NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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What is a common adverse effect listed for Arginine vasopressin receptor antagonists?

  1. Hair loss

  2. Constipation

  3. Thirst

  4. Decreased appetite

The correct answer is: Thirst

Arginine vasopressin receptor antagonists are a type of medication that block the action of vasopressin, a hormone responsible for regulating water and electrolyte balance in the body. One potential adverse effect of this type of medication is increased thirst, also known as polydipsia. This is because blocking vasopressin can lead to increased urine production, which can make a person feel more thirsty. Hair loss, constipation, and decreased appetite are not commonly listed as adverse effects of arginine vasopressin receptor antagonists.