Question

The pharmacology instructor is talking about the drug propylthiouracil (PTU). What would the instructor cite as the primary mode of action for propylthiouracil (PTU)?

A) To destroy part of the thyroid gland
B) To inhibit production of thyroid hormone
C) To suppress the anterior pituitary gland's hormonal secretions
D) To sedate the CNS and suppress cardiac function

Answer 1

B

Step-by-step explanation:

To inhibit production of thyroid hormone.

Propylthiouracil (PTU) is an oral medication that is used to manage hyperthyroidism which is due to an overactive thyroid gland. It is an anti-thyroid drug that has a mechanism of action that is similar to methimazole (Tapazole). Graves' disease is the most common cause of hyperthyroidism.