Abstract
Dipyridamole has been on the pharmaceutical market since 1959 and, as a pyrimidyl-pyrimidine compound, has a variety of mechanisms of action. The very first action of dipyridamole was its antianginal effect. In subsequent years, attention was drawn to the antiplatelet properties of dipyridamole, which are related to inhibition of platelet phosphodiesterase as well as to blocking adenosine transport. Another important property of dipyridamole is its effect on the deformability of red blood cells, thereby improving microcirculation. Dipyridamole affects changes in the dynamics of platelet activity and vascular reactivity and causes improvement of cerebral perfusion. Due to its pronounced antiplatelet properties, the drug has been widely studied for the prevention of ischemic strokes and transient ischemic attacks, both as monotherapy and in combination with other drugs. Unlike other platelet antiaggregants, dipyridamole does not have a damaging effect on mucous membranes. Its antiplatelet effect is not accompanied with inhibition of cyclooxygenase activity and reduction of prostacyclin synthesis. In the treatment of cerebral circulation disorders, dipyridamole can be used to control the antithrombotic effect by selecting the optimal dose of the drug. Dipyridamole has antioxidant properties, enhances NO-mediated pathways, has indirect anti-inflammatory effects via adenosine and prostaglandin-2 as well as direct anti-inflammatory effects and several other effects. Dipyridamole is considered a safe drug based on decades of clinical experience. Its side effects are usually limited and transient. Given the diverse effects of dipyridamole, it can be used for a wide range of pathologies other than thrombosis prevention. Data on the efficacy and safety of dipyridamole in various diseases of the neurological spectrum are presented.
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