Anti-Dyslipidemic Drugs: Statins Overview
8 Questions
1 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary mechanism of action of statins?

  • Increase in triglyceride synthesis by the liver
  • Inhibition of HMG CoA reductase (correct)
  • Inhibition of cholesterol absorption in the intestines
  • Activation of LDL receptors in peripheral tissues

Which statement about the pharmacokinetics of statins is true?

  • Some statins have a longer duration of action and can be taken at any time. (correct)
  • All statins can be administered at any time of the day.
  • They should always be taken on an empty stomach.
  • Food reduces the absorption of statins.

Which of the following statins is not metabolized by CYP3A4?

  • Simvastatin
  • Atorvastatin
  • Rosuvastatin
  • Pravastatin (correct)

What is a common side effect associated with statin use?

<p>Myopathy (C)</p> Signup and view all the answers

Which statin is known to have a higher CNS penetration?

<p>Lovastatin (B)</p> Signup and view all the answers

What is one of the pleiotropic effects of statins?

<p>Plaque stabilization (A)</p> Signup and view all the answers

Which of the following statements about prodrugs is accurate in relation to statins?

<p>Only Simvastatin and Lovastatin are prodrugs. (A)</p> Signup and view all the answers

What should be monitored to assess for muscle damage in patients taking statins?

<p>Creatine phosphokinase levels (B)</p> Signup and view all the answers

Flashcards

Statins' MOA

Statins inhibit HMG CoA reductase, decreasing cholesterol synthesis by the liver. This triggers LDL receptor upregulation, leading to increased cholesterol uptake from the blood, lowering LDL levels.

Statin Pharmacokinetics

Most statins are taken after meals, with HMG CoA activity peaking at night. Some have long durations and can be taken anytime. Food increases absorption. Metabolism is primarily via CYP3A4, except Pravastatin. CYP3A4 inhibitor co-administration can lead to increased toxicity.

Common Statins

Commonly used statins include Atorvastatin, Rosuvastatin, Pravastatin, Simvastatin, Fluvastatin, and Cerivastatin (while it ends in '-statin', it's not an HMG-CoA inhibitor).

Statin Toxicity

Statin toxicity can manifest as myopathy (muscle damage), diabetes, or hepatotoxicity (liver damage).

Signup and view all the flashcards

Statin Monitoring

Monitor creatine phosphokinase (CPK) levels to assess for muscle damage, a potential side effect of statins.

Signup and view all the flashcards

Pleiotropic Effects

Statins have additional benefits beyond lowering LDL, including plaque stabilization, reduced endothelial dysfunction, decreased inflammation, reduced oxidative stress, and reduced thrombosis risk.

Signup and view all the flashcards

Simvastatin & Lovastatin

Simvastatin and Lovastatin are prodrugs, needing metabolism to become active. They have higher CNS penetration compared to other statins.

Signup and view all the flashcards

What is HMG CoA reductase?

HMG CoA reductase is an enzyme involved in cholesterol synthesis. Statins block this enzyme, lowering cholesterol production.

Signup and view all the flashcards

Study Notes

Anti-Dyslipidemic Drugs: Statins

  • Statins are drugs used to lower cholesterol levels.
  • They work by inhibiting the enzyme HMG-CoA reductase.
  • This reduces cholesterol production in the liver.
  • LDL receptors are upregulated, taking up cholesterol from the blood.
  • Statins maximize LDL cholesterol lowering.
  • Common statins include Atorvastatin, Rosuvastatin, Pravastatin, Simvastatin, Fluvastatin, and Cerivastatin.
  • Some statins (e.g., Atorvastatin, Rosuvastatin) can be taken at any time of the day, while others (e.g., Pravastatin) are best taken after meals.
  • Statins are primarily metabolized by CYP3A4, except Pravastatin.
  • Combining statins with CYP3A4 inhibitors can lead to increased toxicity.
  • Statin toxicity can manifest as myopathy (muscle damage), diabetes mellitus, and hepatotoxicity.
  • Monitoring creatinine phosphokinase (CPK) levels is important when starting statins to assess for muscle damage.
  • Food increases statin absorption, so they are often taken with meals except for some types.
  • Some drugs ending in "-statin," aren't HMG-CoA inhibitors, such as Cilastatin, Pentostatin, and Somatostatin, used with other medications.
  • Cilastatin is given with Imipenem to block its breakdown, Pentostatin inhibits adenosine deaminase, and Somatostatin is a hormone.

Pleiotropic Effects

  • Pleiotropic effects are additional benefits of statins beyond their cholesterol-lowering properties.
  • These effects often include plaque stabilization, improved endothelial function, reduced inflammation, less oxidative stress, and lower risk of thrombosis.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Description

Explore the essential details about statins, anti-dyslipidemic drugs that effectively lower cholesterol levels. This quiz covers their mechanism of action, common types, optimal dosing times, potential side effects, and the importance of monitoring during treatment. Enhance your understanding of statins and their role in managing cholesterol.

More Like This

Statins MOA/Uses/ADRs Flashcards
10 questions
Statin Therapy Classifications
7 questions
Statins and HMG-CoA Reductase Inhibitors
33 questions
Statin Medications Overview
5 questions

Statin Medications Overview

ReplaceablePlanet3310 avatar
ReplaceablePlanet3310
Use Quizgecko on...
Browser
Browser