples of specific drugs in this group are methoxamine, tetrahydralazine and clonidine. Possible side effects of this group of drugs include ABNORmal rhythm of the heart, headache and fluid retention.
The second main type of vasoconstrictor is a molecule similar to the natural hormone called vasopressin. This hormone and its copies present in medicinal products block receptors in a muscle called V1 receptors, thus preventing blood vessel expansion. A significant effect of these hormonal analogues and vasoconstriction is the loss of water from the body. Possible side effects include headache, feeling of nausea and lack of Electolyte due to excessive water loss.