Blood Drugs Flashcards
Hematinics (4)
- Iron
- Vitamin B12
- Folic Acid
- Hematopoietic growth factors
Oral Iron Therapy: Types (3)
- Ferrous sulphate
- Ferrous succinate
- Ferrous fumerate
Oral Iron Therapy: Adverse Effects (4)
Nausea
Epigastric discomfort
Abdominal cramps
Constipation
Parenteral Iron Therapy: Types (2)
- Iron - dextran
2. Iron - sucrose complex
Parenteral Iron Therapy: Indications (4)
- Unable to tolerate oral iron
- Unable to absorb oral iron
- Non-compliance
- Along with recombinant erythropoietin therapy
Hematopoietic Growth Factors: Erythropoietin Synthesis
Peritubular cells on the cortex of the kidney
Hematopoietic Growth Factors: Erythropoietin Physiological Role
Proliferation of erythroid precursor cells
Hematopoietic Growth Factors: Erythropoietin Types (2)
- Epoetin alfa
2. Darbopoietin alfa
Hematopoietic Growth Factors: Erythropoietin Therapeutic Uses (3)
- Anemia of CRF
- Anemia of AIDS (zidovudine treatment)
- Anemia associated with cancer chemotherapy
Myeloid Growth Factors: Produced naturally by 4)
Fibroblasts
Endothelial cells
Macrophages
T cells
Myeloid Growth Factors: G-CSF (2)
Increases neutrophil production
Recombinant G-CSF (filgrastim)
Myeloid Growth Factors Use: Cancer chemotherapy Induced neutropenia (2)
Accelerates the rate of neutrophil recovery after dose-intensive myelosuppressive chemotherapy
Reduces the duration of neutropenia and raises the lowest count
Myeloid Growth Factors: Other Uses (2-4)
- Autologous stem cell transplantation
- Mobilization of peripheral blood stem cells (PBSCs)
- Severe congenital neutropenia
Myeloid Growth Factors: GM-CSF (2)
Increase neutrophil, monocyte production
Recombinant human GM-CSF (sargromostim)
- Autologous bone marrow transplantation
- Intenseive cancer chemotherapy
Thrombopoeitic Growth Factors: IL-11 (2)
Increases platelet production
Recombinant IL-11 (oprelvekin): patients undergoing chemotherapy for nonmyeloid malignancy
Anticoagulants: Hemostasis Defined (3)
- Platelets adhere to damaged subendothelium
- Aggregate to form hemostatic plug
- Stimulate local activation of clotting factors
Natural anticoagulant mechanisms: (4)
- Prostacylin
- Antithrombrin III
- Protein C
- Protein S
Anticoagulants: General Info (3)
- Glycosaminoglycan (GAG)
- Mol. Weight: 10000-20000
- Secretory granules of mast cells
Anticoagulants: Heparin MOA (2)
Catalyzes the inhibition of several coagulation factors by antithrombin
Increases the rate of thrombin-antithrombin reaction
Anticoagulants: Heparin Uses (3)
Initiate treatment of DVT and pulmonary embolism
Initial management of unstable angina or acute MI
During or after coronary angioplasty or stent placement
Anticoagulants: Heparin Lab Test Monitored by?
aPTT
Anticoagulants: Heparin Adverse Effects (5)
- Bleeding
- Thrombocytopenia
- Alopecia
- Osteoporosis
- Allergic reactions: urticaria, rigors
Anticoagulants: Low Molecular Weight (LMW) Heparins Defined
Heparin is fractioned into LMW forms (3000-7000)
Anticoagulants: Low Molecular Weight (LMW) Heparins Types (5)
- Enoxaparin
- Nalteparin
- Reviparin
- Nadoparin
- Ardeparin
Anticoagulants: Low Molecular Weight (LMW) Heparins MOA
Selectively inhibits factor Xa with little effect on IIa
Anticoagulants: Low Molecular Weight (LMW) Heparins Advantages (4)
- Better subcutaneous bioavailability
- Longer biological half-lives
- Routine monitoring not necessary
- Lower incidence of bleeding and thrombocytopenia
Protoamine Sulphate: Defined (3)
Heparin antagonist
Strongly basic
Binds to heparin and NEUTRALIZES its anticoagulant effect
Protoamine Sulphate: Indication
To reversethe anticoagulant effect of haparin following cardiac surgery and other vascular procedures
Other Anticoagulants: Bivaluridiin (3)
- Direct thrombin inhibitor
- Also inhibits platelet activation
- Percutaneous coronary angioplasty
Other Anticoagulants: Argatroban (2)
- Direct thrombin inhibitor
2. Thrombosis in patients with heparin induced thrombocytopenia
Other Anticoagulants: Rivaroxaban (Xarelto) and Apixaban (Eliquis) (3)
