Opioids and TCAs interact how?

Opioids and TCAs interact how?

• A. Increase risk of CNS depression and prolonged opioid effects.
• B. Decrease CNS depression and shorten opioid effects.
• C. They have no interaction.
• D. They cause tachycardia.

Answer: (A)

This question tests how opioids and TCAs interact in the body. Both drug classes depress the central nervous system, including respiration. When used together, their effects add up, increasing the risk of profound CNS depression and respiratory suppression, and opioid effects can appear prolonged because metabolism and clearance may be affected by the TCA. So the combination raises CNS depression and can lengthen opioid effects, making the option describing that interaction the best choice.

This question tests how opioids and TCAs interact in the body. Both drug classes depress the central nervous system, including respiration. When used together, their effects add up, increasing the risk of profound CNS depression and respiratory suppression, and opioid effects can appear prolonged because metabolism and clearance may be affected by the TCA. So the combination raises CNS depression and can lengthen opioid effects, making the option describing that interaction the best choice.