Question

Select the best answer for the question.

20. Which route of administration has the slowest onset of action?
A. Subcutaneous
B. Oral
C. Intramuscular
D. Intravenous

Answer 1

The slowest onset of action is through the oral route of administration.

Step-by-step explanation:

The route of administration that has the slowest onset of action is oral. When a medication is taken orally, it needs to pass through the digestive system and be absorbed into the bloodstream, which slows down the onset of action.

Learn more about Onset of action through different routes of administration