Advances in drug delivery systems: Work in progress still needed?

Area of Science:

• Pharmaceutical Sciences
• Drug Delivery Technologies
• Nanotechnology

Background:

• Conventional oral dosage forms (tablets, capsules) often exhibit low bioavailability and poor patient compliance.
• Novel drug delivery systems aim to overcome these limitations by improving drug absorption and reducing administration frequency.
• Pediatric and geriatric populations benefit significantly from advanced delivery methods due to ease of administration and reduced risks.

Purpose of the Study:

• To provide an overview of novel drug delivery systems for oral administration.
• To critically compare traditional drug delivery methods with advanced, engineered systems.
• To highlight innovations in improving drug bioavailability and patient compliance.

Main Methods:

• Review of emerging drug delivery technologies, including fast dissolving systems, self-emulsifying formulations, osmotic devices, nanotechnology, and vesicular systems.
• Comparative analysis of the advantages and disadvantages of novel systems versus conventional dosage forms.
• Exploration of formulation factors and materials enabling targeted delivery and controlled release.

Main Results:

• Orally disintegrating films offer advantages over fast dissolving tablets by mitigating suffocation risks.
• Self-emulsifying formulations enhance oral bioavailability of hydrophobic drugs by bypassing dissolution and first-pass metabolism.
• Osmotic devices provide controlled drug release independent of gastrointestinal conditions, while nanotechnology and vesicular systems enable targeted and sustained delivery.

Conclusions:

• Novel drug delivery systems represent a significant advancement over traditional oral formulations.
• These advanced systems offer improved therapeutic efficacy, enhanced patient compliance, and targeted drug action.
• The integration of nanotechnology and innovative formulation strategies is key to future drug delivery innovations.