Puzzle 21: Antimicrobial & Chemotherapeutic Agents (Antibiotics, Antivirals, & Antifungals)

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Across
  1. 2. A core antitubercular prodrug that inhibits mycolic acid synthesis, frequently co-prescribed with vitamin B6 to prevent peripheral neuropathy.
  2. 5. A urinary tract antiseptic concentrated rapidly in the renal tubules, contraindicated in patients with a creatinine clearance below thirty.
  3. 7. A sulfonamide antimetabolite that competitively inhibits dihydropteroate synthase, routinely paired with trimethoprim for synergistic efficacy.
  4. 10. An aminoglycoside antibiotic requiring therapeutic drug monitoring due to its high potential for permanent ototoxicity and acute tubular necrosis.
  5. 11. An oxazolidinone antibiotic that treats resistant Gram-positive infections, carrying a risk of serotonin syndrome if combined with SSRIs.
  6. 12. A pharmacologically inactive compound, such as valaciclovir, that must be converted by enzymes into its active antimicrobial form.
  7. 15. An older polymyxin class antibiotic revived as a last-resort option to treat multi-drug resistant Gram-negative superbugs.
  8. 17. An extended-spectrum antipseudomonal penicillin routinely combined with tazobactam to overcome bacterial beta-lactamase defenses.
  9. 22. A macrolide antibiotic that binds to the 50S ribosomal subunit to inhibit protein synthesis, widely used for atypical respiratory pathogens.
  10. 23. A third-generation cephalosporin with excellent cerebrospinal fluid penetration, commonly selected for treating bacterial meningitis.
  11. 25. The historical beta-lactam antibiotic class discovered by Alexander Fleming, primarily targeting Gram-positive cell wall cross-linking.
  12. 26. A foundational macrolide antibiotic that acts as a strong motilin receptor agonist, frequently causing severe gastrointestinal cramping.
  13. 27. An oral neuraminidase inhibitor administered within forty-eight hours of symptom onset to shorten the duration of influenza infections.
  14. 28. A glycopeptide antibiotic that inhibits cell wall synthesis by binding to D-alanyl-D-alanine, associated with red man syndrome if infused too rapidly.
  15. 29. A classification of antimicrobial action where the agent directly kills the target pathogen rather than merely inhibiting its reproduction.
Down
  1. 1. The development of harmful target-organ adverse profiles, such as bone marrow suppression or hepatotoxicity, during chemotherapeutic regimens.
  2. 3. A primary antimycobacterial agent that inhibits bacterial RNA polymerase, routinely counseling patients regarding benign orange-red discoloration of bodily fluids.
  3. 4. A potent polyene antifungal agent that binds to ergosterol to form membrane pores, notorious for severe nephrotoxicity and infusion reactions.
  4. 5. A topical polyene antifungal suspension utilized as a swish-and-swallow rinse to treat oral candidiasis infections.
  5. 6. A class of bactericidal protein synthesis inhibitors that bind to the 30S subunit, requiring oxygen for active transport into cells.
  6. 8. A tetracycline antibiotic that binds reversibly to the 30S ribosomal subunit, commonly avoided in young children due to permanent tooth discoloration.
  7. 9. An antiprotozoal and antibacterial agent that disrupts DNA structures in anaerobic organisms, famous for triggering a disulfiram-like reaction with alcohol.
  8. 13. The evolutionary mechanism by which microorganisms develop strategies to survive exposures to previously effective antimicrobial agents.
  9. 14. An azole antifungal drug that inhibits the synthesis of ergosterol by targeting fungal cytochrome P450 enzymes.
  10. 16. A spontaneous genetic alteration in an organism's DNA or RNA code that can rapidly confer immediate drug insensitivity.
  11. 18. A lincosamide antibiotic that binds to the 50S subunit, carrying a high clinical correlation with Clostridioides difficile pseudo-membranous colitis.
  12. 19. A guanosine analogue antiviral drug that requires activation by viral thymidine kinase, first-line for herpes simplex virus infections.
  13. 20. A specialized enzyme system targeted by novel antifungal compounds to disrupt the structural integrity of fungal cell membranes.
  14. 21. A broad-spectrum carbapenem antibiotic highly resistant to beta-lactamases, reserved for severe multi-drug resistant nosocomial infections.
  15. 24. A fluoroquinolone antibiotic that inhibits bacterial DNA gyrase, carrying a prominent black-box warning for tendonitis and tendon rupture.