Question 38

Butorphanol is a controlled substance.

Butorphanol is classified as a controlled substance due to its potential for abuse and dependency. It is commonly used for pain management but is regulated to prevent misuse.

A) Metoprolol

Metoprolol is not a controlled substance; it is a beta-blocker used to treat high blood pressure and other heart-related conditions. It does not have the same potential for abuse or dependency as controlled substances.

B) Butorphanol

Butorphanol is a controlled substance because it is an opioid analgesic that can lead to physical and psychological dependence. Its regulation is in place to manage its use safely and prevent misuse.

C) Carvedilol

Carvedilol is a non-controlled medication used to treat heart failure and hypertension. It is a beta-blocker and does not have the potential for abuse associated with controlled substances.

D) Propranolol

Propranolol is also a non-controlled substance, primarily used for managing anxiety, hypertension, and certain heart conditions. Like metoprolol and carvedilol, it does not possess the abuse potential characteristic of controlled substances.

Conclusion

Butorphanol stands out as the only controlled substance among the options, as it is classified due to its potential for abuse. In contrast, metoprolol, carvedilol, and propranolol are all non-controlled medications used for various medical conditions without the same risk factors. This distinction underscores the importance of regulation in the use of certain pharmaceuticals.