Coronary Artery and Cardiac Dysrhythmia Medication Flashcards
HMG-CoA Reductase Inhibitors: Prototype
atorvastatin [Lipitor]
Other:
simvastatin [Zocor]
lovastatin [Mevacor]
rosuvastatin [Crestor[
If it ends in statin its an HMG-CoA Reductase Inhibitors:
HMG-CoA Reductase Inhibitors: EPA
Increase HDL and lowers LDL and total cholesterol by inhibiting HMG-CoA reductase. Which is an enzyme that synthesizes cholesterol in the liver
HMG-CoA Reductase Inhibitors: Therapeutic Use
Used to treat high cholesterol and prevent vascular disease
HMG-CoA Reductase Inhibitors: ADR
Myopathy and hepatotoxicity
HMG-CoA Reductase Inhibitors: Contraindications
Teratogenic
Liver disease
ETOH use
Grapefruit
Warfarin + Statin increases the risk of bleeding.
Fibrates: Prototype
gemfibrozil [Lopid]
Other
fenofibrate [Tricor]
Fibrates: EPA
increases oxidation of fatty acids in the liver and tissues these decreasing production of triglycerides
Fibrates: Therpeutic Use
Most effective for reducing serum triglycerides, increasing HDLs too
Fibrates: ADR
GI effects, hepatotoxicity, gallstones, and myopathy
Fibrates: Contraindications
Avoid in someone with gallbladder disease
Liver disease
Severe renal impairment
Warfarin increases the risk of bleeding
The risk of myopathy increases with statin use.
Class IB Sodium Channel Blockers: Prototype
lidocaine
Class IB Sodium Channel Blockers: EPA
Blocks Na+ channels thereby shortening the repolarization phase of the cardiac cycle. Causes decreased rate of contractions
Class IB Sodium Channel Blockers: Therapeutic Use
Treats serious VENTRICULAR DYSRYTHMIAS associated with MI, cardiac cath, and surgery
Class IB Sodium Channel Blockers: ADR
Hypotension, Bradycardia, other dysrhythmias, and anxiety
Class IB Sodium Channel Blockers: Contraindications
Untreated bradycardia or heart block
Pregnancy and Lactation
Class IC Sodium Channel Blockers: Prototype
flecainide [Tambocor]
Class IC Sodium Channel Blockers: EPA
Blocks Na+ channels to slow conduction velocity and the refractory period
Class IC Sodium Channel Blockers: Therapeutic Use
Treat atrial flutter or atrial fibrillation
Class IC Sodium Channel Blockers: ADR’s
Worsening of heart failure, potential or other dysrhythmias, and widens QRS complex
BLACK BOX: Can cause fatal arrhythmias and death in patients with recent MI
Class IC Sodium Channel Blockers: Contraindications
Heart block and Heart failure
Class III Potassium Channel Blockers: Prototype
amiodarone [has one of the longest half-lives of any drug at 30 days]
dofetilide [Tikosyn] is another drug that is used to treat a-fib though patients need to be on watch since it can cause torsades de pointe which is a type of vtach.
Class III Potassium Channel Blockers: EPA
Blocks K+ channels in turn slowing the repolarization and prolonging the refractory period of the heart cycle
Class III Potassium Channel Blockers: Therapeutic Use
Treats various life-threatening ventricular and/or atrial tachydysrhythmias
Class III Potassium Channel Blockers: ADR
Fatal dysrthmias and Hypotension
BLACK BOX: Long term use can cause fatal pulmonary toxicity