Drugs for Coagulative Disorders (Part 02) Flashcards
Anticlotting Drugs
- Anticoagulants
- Antiplatelets
- Thrombolytics
It is used to prevent the formation of clots.
Anticoagulants
It is used to inhibit platelet aggregation.
Antiplatelets
It is used to dissolve such life-threatening clots.
Thrombolytics
Drug/s that Facilitate Clotting
Hemostatics
It is used to speed clot formation, or to limit bleeding from surgical site.
Hemostatics
It is used to prevent the formation and enlargement of clots.
Anticoagulants
Example/s of Anticoagulants
• Warfarin (Coumadin)
• Heparin
• Low Molecular Weight Heparin
Action/s of Anticoagulants
• Inhibit certain clotting factors.
• Lengthen clotting time.
• Prevent thrombi from forming or growing larger.
Its MOA is to inhibit Vitamin K Synthesis
Warfarin
Its MOA is to activate Antithrombin III
Heparin
Oral or IV
(Warfarin or Heparin)
Warfarin
IV or SC
(Warfarin or Heparin)
Heparin
PT-INR
(Warfarin or Heparin)
Warfarin
APTT
(Warfarin or Heparin)
Heparin
Prophylactic for Acute MI
Warfarin
Prevention of Venous Thrombosis
Heparin
Antidote for Warfarin
Vitamin K
Antidote for Heparin
Protamine Sulfate
Other Name of Vitamin K
Antihemorrhagic Factor
Vitamin K-1
Vitamin K-2
Vitamin K-3
Phylloquinone
Menaquinone
Menadiol
Drug/s under LMWH
• Enoxaparin (Lovenox)
• Tinzaparin (Fragmin)
• Dalteparin (Innohep)
Anticoagulants of choice for treating pregnant women with prosthetic heart valves or venous thromboembolism.
• Enoxaparin (Lovenox)
• Tinzaparin (Fragmin)
• Dalteparin (Innohep)
Anticoagulants under Direct Thrombin Inhibitors
- Lepirudin (Refludan)
- Argatroban
- Fondaparinux (Arixtra)
Polypeptide that is closely related to hirudin.
Lepirudin (Refludan)
Prophylactic for the treatment of thrombosis in patients with HIT.
Argatroban
First in new class of pentasaccharide anticoagulants that is purely synthetic.
Fondaparinux (Arixtra)
Most common and potentially serious adverse effect is bleeding.
Anticoagulants
Most common and potentially serious adverse effect is bleeding.
Anticoagulants
Anticoagulants under Indirect Thrombin Inhibitors
• Warfarin (Coumadin)
• Heparin
• Low Molecular Weight Heparin
Four (4) Primary Subclasses of Antiplatelets
- Aspirin (Acetylsalicylic Acid)
- ADP Receptor Blockers
- Glycoprotein IIA/IIB Receptor Blockers
- PDE Inhibitors
Irreversible inhibition of COX.
Aspirin (Acetylsalicylic Acid)
Prophylactic for transient cerebral ischemia and to reduce the incidence of recurrent MI.
Aspirin (Acetylsalicylic Acid)
A/E of Aspirin (Acetylsalicylic Acid)
- Increased Incidence of Hemorrhagic Stroke
- GIT Bleeding
- Salicylism = Tinnitus
It is also known as Thienopyridines.
ADP Receptor Blockers
Irreversibly inhibit the binding of ADP to its receptors on platelets.
ADP Receptor Blockers
Drug/s under ADP Receptor Blockers
• Clopidogrel (Plavix)
• Ticlopidine (Ticlid)
• Prasugrel (Effient)
It is the preferred agent in ischemic heart disease events.
Clopidogrel (Plavix)
It causes Neutropenia / Agranulocytosis, Thrombotic Thrombocytopenic Purpura (TTP), and Aplastic Anemia.
Ticlopidine (Ticlid)
Drug/s under Glycoprotein IIA and IIB Blockers
- Abciximab (Reopro)
- Eptifibatide (Integrilin)
- Tirofiban (Aggrastat)
A chimeric monoclonal antibody.
Abciximab (Reopro)
Drug/s under PDE Inhibitor
Dipyridamole
It is usually given in combination with aspirin or warfarin; it is ineffective when used alone.
Dipyridamole
Used to dissolve existing clots.
Thromobolytics
Three (3) Types of Thrombolytics
- Streptokinase (Streptase)
- Tissue Plasminogen Activator
- Anistreplase
Protein from Streptococci
Streptokinase (Streptase)
Derived from Cultured Human Melanoma Cells
Tissue Plasminogen Activator
Anisoylated Plasminogen Streptokinase Activator Complex
Anistreplase
Used to promote the formation of clots.
Hemostatics
Drug/s under Hemostatics
- Aminocaproic and Tranexamic Acid (Hemostan)
- Aprotinin
- Desmopressin Acetate
Inhibit Plasminogen Activation
Aminocaproic and Tranexamic Acid (Hemostan)
Potential S/E of Treatment is Intravascular Thrombosis
Aminocaproic and Tranexamic Acid (Hemostan)
It stops bleeding by blocking plasmin.
Aprotinin
Approved for prophylactic use to reduce perioperative blood loss and the need for blood transfusion in patients undergoing cardiopulmonary bypass sugery.
Aprotinin
This is the vasopressin V2 receptor agonist that increases the plasma concentration of von willebrand factor and factor VIII.
Desmopressin Acetate