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Thrombolytic drugs are used in medicine to dissolve blood clots in a procedure termed thrombolysis. They limit the damage caused by the blockage of the blood vessel.
Thrombolysis is used in for myocardial infarction (heart attack), ischemic strokes, deep vein thrombosis and pulmonary embolism to clear a blocked artery and avoid permanent damage to the perfused tissue (e.g. myocardium, brain, leg) and death. A less frequent use is to clear blocked catheters that are used in long-term medical therapy.
It should be noted that thrombolytic therapy in hemorrhagic strokes is contraindicated, as its use in that situation would prolong bleeding into the intracranial space and cause further damage.
[edit] Members
The thrombolytic drugs include:
These drugs are most effective if administered immediately after it has been determined they are clinically appropriate. The advantage of administration is highest within the first ninety minutes, but may extend up to six hours after the start of symptoms.
The drugs are often given in combination with intravenous heparin, or low molecular weight heparin, which are anticoagulant drugs.
[edit] Side-effects
Hemorrhagic stroke is a rare but serious complication of thrombolytic therapy. If a patient has had thrombolysis before, an allergy against the thrombolytic drug may have developed (especially after streptokinase). If the symptoms are mild, the infusion is stopped and the patient is commenced on an antihistamine before infusion is recommenced. Anaphylaxis generally requires immediate cessation of thrombolysis.
[edit] See also
Antithrombotics (thrombolytics, anticoagulants, and antiplatelet drugs) (B01) |
Vitamin K antagonists |
Acenocoumarol, Clorindione, Dicumarol (Dicoumarol), Diphenadione, Ethyl biscoumacetate, Phenprocoumon, Phenindione, Tioclomarol, Warfarin |
Heparin group
(Platelet aggregation inhibitors) |
Antithrombin III, Bemiparin, Dalteparin, Danaparoid, Enoxaparin, Heparin, Nadroparin, Parnaparin, Reviparin, Sulodexide, Tinzaparin |
Other platelet
aggregation inhibitors |
Abciximab, Acetylsalicylic acid (Aspirin), Aloxiprin, Beraprost, Ditazole, Carbasalate calcium, Cloricromen, Clopidogrel, Dipyridamole,Eptifibatide, Indobufen, Iloprost, Picotamide, Prasugrel,Prostacyclin, Ticlopidine, Tirofiban, Treprostinil, Triflusal |
Enzymes |
Alteplase, Ancrod, Anistreplase, Brinase, Drotrecogin alfa, Fibrinolysin, Protein C, Reteplase, Saruplase, Streptokinase, Tenecteplase, Urokinase |
Direct thrombin inhibitors |
Argatroban, Bivalirudin,Dabigatran, Desirudin, Hirudin, Lepirudin, Melagatran, Ximelagatran |
Other antithrombotics |
Defibrotide, Dermatan sulfate, Fondaparinux, Rivaroxaban |
Non-medicinal |
Citrate, EDTA, Oxalate |
Major Drug Groups |
Brain and Nervous system |
Analgesics, Anesthetics, Anxiolytics, Antidepressants, Antipsychotics, Anticonvulsants, Nervous system stimulants, Antiemetics, Hallucinogens, Mood stabilizers |
Respiratory system |
Bronchodilators, Decongestants |
Heart and Circulation |
Angiotensin converting enzyme inhibitors, Antiarrhythmics, Antianginals, Antihypertensives, Antihyperlipidemics, Anticoagulants, Antiplatelets, Beta blockers, Diuretics, Thrombolytics, Vasodilators |
Gastrointestinal tract |
Antacids, Antidiarrhoeals, H2-receptor antagonists, Proton pump inhibitors, Laxatives |
Muscles, Bones, and Joints |
Anti-inflammatories, Antirheumatics, Corticosteroids, Muscle relaxants |
Allergy |
Antihistamines |
Infections and Infestations |
Antibiotics, Antivirals, Vaccines, Antiprotozoals, Antifungals, Anthelmintics |
Endocrine system |
Corticosteroids, Anti-diabetics |
Malignant and Immune disease |
Anticancer agents, Immunosuppressants |
Reproductive system |
Hormonal contraception, Fertility agents, Selective estrogen receptor modulators |
Skin |
Antipruritics |