Oral tablets are a type of passive drug delivery system because they rely on the natural processes of the body to absorb and distribute the drug.

Transdermal patches work by allowing the drug to diffuse through the skin and into the bloodstream.

Liposomes are an example of a targeted drug delivery system because they can be designed to deliver drugs specifically to certain cells or tissues.

Sustained-release drug delivery systems offer several advantages, including increased bioavailability, reduced side effects, and improved patient compliance.

Implantable pumps are a type of implantable drug delivery system that can be used to deliver drugs continuously over a period of time.

Biodegradable drug delivery systems offer several advantages, including reduced side effects, improved patient compliance, and elimination of the need for surgery.

Intrathecal injections are a type of drug delivery system that is used to deliver drugs directly to the brain by injecting them into the cerebrospinal fluid.

Nasal sprays work by allowing the drug to diffuse through the nasal mucosa and into the bloodstream.

Eye drops are a type of drug delivery system that is used to deliver drugs to the eye by instilling them directly into the conjunctival sac.

Controlled-release drug delivery systems offer several advantages, including increased bioavailability, reduced side effects, and improved patient compliance.

Inhalers are a type of drug delivery system that is used to deliver drugs to the lungs by allowing the patient to inhale the drug in aerosol form.

Transmucosal drug delivery systems offer several advantages, including increased bioavailability, reduced side effects, and improved patient compliance.

Enemas are a type of drug delivery system that is used to deliver drugs to the gastrointestinal tract by instilling them directly into the rectum.

Topical drug delivery systems offer several advantages, including reduced side effects, improved patient compliance, and increased bioavailability.

Topical creams are a type of drug delivery system that is used to deliver drugs to the skin by applying them directly to the affected area.