Antiprotozoal Drugs Overview Quiz
16 Questions
3 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

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

Giardiasis

Amebiasis (amebic dysentery) is an infection of the intestinal tract caused by ______

Entamoeba histolytica

Diagnosis is established by isolating E. histolytica from ______

feces

Therapeutic agents for amebiasis are classified according to the site of action as: Luminal amebicides act on the parasite in the ______ of the bowel

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

Systemic amebicides are effective against amebas in the intestinal wall and ______

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

Mixed amebicides are effective against both the luminal and systemic forms of the ______

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

Metronidazole is a nitroimidazole, and it is the mixed amebicide of choice for treating amebic infections. It is usually administered with a luminal amebicide, such as iodoquinol or ______.

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

Metronidazole is also used in the treatment of infections caused by Giardia lamblia, Trichomonas vaginalis, anaerobic cocci, and anaerobic gram-negative bacilli. It is the drug of choice for the treatment of pseudomembranous colitis caused by the anaerobic Clostridium difficile. Metronidazole is a prodrug that is reduced intracellularly by the anaerobic bacteria to its active form. This reduced cytotoxic compounds bind to proteins and DNA, inhibiting nucleic acid synthesis resulting in death of the E. histolytica ______.

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

Resistance to metronidazole is not a therapeutic problem for ______.

<p>amebiasis</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 hepatic disease. The parent drug and its metabolites are excreted in the ______.

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

The adverse effects of metronidazole include nausea, vomiting, epigastric distress, abdominal cramps, unpleasant metallic taste, yeast infection of the mouth, and rarely, ______ (dizziness, vertigo, and numbness or paresthesia), which may necessitate drug discontinuation.

<p>neurotoxicity</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 interactions. It is used for treatment of amebiasis, amebic liver abscess, giardiasis, and ______.

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

Tinidazole is as effective as metronidazole, with a shorter course of treatment, but it is more expensive. Alcohol consumption should be avoided during ______.

<p>therapy</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 state after treatment of invasive intestinal or extra-intestinal amebic disease is complete. This is categorized under ______ amebicides.

<p>luminal</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 ______ forms.

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

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

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

More Like This

Antiprotozoal Drugs Overview Quiz
14 questions
Overview of Antiprotozoal Drugs
30 questions

Overview of Antiprotozoal Drugs

CongratulatorySurrealism avatar
CongratulatorySurrealism
Antiprotozoal Drugs Overview Quiz
13 questions
Use Quizgecko on...
Browser
Browser