Antithrombotic: Information from Answers.com

A antithrombotic is a drug which reduces thrombus formation.^[1]^[2]

Different antithrombotics affect different processes:

Antiplatelet drugs limit the migration or aggregation of platelets.
Anticoagulants limit the ability of the platelets to clot.
Thrombolytic drugs act to dissolve clots after they have formed.

References

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v • d • e Pharmacology: Major drug groups

Gastrointestinal tract/metabolism (A)	stomach acid (Antacids, H₂ antagonists, Proton pump inhibitors) • Antiemetics • Laxatives • Antidiarrhoeals/Antipropulsives • Anti-obesity drugs • Anti-diabetics • Vitamins • Dietary minerals

Blood and blood forming organs (B)	Antithrombotics (Antiplatelets, Anticoagulants, Thrombolytics/fibrinolytics) • Antihemorrhagics (Platelets, Coagulants, Antifibrinolytics)

Cardiovascular system (C)	cardiac therapy/antianginals (Cardiac glycosides, Antiarrhythmics, Cardiac stimulants) Antihypertensives • Diuretics • Vasodilators • Beta blockers • Calcium channel blockers • renin-angiotensin system (ACE inhibitors, Angiotensin II receptor antagonists, Renin inhibitors) Antihyperlipidemics (Statins, Fibrates, Bile acid sequestrants)

Skin (D)	Emollients • Cicatrizants • Antipruritics • Antipsoriatics • Medicated dressings

Reproductive system (G)	Hormonal contraception • Fertility agents • SERMs • Sex hormones

Endocrine system (H)	Hypothalamic-pituitary hormones • Corticosteroids (Glucocorticoids, Mineralocorticoids) • Sex hormones • Thyroid hormones/Antithyroid agents

Infections and infestations (J, P, QI)	Antibiotics • Antimycobacterials (Tuberculosis treatment, Leprostatic agents) • Antifungals • Antivirals • Vaccines • Antiparasitics (Antiprotozoals, Anthelmintics) • Ectoparasiticides

Malignant disease (L01-L02)	Anticancer agents (Antimetabolites, Alkylating, Spindle poisons, Antineoplastic, Topoisomerase inhibitors)

Immune disease (L03-L04)	Immunomodulators (Immunostimulants, Immunosuppressants)

Muscles, bones, and joints (M)	Anabolic steroids • Anti-inflammatories (NSAIDs) • Antirheumatics • Corticosteroids • Muscle relaxants • Bisphosphonates

Brain and nervous system (N)	Anesthetics (General, Local) • Analgesics • Antimigraines • Anticonvulsants/Mood stabilizers (Lithium pharmacology) • Antiparkinson drugs Psycholeptics (Anxiolytics, Antipsychotics, Hypnotics/Sedatives) • Psychoanaleptics (Antidepressants, Stimulants)

Respiratory system (R)	Decongestants • Bronchodilators • Cough medicines • H₁ antagonists

Sensory organs (S)	Ophthalmologicals • Otologicals

Other ATC (V)	Antidotes • Contrast media • Radiopharmaceuticals • Dressings

Antithrombotics (thrombolytics, anticoagulants and antiplatelet drugs) (B01)

Antiplatelet drugs

Glycoprotein IIb/IIIa inhibitors	Abciximab • Eptifibatide • Tirofiban

ADP receptor/P2Y₁₂ inhibitors	(Thienopyridines) Clopidogrel • Ticlopidine • Prasugrel

Prostaglandin analogue (PGI2)	Beraprost • Prostacyclin • Iloprost • Treprostinil

COX inhibitors	Acetylsalicylic acid/Aspirin # • Aloxiprin • Carbasalate calcium

Other	Ditazole • Cloricromen • Dipyridamole • Indobufen • Picotamide • Triflusal

Anticoagulants

Vitamin K antagonists
(inhibit II, VII, IX, X)

coumarins: Acenocoumarol • Coumatetralyl • Dicoumarol (Dicumarol) • Ethyl biscoumacetate • Phenprocoumon • Warfarin

1,3-Indandiones: Clorindione • Diphenadione • Phenindione

other: Tioclomarol

Factor Xa inhibitors
(with some II inhibition)

Heparin group/ glycosaminoglycans/ (bind antithrombin)	low molecular weight heparin (Bemiparin, Certoparin, Dalteparin, Enoxaparin, Nadroparin, Parnaparin, Reviparin, Tinzaparin) oligosaccharides (Fondaparinux, Idraparinux) heparinoid (Danaparoid, Sulodexide, Dermatan sulfate)

Direct Xa inhibitors	xabans (Apixaban, Otamixaban, Rivaroxaban)

Direct thrombin (II) inhibitors

bivalent: Hirudin (Bivalirudin, Lepirudin, Desirudin)
univalent: Argatroban • Dabigatran • Melagatran • Ximelagatran

Other

Defibrotide • Ramatroban • Antithrombin III • Protein C (Drotrecogin alfa)

Thrombolytic drugs/
fibrinolytics

plasminogen activators: TPA (Alteplase, Reteplase, Tenecteplase) • UPA (Urokinase, Saruplase) • Streptokinase # • Anistreplase • Monteplase

other serine endopeptidases: Ancrod • Fibrinolysin

Brinase

Non-medicinal

Citrate • EDTA • Oxalate

^#WHO-EM. ^†Undergoing clinical trials, not FDA approved. ^‡Withdrawn from market. ^§Development halted.

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