Antihyperlipidemics Flashcards
What lipid levels is CVD most closely associated with
Elevated LDL
Decreased HDL
If you decrease LDL by 30mg/dL how much does the RR of CHD decrease
30%
Aside from lipid profile, what are the 4 other risk factors for CHD
Smoking
HTN
Obesity
Diabetes
What are the 5 hyperlipidemia phenotypes
1 Hyperchylomicronemia
2A Hypercholesterolemia (LDL)
2B Combined hyperlipidemia (LDL and VLDL)
3 Dysbetalipoproteinemia (IDL)
4 Tryglyceridemia (VLDL)
5 Mixed hypertriglyceridemia (CM and VLDL
Why is secondary hyperlipidemia more prevalent than primary
Sedentary lifestyle
Excess fats in diet
What are the Statins (HMG-CoA Reductase inhibitors) in decreasing potency
Rosuvastatin Atorvastatin Simvastatin Fluvastatin Lovastatin Pravastatin
Which is the only drug in the niacin class
Niacin
What are the Fibrate Derivatives
Gemfibrozil
Fenofibrate
What are the Bile Acid Binding Resins
Cholestyramine
Colestipol
Colesevelam
What are the Cholesterol absorption inhibitors
Ezetimibe
What are the omega-3 FAs
EPA
DHA
Lovasa
DOC for LDL reduction
Statins
Contraindicated in Pregnancy
Statins - Category X
Given as Adjuvant with statins
Niacin
DOC in pregnancy and children
Bile acid binding resins (Category B)
What do statins do
Increase endothelial function
Decrease platelet aggregation, inflammation, plasma CRP and LDL
How do statins work
Competitive inhibition of HMG-CoA Reductase
Decrease chol synth
Upregulate LDLr - More LDL clearance
What can statins used for
Decrease CV mortality
Not as good for FH
Statins are most effective when combined with
Resins
Niacin
Ezetimibe
Main AE for Statins
Elevated Aminotransferases (LFTs 3x elevated)
Myopathy
Rhabdomyolysis
Myoglobinuria
Statins combined with what increases the incidence of Myopathy and Rhabdomyolysis
Fibrate Derivatives
What is the most effective drug at increasing HDL
Niacin
What is the only drug that decreases Lp(a)
Niacin
Which drug decreases VLDL, LDL and La(a)
Niacin
Mechanism of Niacin action
Activate Gi Inhibit HSL, TAG synth, VLDL Activate LPL Decrease fibrinogen Increase tPa
Main Niacin AE
Acanthosis nigricans Hepatotoxicity Hyperglycemia (insulin resistance) Cutaneous flush Pruritis, rash Gout
What do fibrates do
Decrease TAGs
Decrease VLDL
Increase HDL
What do Fibrates act on
Activate PPAR-alpha
What do fibrates do in 2B
Increase LDL
Decrease TAG
When do you give Fibrates
3 Dysbetalipoproteinemia (IDL) 4 Tryglyceridemia (VLDL)
Who gets myositis with fibrates
Renal insufficiency
What can cause cholelithiasis
Fibrates
Which class of drugs is completely excreted in feces
Bile acid binding resins
Which class of drug is only useful in pts with isolated high LDL
Bile acid binding resins
What is contraindicated if there is increased TAGs
Bile acid binding resins
Which Bile acid binding resins has fewer AE
Colesevelam
Which class of drugs may decrease fat soluble vit absorption
Bile acid binding resins
What do you combine Bile acid binding resins with
Statins or Niacin
How do Bile acid binding resins work
Bind anionic bile acids (prevent reabsorption)
Decrease chol
Increase LDLr
Increase HDL
What does Ezetimibe do
Inhibit chol absorption
Decrease LDL
Increase HDL
How does Exetimibe work
Inhibit intestinal transport of chol
Decrease CM
Upregulate LDLr
Ezetimibe AE
Impaired liver function
Myositis
Increase chol synth
What drugs cause myositis
Gemfibrozil
Fenofibrate
Ezetimibe
What drugs can increase HDL long term
Omega-3s
How do omega-3s work
Decrease TAG
Increase FA oxidation
When do you give omega-3s
Adults
>500mg/dL TAGs
Omega-3 AEs
Increase total LDL