There are many different routes by which drugs can be administered. Describe the pros and cons of the oral route versus the intravenous route

What will be an ideal response?

Oral administration: pros are simpler and relatively safer technique; cons are that absorption from gastrointestinal tract is slow and complicated by many factors.
Intravenous administration: pros are short onset of action, can deliver irritating material since blood vessel walls are relatively insensitive; cons are vein walls lose some elasticity over time and can eventually collapse, can introduce infection directly into bloodstream.