Salting-out taste-masking system generates lag time with subsequent immediate release.

Area of Science:

• Pharmaceutical Technology
• Drug Delivery Systems

Background:

• Taste masking is crucial for patient compliance, especially with bitter drugs.
• Multiparticulate systems offer advantages in controlled drug release and bioavailability.
• Salting-out effects present a novel approach for taste masking and drug release modulation.

Purpose of the Study:

• To develop a multiparticulate system utilizing salting-out effects for taste masking and enhanced bioavailability.
• To investigate the role of salting-out layers and a water-penetration-control layer in drug release profiles.
• To evaluate the system's potential for effective, safe, and user-friendly drug therapy.

Main Methods:

• Design and preparation of a multiparticulate system with a drug core (acetaminophen), salting-out layer (sodium carbonate and HPMC), and water-penetration-control layer (cetanol).
• Evaluation of drug release profiles, lag time, and the influence of individual layers on release kinetics.
• Comparative analysis of systems with and without salting-out layers to determine their necessity for desired release characteristics.

Main Results:

• The developed system successfully achieved a long lag time and immediate drug release.
• The presence of the water-penetration-control layer, in conjunction with the salting-out layer, significantly increased lag time by maintaining a high concentration of sodium carbonate and suppressing HPMC dissolution.
• Salting-out layers were essential for achieving both a long lag time and subsequent immediate drug release, outperforming formulations lacking these layers.

Conclusions:

• The novel salting-out taste-masking system effectively balances numbness masking and high bioavailability.
• This multiparticulate dosage form demonstrates potential for improved patient compliance and therapeutic outcomes.
• The strategic combination of salting-out and water-penetration-control layers offers a promising approach for advanced drug delivery systems.