Overview of Antiprotozoal Drugs
30 Questions
4 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

Which type of drugs cause serious toxic effects in the host, particularly on cells showing high metabolic activity?

  • Antiviral drugs
  • Antibacterial drugs
  • Antifungal drugs
  • Antiprotozoal drugs (correct)
  • What infection is caused by Entamoeba histolytica?

  • Giardiasis
  • Trypanosomiasis
  • Malaria
  • Amebiasis (correct)
  • Which disease can be acute or chronic, with varying degrees of illness, from no symptoms to mild diarrhea to fulminating dysentery?

  • Leishmaniasis
  • Malaria
  • Amebiasis (correct)
  • Toxoplasmosis
  • What is the main diagnostic method for establishing Amebiasis?

    <p>Isolating E. histolytica from feces</p> Signup and view all the answers

    What is the classification of therapeutic agents for amebiasis based on?

    <p>Site of action in the body</p> Signup and view all the answers

    Which type of amebicides are effective against both the luminal and systemic forms of amebiasis?

    <p>Mixed amebicides</p> Signup and view all the answers

    What is the drug of choice for treating amebic infections?

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

    Which drug is a prodrug that is reduced intracellularly by anaerobic bacteria to its active form?

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

    Which drug is effective against E. histolytica trophozoites and cyst forms?

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

    Which drug accumulates in patients with severe hepatic disease?

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

    Which drug should be avoided during alcohol consumption?

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

    Which drug is used for treatment of giardiasis and trichomoniasis?

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

    Which drug is used for treatment of asymptomatic colonization state after completion of invasive intestinal or extra-intestinal amebic disease treatment?

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

    Which drug has adverse effects including rash, diarrhea, and dose-related peripheral neuropathy, including a rare optic neuritis?

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

    Amebiasis is an infection of the intestinal tract caused by Entamoeba ______.

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

    Anti-protozoal drugs are used for the treatment of Amebiasis, Malaria, Trypanosomiasis, Leishmaniasis, Toxoplasmosis, and ______.

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

    Therapeutic agents for amebiasis are classified according to the site of action as: Luminal amebicides act on the parasite in the lumen of the bowel, Systemic amebicides are effective against amebas in the intestinal wall and ______.

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

    Amebiasis can be acute or chronic, with varying degrees of illness, from no symptoms to mild diarrhea to fulminating ______.

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

    Diagnosis of Amebiasis is established by isolating E. ______ from feces.

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

    Therapy for Amebiasis is indicated for acutely ill patients and asymptomatic carriers, since dormant E. histolytica may cause future infections in the carrier and be a potential source of infection for ______.

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

    Metronidazole, a nitroimidazole, is the __________ amebicide of choice for treating amebic infections.

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

    Metronidazole is the drug of choice for the treatment of pseudomembranous colitis caused by the anaerobic Clostridium __________.

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

    Metronidazole is a prodrug that is reduced intracellularly by the anaerobic bacteria to its active ________.

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

    Metronidazole is completely and rapidly absorbed after oral administration and therapeutic levels can be found in vaginal and seminal fluids, saliva, breast milk, and cerebrospinal fluid (CSF). The drug accumulates in patients with severe ________ disease.

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

    The parent drug and its metabolites are excreted in the ________.

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

    Tinidazole is a second-generation nitroimidazole that is similar to metronidazole in spectrum of activity, absorption, adverse effects, and drug ________.

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

    Tinidazole is as effective as metronidazole, with a shorter course of treatment, but it is more ________.

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

    A luminal agent, such as: iodoquinol, diloxanide furoate, paromomycin, should be administered for treatment of the asymptomatic colonization ________.

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

    Iodoquinol, a halogenated 8- hydroxyquinolone, is amebicidal against E. histolytica and is effective against the luminal trophozoite and cyst ________.

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

    Adverse effects of iodoquinol include rash, diarrhea, and dose-related peripheral neuropathy, including a rare optic ________.

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

    Study Notes

    Amebiasis and Anti-Protozoal Drugs

    • Amebiasis is an infection of the intestinal tract caused by Entamoeba histolytica.
    • The disease can be acute or chronic, with varying degrees of illness, from no symptoms to mild diarrhea to fulminating dysentery.

    Anti-Protozoal Drugs

    • Anti-protozoal drugs are used for the treatment of Amebiasis, Malaria, Trypanosomiasis, Leishmaniasis, Toxoplasmosis, and Giardiasis.
    • Therapeutic agents for amebiasis are classified according to the site of action as:
      • Luminal amebicides act on the parasite in the lumen of the bowel.
      • Systemic amebicides are effective against amebas in the intestinal wall and extraintestinal tissues.

    Diagnosis and Treatment

    • Diagnosis of Amebiasis is established by isolating E. histolytica from feces.
    • Therapy for Amebiasis is indicated for acutely ill patients and asymptomatic carriers, since dormant E. histolytica may cause future infections in the carrier and be a potential source of infection for others.
    • Metronidazole, a nitroimidazole, is the drug of choice for treating amebic infections.
    • Metronidazole is a prodrug that is reduced intracellularly by anaerobic bacteria to its active form.
    • The drug accumulates in patients with severe hepatic disease.
    • Metronidazole is completely and rapidly absorbed after oral administration and therapeutic levels can be found in vaginal and seminal fluids, saliva, breast milk, and cerebrospinal fluid (CSF).

    Other Amebicides

    • Tinidazole is a second-generation nitroimidazole that is similar to metronidazole in spectrum of activity, absorption, adverse effects, and drug interactions.
    • Tinidazole is as effective as metronidazole, with a shorter course of treatment, but it is more expensive.
    • Iodoquinol, a halogenated 8- hydroxyquinolone, is amebicidal against E. histolytica and is effective against the luminal trophozoite and cyst forms.
    • Adverse effects of iodoquinol include rash, diarrhea, and dose-related peripheral neuropathy, including a rare optic neuritis.
    • Iodoquinol is used for treatment of asymptomatic colonization state after completion of invasive intestinal or extra-intestinal amebic disease treatment.
    • Tinidazole is used for treatment of giardiasis and trichomoniasis.

    Studying That Suits You

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

    Quiz Team

    Description

    Learn about the overview and summary of antiprotozoal drugs used for the treatment of diseases like amebiasis, malaria, trypanosomiasis, leishmaniasis, toxoplasmosis, and giardiasis. Understand the chemotherapy for amebiasis and the infection of amebiasis (amebic dysentery).

    More Like This

    Overview of Antiprotozoal Drugs
    16 questions
    Antiprotozoal Drugs Overview Quiz
    16 questions
    Antiprotozoal Drugs Overview Quiz
    13 questions
    Use Quizgecko on...
    Browser
    Browser