Have targeting properties. Through passive distribution, active targeting binding or magnetic attraction in the body, the drug microspheres release the drug at the desired site in the body and increase the effective concentration of the drug.
Microsphere formulations have similar advantages as extended release formulations, such as reducing the number of dosing times, reducing peak and trough fluctuations in blood concentration, etc. Biodegradable microspheres also have long-lasting properties.
Masking the bad odor and taste of drugs.
Improves drug stability and reduces gastric irritation.