Sulfonamide Prodrugs and Sulfones Quiz
17 Questions
0 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 reason for pyrazinamide being elevated to first-line status in short-term tuberculosis treatment regimens?

  • Its ability to inhibit mycolic acid biosynthesis in mycobacteria
  • Its tuberculocidal activity and low short-term toxicity (correct)
  • Its minimal side effects in long-term therapy
  • Its activity against metabolically inactive tubercle bacilli

What makes pyrazinamide unsuitable for long-term therapy?

  • Its bioactivation to pyrazinoic acid in the urine
  • Its ineffectiveness against metabolically inactive tubercle bacilli (correct)
  • Its high toxicity in short-term use
  • Its ability to penetrate inflamed meninges

Which condition should healthcare providers be cautious about when administering pyrazinamide?

  • Hyperthyroidism
  • Anemia
  • Hypertension
  • Hyperuricemia or gout (correct)

What is the reason behind pyrazinamide being recommended for the treatment of tuberculous meningitis?

<p>Its penetration of inflamed meninges (D)</p> Signup and view all the answers

What is the primary mechanism of action of ethambutol against mycobacteria?

<p>Inhibition of mycolic acid biosynthesis (D)</p> Signup and view all the answers

What distinguishes ethambutol from other drugs mentioned in terms of Mycolic acid biosynthesis?

<p>It has no effect on mycolic acid biosynthesis in mycobacteria (B)</p> Signup and view all the answers

Which drug was discovered to have antitubercular properties in 1952?

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

Which compound is known for its ability to antagonize many sulfones?

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

What structure variation can give active compounds according to the text?

<p>Substitution on both the 4- and 4’-amino functions (A)</p> Signup and view all the answers

Which of the following is NOT less effective than sulfonamides?

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

Which compound has a carboxylic acid at the amine side chain and is mainly used for intestinal infections?

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

'Sulfones' were used to treat what disease after finding sodium glucosulfone effective?

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

What was the lead compound used in the development of penicillins?

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

Which compound showed in-vivo antibacterial activity despite being in-vitro inactive?

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

In the context provided, which compound ushered in the concept of the prodrug?

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

What is the mode of action of sulfonamides based on the information provided?

<p>Mimicking P-aminobenzoic acid (PABA) (A)</p> Signup and view all the answers

Which of the following classes of sulfonamides can be used for topical application?

<p>None of the above (D)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser