Rationale for Site Specific Drug Delivery (Tomilinson, 1991)
1. To reach previously inaccessible domains e.g. intracellular site,
bacteria, viruses parasites etc.
2. Exclusive drug delivery to the specific cells or diseased site in
the body.
3. Reduction in the drug dose and side effects.
4. To control the rate and frequency of drug delivery at the
pharmacological receptor.
5. To protect the drug and the body from one another until it
reaches at the desired site of action.