Pharmacology of Tamoxifen
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Questions and Answers

What is the primary route of elimination for tamoxifen?

  • Fecal elimination (correct)
  • Sweat
  • Urinary excretion
  • Biliary excretion
  • What enzyme is inhibited by tamoxifen?

  • CYP3A4 (correct)
  • CYP1A2
  • CYP2C9
  • CYP2D6
  • What is a potential long-term risk associated with tamoxifen use?

  • Breast cancer
  • Ovarian cancer
  • Cervical cancer
  • Endometrial cancer (correct)
  • What is a common adverse effect of tamoxifen?

    <p>Nausea and vomiting</p> Signup and view all the answers

    What is a possible interaction with tamoxifen?

    <p>Inhibits P-glycoprotein</p> Signup and view all the answers

    What are the inhibitors that work by binding to the active site of the enzyme reverse transcriptase and mimicking the natural substrate?

    <p>NRTIs</p> Signup and view all the answers

    Which of the following classes of inhibitors block the fusion of the viral membrane with the host cell membrane?

    <p>Entry Inhibitors</p> Signup and view all the answers

    Which type of inhibitors prevent the production of mature viral proteins by blocking the proteolytic cleavage of the viral polyprotein?

    <p>PIs</p> Signup and view all the answers

    What type of inhibitors bind to the reverse transcriptase enzyme, but do not mimic the natural substrate?

    <p>NNRTIs</p> Signup and view all the answers

    Which of the following is NOT one of the five main classes of HIV inhibitors?

    <p>Integrase Inhibitors</p> Signup and view all the answers

    What is the title of the course mentioned in the content?

    <p>Pharmacology</p> Signup and view all the answers

    Who is the instructor of the course mentioned in the content?

    <p>Osama Abusara</p> Signup and view all the answers

    What is the number of the faculty mentioned in the content?

    <p>266</p> Signup and view all the answers

    What is the name of the university mentioned in the content?

    <p>Al-Zaytoonah University of Jordan</p> Signup and view all the answers

    What is the class of anticancer drugs to which nitrosoureas belong?

    <p>Alkylating agents</p> Signup and view all the answers

    What is the number mentioned in the content in the context of the course?

    <p>3</p> Signup and view all the answers

    What is the mechanism of action of nitrosoureas?

    <p>Alkylating DNA</p> Signup and view all the answers

    What type of cancer is often treated with nitrosoureas?

    <p>Brain cancer</p> Signup and view all the answers

    What is a common adverse effect of nitrosoureas?

    <p>Bone marrow suppression</p> Signup and view all the answers

    What is the pharmacological class of nitrosoureas?

    <p>Antineoplastic agents</p> Signup and view all the answers

    What is the primary mechanism of action of tamoxifen?

    <p>Estrogen receptor antagonist</p> Signup and view all the answers

    Which of the following is a characteristic of tamoxifen's pharmacokinetics?

    <p>It is highly protein-bound</p> Signup and view all the answers

    What is a therapeutic use of tamoxifen?

    <p>Treatment of breast cancer</p> Signup and view all the answers

    What population may be at increased risk of adverse effects from tamoxifen?

    <p>Pregnant women</p> Signup and view all the answers

    What is a unique aspect of tamoxifen's therapeutic effects?

    <p>It has a dual effect on estrogen receptors</p> Signup and view all the answers

    Study Notes

    Tamoxifen

    • Tamoxifen is administered orally and metabolized in the liver, producing metabolites with estrogen agonist and antagonist activity.
    • The drug is eliminated primarily through fecal excretion.
    • Tamoxifen is an inhibitor of CYP3A4 and P-glycoprotein, which can lead to drug-drug interactions.
    • Common adverse effects of tamoxifen include hot flashes, nausea and vomiting, skin rashes, vaginal bleeding, and thromboembolism.
    • Tamoxifen can also cause vision problems and increases the risk of endometrial cancer.

    Classification of HIV Medications

    • HIV medications can be classified into four categories: NRTIs (nucleoside reverse transcriptase inhibitors), NNRTIs (nonnucleoside reverse transcriptase inhibitors), PIs (protease inhibitors), and entry inhibitors.

    Anticancer Drugs

    • Alkylating agents are a type of anticancer drug that includes nitrosoureas.

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    Description

    This quiz covers the pharmacokinetics, adverse effects, and drug interactions of tamoxifen, a medication used in breast cancer treatment.

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