Question

Which route gives fastest drug absorption?

• A. Oral
• B. Intramuscular
• C. Subcutaneous
• D. Transdermal

Hint:

Among oral, subcutaneous, transdermal, and intramuscular routes, intramuscular route generally gives faster absorption due to better blood supply.

Answer 1

The Correct Option is B

Concept:
The rate of drug absorption depends on the route of administration, blood supply at the site, and formulation of the drug.

Step 1: Oral drugs must pass through the gastrointestinal tract before absorption. This usually takes more time.

Step 2: Transdermal absorption is slow because the drug has to pass through the skin.

Step 3: Subcutaneous injection gives absorption from the tissue under the skin, but it is generally slower than intramuscular injection.

Step 4: Intramuscular route has better blood supply than subcutaneous tissue, so absorption is faster.

Step 5: Among the given options, intramuscular route gives the fastest drug absorption. \[ \boxed{\text{Intramuscular}} \]