Drugs and Their Actions Overview
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Questions and Answers

Which drug is primarily used to treat status epilepticus in children?

  • Phenobarbital (correct)
  • Carbamazepine
  • Valproate
  • Phenytoin

What is the primary mechanism of action for benzodiazepines as anxiolytic-hypnotic drugs?

  • Serotonin reuptake inhibition
  • GABA-mediated chloride influx (correct)
  • Dopamine receptor agonism
  • Inhibition of norepinephrine release

Which neurotransmitter is significantly affected in patients with Alzheimer's disease?

  • Acetylcholine (correct)
  • Serotonin
  • Dopamine
  • Norepinephrine

Which of the following statements correctly describes Prinzmetal's angina?

<p>It is associated with coronary artery spasm. (A)</p> Signup and view all the answers

What is the most dangerous adverse effect associated with Morphine?

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

Which condition is indicated by a reddening of the conjunctiva as a side effect?

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

What is a common feature of panic attacks?

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

What is the contraindication for the anticoagulant Warfarin?

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

How does anemia affect the body?

<p>Does not deliver enough oxygen (B)</p> Signup and view all the answers

What is a common symptom of hemophilia?

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

Which drug is prescribed to manage hyperlipidemia while providing vitamins D and E supplements?

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

Which drug decreases cholesterol synthesis by inhibiting the enzyme 3-hydroxy-3-methylglutaryl coenzyme A reductase?

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

Which drug binds bile acids in the intestine and prevents their return to the liver?

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

What is a mechanism of action for clopidogrel?

<p>Interferes with ADP receptor interaction (C)</p> Signup and view all the answers

Which antipsychotic drug is commonly used as an antiemetic?

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

What adverse effect is commonly caused by phenytoin?

<p>Hyperplasia (D)</p> Signup and view all the answers

Flashcards

What is Clopidogrel?

A drug that inhibits the aggregation of platelets by blocking the binding of adenosine diphosphate (ADP) to its receptor.

What is Abciximab?

A drug that inhibits the binding of fibrinogen to the platelet glycoprotein IIb/IIIa receptor, preventing platelet aggregation.

What is Aspirin?

A drug that inhibits the enzyme cyclooxygenase (COX), reducing the production of prostaglandins which are involved in pain and inflammation.

What is Prinzmetal's Angina?

A condition characterized by recurrent episodes of chest pain caused by coronary artery spasm.

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What is Alzheimer's disease?

A neurodegenerative disease characterized by the formation of amyloid plaques in the brain, leading to memory loss and cognitive decline.

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What are benzodiazepines?

A group of drugs that work by enhancing the effects of the neurotransmitter GABA, reducing anxiety and promoting sleep.

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What is a panic attack?

A condition characterized by recurrent episodes of intense anxiety, fear, and physical symptoms such as palpitations, sweating, and dizziness.

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What is Generalized Anxiety Disorder (GAD)?

A mental health condition characterized by persistent and excessive worry and anxiety, often accompanied by physical symptoms such as restlessness, fatigue, and difficulty concentrating.

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Statins

A group of drugs that lower cholesterol levels by inhibiting the enzyme 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, which is responsible for cholesterol synthesis in the liver.

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Ezetimibe

A drug that inhibits the absorption of dietary cholesterol in the small intestine, thereby lowering cholesterol levels in the blood.

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Cholestyramine

A drug that binds to bile acids in the intestine, preventing their reabsorption and promoting their excretion in the feces. This results in a decrease in circulating cholesterol levels.

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Lovastatin

A drug that reduces cholesterol synthesis by inhibiting the enzyme HMG-CoA reductase.

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Clopidogrel

A drug that inhibits the binding of ADP to its receptor on platelets, thus preventing platelet activation and aggregation.

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Abciximab

A drug that inhibits the binding of fibrinogen to the platelet glycoprotein IIb/IIIa receptor, thus preventing platelet aggregation.

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Aspirin

A drug that inhibits the enzyme cyclooxygenase (COX), which is involved in the synthesis of thromboxane A2, a potent platelet activator and vasoconstrictor.

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Losartan

A drug that is often used to treat hypertension, especially in patients with diabetes or kidney disease.

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Study Notes

Drugs and Their Actions

  • Clopidogrel inhibits ADP
  • Abciximab inhibits GP IIb/IIa
  • Aspirin inhibits COX-1
  • Phenobarbital treats status epilepticus in children
  • Morphine's most dangerous adverse effect is tolerance and dependence
  • SSRIs block serotonin reuptake
  • Tetrahydrocannabinol is a major psychoactive component of marijuana
  • Warfarin is contraindicated in pregnancy
  • Damage to oligodendrocytes occurs in multiple sclerosis
  • Fibrinogen binds to GP IIb/IIIa receptors
  • Coronary artery spasm is known as Prinzmetal's angina
  • Marijuana use can cause conjunctival reddening
  • Unstable angina is a type of myocardial infarction
  • Amyloid is associated with Alzheimer's disease
  • Phenytoin treats status epilepticus
  • Megaloblastic anemia can result from folic acid deficiency
  • Acetylcholine is affected by Alzheimer's disease

Medical Procedures

  • Local anesthesia is used in dental procedures
  • General anesthesia is used for surgery

Other Medical Topics

  • Damage to oligodendrocytes occurs in multiple sclerosis
  • Lithium carbonate is used in bipolar disorder
  • Serotonin is a significant neurotransmitter in major depression
  • Deep vein thrombosis (DVT) is sometimes associated with pulmonary emboli
  • Streptokinase is a first-generation thrombolytic
  • Antithrombin III is involved in heparin coagulation

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Description

Test your knowledge on the mechanisms and effects of various drugs, including anticoagulants, analgesics, and antidepressants. This quiz also covers related medical topics like anesthetics and the implications of drug interactions. Challenge yourself with questions about how these substances interact with the body's systems and their therapeutic applications.

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