Drugs all Flashcards
4 Hemostatic Agents
1) Vitamin K
2) Protamine Sulfate
3) Epsilon Aminocaproic Acid (EACA)/Tranexmil Acid (TXA)
4) Desmopressin Acetate
Protamine sulfate is DOC for…
Tx of hemorrhage secondary to Heparin OD
Anti fibrinolytic agent
Epsilon Aminocaproic Acid (EACA)/Tranexmil Acid (TXA)
Desmopressin Acetate is DOC for…
Tx bleeding due to VWD dz and tx central diabetes insipidus
(+ asparin tox in dogs)
Desmopressin MOA
Cause dose dependent increase in plasma factor VIII and plasminogen factor (supports primary hemostasis -> platelet fxn)
2 Antithrombotic drugs
1) Aspirin
2) Clopidogrel Bisulfate (Plavix)
[High or Low] aspirin dose is preferred when using it as an antithrombotic
Low dose preferred because high dose can cause increase in platelet aggregation
Clopidogrel MOA
Reduce platelet aggregation by selectively inhibiting the ADP receptor on platelet surface
4 Anticoagulant drugs
1) Unfractionated Heparin
2) Low molecular weight heparin
3) Warfarin Sodium
4) Rivaroxaban
Is risk of bleeding higher for anticoagulants or antithrombotics?
Anticoagulants
What drug do you need to monitor aPTT
Unfractionated Heparain
Unfractionated heparin + Low molecular weight heparin MOA
Binds to antithrombin III to inactivate coagulation factor Xa and prevents the conversion of prothrombin to thrombin
Warfarin Sodium MOA (imp)
Inhibit Vitamin K Epoxide Reductase, which interferes with action of Vit K bc Vit K synthesizes coag factors II, VII, IX, X
What drug do you have to monitor PT clotting time
Warfarin Sodium
What drug is a direct factor Xa inhibitor
Rivaroxaban
Of the two thrombolytics, which is fibrin clot SPECIFIC?
tissue plasminogen activator
2 thrombolytic drugs + MOA + Precaution
1) Streptokinase/Urokinase
2) Tissue Plasminogen Activator (t-PA)
MOA: activate plasminogen to breakdown existing clots -> thrombolysis
Precaution: life threatening hemorrhage
Three (behavior modifying) drugs that increase serotonin levels in the brain
Buspirone, Fluoxetine, Trazadone
Drug to tx feather plucking in birds
Clomipramide (TCA)
Fluoxetine
SRRI, inhibit neuronal reputake of serotonin and upregulate GABA receptors
Use: separation anxiety, dominance agression, acral lick granuloma….
Reserpine
Indirect acting sympatholytic
MOA: blocks NE uptake into vesicles to reduce storage and release of NE
Long acting tranquilizing agent in horses (ie long term stall rest)
Clomipramide precaution
Narrow therapeutic index; cats more sensitive
Buspirone
Partial serotonin agonist
MOA: increase serotonin levles in brain
DOC: cats for urinary marking, spraying behaviors
Difference between first and second generation H1 Antagonists
H1: cross BBB, drowsy
H2: non-drowsy