Drugs for Hyperlipidemia and Coagulation Flashcards
what drugs reduce the formation of fibrin clots?
Vitamin K antagonists, unfractionated heparins, low molecular weight heparins (LMWH), direct thrombin inhibitors, Factor Xa inhibitors
what drugs are antiplatelet
COX inhibitors
ACP receptor inhibitors Glycoprotein IIb/IIIa inhibitors
Describe thrombolytics
Thrombolytics: These drugs break down clots.
*Alteplase (tPA), *Reteplase (Retavase),
*Tenecteplase (TNKase
Describe Hemostatics (Antifibrinolytics)
These drugs
promote clot stability and prevent excessive
bleeding.
*Tranexamic acid, *Aminocaproic acid (Amicar)
Describe Vitamin K drugs
It’s used as an antidote for Warfarin
overdose or excessive anticoagulation.
*Phytonadione (Vitamin K1)
What is the MOA of Warfarin, clinical indications, and side effects?
*MOA: Inhibit vitamin K-dependent clotting factors (II, VII, IX, X)
*Common side effects: Bleeding, Skin necrosis (rare), Teratogenesis, hemorrhage, bruising
*clinical indications: long term anticoagulant therapy, acute VTE, atrial fib
Describe Warfarin and INR
*A normal INR is 1, and the target INR in oral anticoagulant therapy is
different depending on the condition for which anticoagulation is
required.
What is the MOA of Heparin, clinical indications, and side effects?
*MOA: Enhance activity of antithrombin, inhibiting thrombin and Factor Xa
*Common side effects: Bleeding, Heparin-induced thrombocytopenia (HIT), osteoporosis, hemorrhage, bruising
*indications: DVT, PE, surgery, acute coronary syndromes
In general, what is the MOA of direct thrombin inhibitors, clinical uses, and SE?
*MOA: directly inhibit thrombin (factor IIa) which reduces the risk of blood clots
*clinical use: stroke prevention, DVT, thrombocytopenia, PCI
*SE: bleeding and GI
Describe the following direct thrombin inhibitor: Dabigatran
Dabigatran
MOA: Inhibit thrombin directly
Common side effects: Bleeding, GI symptoms
Argatroban is another direct thrombin inhibitor
In general, what are Factor Xa inhibitors, MOA, Indications, and side effects?
*MOA: Factor Xa inhibitors work by selectively inhibiting
the activity of Factor Xa, which is a crucial enzyme in the coagulation cascade. By doing this, they
disrupt the conversion of prothrombin to
thrombin, thereby decreasing clot formation.
*indications: DVT, PE, stroke prevention
*SE: bleeding, pain in the limbs, dizziness, abdominal pain
what is an antidote for Factor Xa Inhibitors?
Andexanet alfa (Andexxa) has been approved for emergency situations where rapid reversal of Factor Xa inhibitor
anticoagulation is needed due to life-threatening or
uncontrolled bleeding.
What are factor Xa Inhibiting drugs?
*Rivaroxaban (Xarelto)
* Apixaban (Eliquis)
In general, what are Antiplatelet drugs MOA, Indications, and side effects?
*MOA: Antiplatelet drugs work by preventing platelets (small blood
cells responsible for clotting) from sticking together. They target
various pathways in the platelet aggregation process
*clinical indications: Angina, atrial fib, CAD, PCI, Stroke, MI
*SE: bleeding, GI issues, tinnitus, TTP (Clopidogrel)
List antiplatelet drugs
*Aspirin (ASA): Inhibits an enzyme called cyclooxygenase,
preventing the synthesis of thromboxane A2, a substance that
causes platelets to clump together.
*Clopidogrel (Plavix): Prevents platelets from sticking together by
inhibiting a receptor called P2Y12.
*icagrelor (Brilinta) & Prasugrel (Effient): Similar to Clopidogrel
but with different pharmacokinetics and pharmacodynamics.
*Dipyridamole: Used in combination with aspirin; it inhibits
Phosphodiesterase (PDE) enzyme there by increases the levels
of cAMP inside platelets, inhibiting the platelet aggregation.