Which of the following narrow therapeutic index medications is federally classified as a controlled substance?

Rationale

Phenobarbital is federally classified as a controlled substance.

Phenobarbital is a barbiturate with a narrow therapeutic index, and it is classified as a Schedule IV controlled substance in the United States due to its potential for abuse and dependence.

A (Carbamazepine) YOUR ANSWER

Carbamazepine is an anticonvulsant medication primarily used to treat epilepsy and bipolar disorder. While it has a narrow therapeutic index, it is not classified as a controlled substance at the federal level, making it less regulated compared to medications like phenobarbital.

B (Tacrolimus) YOUR ANSWER

Tacrolimus is an immunosuppressant used mainly in organ transplantation to prevent rejection. Despite its narrow therapeutic index, it is not classified as a controlled substance. Instead, it is regulated as a prescription medication without the same restrictions as controlled substances.

D (Argatroban) YOUR ANSWER

Argatroban is an anticoagulant used to treat or prevent blood clots in patients with heparin-induced thrombocytopenia. Though it is a critical medication, it is not classified as a controlled substance, regardless of its therapeutic index.

Conclusion

In summary, among the options provided, phenobarbital stands out as the only medication that is both a narrow therapeutic index drug and federally classified as a controlled substance. This classification reflects its potential for abuse and the need for careful monitoring during use, distinguishing it from other medications listed that, while important, do not carry the same regulatory status.

Which of the following narrow therapeutic index medications is federally classified as a controlled substance?

Phenobarbital is federally classified as a controlled substance.

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test