Final answer:
Hydrogels are drug delivery vehicles that can release medication in a gel-like drop.
Step-by-step explanation:
The drug delivery vehicle described in the question is called a hydrogel. Hydrogels are three-dimensional networks of crosslinked polymers that are capable of holding a large amount of water or biological fluids. In the case of drug delivery, the drug molecules are embedded or dispersed within the hydrogel matrix, and the medication is released in a gel-like drop as the hydrogel absorbs water or dissolves.