- Oral Xa (10a) Inhibitors
- Prevention and treatment of patients with venous thromboembolism
- Stroke prevention in patients with atrial fibrillation
Oral Anticoagulants: Coumadin derivatives (2)
- Dicumarol
2. Warfarin
Oral Anticoagulants: Warfarin MOA (2)
- Vit K. Anatagonist
2. Interferes with the activation of Vit. K dependent clotting factors
Oral Anticoagulants: Warfarin Onset of Action
> 3-5 days
Oral Anticoagulants: Warfarin Half Life of Factor VII
6
Oral Anticoagulants: Warfarin Half Life of Factor IX
24
Oral Anticoagulants: Warfarin Half Life of Factor X
40
Oral Anticoagulants: Warfarin Half Life of Factor II
60
Oral Anticoagulants: Warfarin Adverse Effect - Bleeding (3)
- Ecchymosis, epistaxis
- Hematuria, intracranial
- Pericardial, spinal cord hemorrhage
Oral Anticoagulants: Warfarin Adverse Effect - Birth Defect (1)
Fetal warfarin syndrome
Oral Anticoagulants: Warfarin Other Adverse effects (2)
- Purple toe syndrome
2. Skin necrosis
Oral Anticoagulants: Warfarin Drug Interaction - Increase PT with? (3)
- Sulphonamides
- Cimetidine
- Aspirin (high doses)
Oral Anticoagulants: Warfarin Drug Interaction - Decrease PT with? (1)
Barbiturates
Oral Anticoagulants: Warfarin Uses (3)
Prevent progression or recurrence of acute DVT or pulmonary embolism
Prevent venous thromboembolism in patients undergoing orthopedic or gynecological surgery
Prevent systemic embolization in patients with acute MI, prosthetic heart valves or chronic atrial fibrillation
Oral Anticoagulants: Warfarin Monitoring (2)
- PT
2. INR
Oral Anticoagulants: Warfarin Contraindications (6)
- Bleeding disorders
- Severe hypertension
- Endocarditis
- Ocular/neurosurgery
- Lumbar puncture
- Chronic alcoholics
Fibrinolytics (Thrombolytics): Streptokinase MOA
Streptokinase to Plasminogen to Plasmin to Fibrin to Fibrin breakdown
Fibrinolytics (Thrombolytics): Adverse Effects (3)
- Antigenic-hypersensitivity reactions
- Hypotension, arrhythmia
- Bleeding
Fibrinolytics (Thrombolytics): Urokinase activates and is what?
Activates plasminogen directly
Is non-antigenic
Fibrinolytics (Thrombolytics): Alteplase and Reteplase is what type of tPA?
Recombinant tPA
Fibrinolytics (Thrombolytics): Use - Acute MI
To recanalize thrombosed coronary artery
Fibrinolytics (Thrombolytics): Use - Acute ischemic stroke
tPAs - alteplase
Fibrinolytics (Thrombolytics): Use - DVT
SVC syndrome, ascending thrombophlebitis
Fibrinolytics (Thrombolytics): Other Uses (2)
Unstable angina
Pulmonary embolism
Fibrinolytics (Thrombolytics): Toxicity leads to? (1)
Hemorrhage
Fibrinolytics (Thrombolytics): Contraindications (3)
- In surgery within 10 days
- GI bleeding within 3 months
- Hemorrhagic disorder
ANTI-fibrinolytics: Epsilin amino-caproic acid (EACA) MOA
Combines with plasminogen and plasmin and prevents it from binding to fibrin
ANTI-fibrinolytics: Epsilin amino-caproic acid (EACA) Uses (3)
- Overdose of thrombolytics
- Prevent recurrence of subarachnoid and GI hemorrhage
- Prostatic surgery, tooth extraction in hemophiliacs
Antiplatelet Drugs: Aspirin MOA
Inhibits TXA2
Antiplatelet Drugs: ADP Receptor Antagonists (2)
- Ticlopidine
2. Clopidogrel (fewer adverse effects)
Antiplatelet Drugs: Glycoprotein (GP) IIb/IIIa Receptor Antagonists (3)
- Abciximab
- Tirofiban
- Eptifibatide
Antiplatelet Drugs: Dypyridamol MOA
Inhibits phosphodiesterase (PDE) and blocks uptake of adenosine (increases cAMP)
Antiplatelet Drugs: Cilostazol Use
Used priamry to treat intermittent claudication
Antiplatelet Drugs: Use - Coronary Artery Disease (5)
- Low dose aspirin (50-320 mg/day) immediately after MI
- To cover percutaneous transluminal coronary angioplasty (PTCA)
- Unstable angina
- Primary and secondary prevention of MI
- All individuals with evidence of CAD
Antiplatelet Drugs: Use - Cerebrovascular Disease (1)
Reduces the incidence of TIAs and stroke
Antiplatelet Drugs: Use - Coronary Bypass Implants (1)
Improves the patency of the implanted bypass vessel
Antiplatelet Drugs: Use - Prosthetic Heart Valves (1)
Used with warfarin to reduce formation of microthrombi