A shorter half-life is associated with which of the following risks?

A shorter half-life is associated with which of the following risks?

• A. Decreased tolerance
• B. Developing tolerance
• C. Longer overall effect
• D. Lower side effects

Answer: (B)

Shorter half-life means the drug is cleared quickly, causing plasma levels to fall rapidly between doses. To maintain effect, dosing often becomes more frequent, exposing the body to repeated pharmacologic stimulation. Over time this repeated exposure can lead to receptor desensitization or other adaptive changes, reducing the drug’s effect and requiring higher doses to achieve the same response—tolerance. So the risk tied to a shorter half-life is developing tolerance.

Shorter half-life means the drug is cleared quickly, causing plasma levels to fall rapidly between doses. To maintain effect, dosing often becomes more frequent, exposing the body to repeated pharmacologic stimulation. Over time this repeated exposure can lead to receptor desensitization or other adaptive changes, reducing the drug’s effect and requiring higher doses to achieve the same response—tolerance. So the risk tied to a shorter half-life is developing tolerance.