Pharmacology · single question
Which of the following bacteria are resistant to clindamycin?
Show answer and explanation
Correct answer: A. Pseudomonas aeruginosa
Clindamycin has good coverage against most anaerobes (like Fusobacterium) and many Gram-positive cocci (Streptococcus, and many Staphylococcus aureus strains, including some MRSA), but it has essentially no useful activity against Gram-negative aerobic rods like Pseudomonas aeruginosa, which is intrinsically resistant.