Clindamycin is part of which antibiotic class that can augment neuromuscular blockade?

Clindamycin is part of which antibiotic class that can augment neuromuscular blockade?

• A. Aminoglycosides
• B. Lincosamines
• C. Macrolides
• D. Tetracyclines

Answer: (B)

Clindamycin belongs to the lincosamide class. Members of this class can enhance the effects of nondepolarizing neuromuscular blockers, leading to a deeper or more prolonged blockade. The reason is that these drugs can interfere with neuromuscular transmission by reducing acetylcholine release at the presynaptic terminal and/or increasing the postsynaptic muscle fiber’s sensitivity to acetylcholine. Clinically, this means when a patient receiving clindamycin is given a nondepolarizing blocker (like vecuronium), you may see a stronger or longer-lasting blockade than expected, so be prepared to adjust dosing and monitor neuromuscular function carefully. While other antibiotic classes can interact with neuromuscular blockers as well, clindamycin’s classification as a lincosamide is the reason it’s associated with this effect.

Clindamycin belongs to the lincosamide class. Members of this class can enhance the effects of nondepolarizing neuromuscular blockers, leading to a deeper or more prolonged blockade. The reason is that these drugs can interfere with neuromuscular transmission by reducing acetylcholine release at the presynaptic terminal and/or increasing the postsynaptic muscle fiber’s sensitivity to acetylcholine. Clinically, this means when a patient receiving clindamycin is given a nondepolarizing blocker (like vecuronium), you may see a stronger or longer-lasting blockade than expected, so be prepared to adjust dosing and monitor neuromuscular function carefully. While other antibiotic classes can interact with neuromuscular blockers as well, clindamycin’s classification as a lincosamide is the reason it’s associated with this effect.