Table 1.

Comparison between conventional and controlled DDS. Created based on information from [8, 9, 10]

Conventional DDS	Controlled DDS
No target specificity	Controlled drug release
Rapid elimination from the body	Long residence of drug
Repeated dosing	Low dosing frequency
Low cost	High cost
Better patient compliance	Patient uncertainty
Side effects	Possible toxicity
Accommodate different patients	Tailored treatment for individuals

DDS: Drug delivery systems