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An antiplatelet drug (antiaggregant), also known as a platelet agglutination inhibitor or platelet aggregation inhibitor, is a member of a class of pharmaceuticals that decrease platelet aggregation [1] and inhibit thrombus formation. They are effective in the arterial circulation where classical Vitamin K antagonist anticoagulants have minimal ...
This effect is mediated by the irreversible blockage of COX-1 in platelets, since mature platelets don't express COX-2. [ 14 ] This antiplatelet property makes aspirin useful for reducing the incidence of heart attacks; [ 13 ] heart attacks are primarily caused by blood clots, and their reduction with the introduction of small amounts of ...
For pain or fever, effects typically begin within 30 minutes. [10] Aspirin works similarly to other NSAIDs but also suppresses the normal functioning of platelets. [10] One common adverse effect is an upset stomach. [10] More significant side effects include stomach ulcers, stomach bleeding, and worsening asthma. [10]
NSAIDs cause decreased ability to form blood clots, which can increase the risk of bleeding when combined with other drugs that also decrease blood clotting, such as warfarin. [113] NSAIDs may aggravate hypertension (high blood pressure) and thereby antagonize the effect of antihypertensives, [113] such as ACE inhibitors. [114]
This results in platelet activation and the formation of platelet microparticles, which initiate the formation of blood clots; the platelet count falls as a result, leading to thrombocytopenia. [1] [7] In addition, the reticuloendothelial system (mostly the spleen) removes the antibody-coated platelets, further contributing to the thrombocytopenia.
Platelets are small blood components that form a plug in the blood vessel wall that stops bleeding. Platelets also produce a variety of substances that stimulate the production of a blood clot. One of the most common causes of increased bleeding risk is exposure to nonsteroidal anti-inflammatory drugs (NSAIDs). The prototype for these drugs is ...
In whole, the NSAIDs prevent the prostaglandins from ever being synthesized, reducing or eliminating the inflammation and resulting pain. [citation needed] Some common examples of NSAIDs are aspirin, ibuprofen, and naproxen. The newer specific COX-inhibitors are not classified together with the traditional NSAIDs, even though they presumably ...
Prostaglandin inhibitors are drugs that inhibit the synthesis of prostaglandin in human body. [1] There are various types of prostaglandins responsible for different physiological reactions such as maintaining the blood flow in stomach and kidney, regulating the contraction of involuntary muscles and blood vessels, and act as a mediator of inflammation and pain.