Which statement about CNS depressants is accurate?

• A. They do not cause interactions with other drugs.
• B. There are significant drug-to-drug interactions with benzodiazepines, especially with other CNS depressants.
• C. They are completely safe with no interactions.
• D. They never interact with opioids.

Answer: (B)

CNS depressants can interact in dangerous ways, especially when benzodiazepines are used with other depressants. The accurate statement is that there are significant drug-to-drug interactions with benzodiazepines, particularly when they’re taken with other CNS depressants. These drugs all slow brain activity, so combining them can produce additive or synergistic effects like deeper sedation and, most critically, respiratory depression. This risk is heightened when benzodiazepines are used with alcohol or opioids, or with other sedatives, because the combined effect on breathing and alertness is greater than each drug alone. While some interactions involve how drugs are metabolized, the central concern for patient safety is the potential for dangerous sedation and breathing problems when multiple CNS depressants are used together. The other statements aren’t accurate because CNS depressants do interact with other drugs, safety isn’t guaranteed, and opioids can interact with these medications as well.