Chemotherapy and delivery systems--helminths

Area of Science:

• Veterinary Pharmacology
• Parasitology
• Drug Delivery Systems

Background:

• Milbemycins represent the sole novel broad-spectrum anthelmintic chemicals introduced in the past decade.
• Significant advancements have occurred in anthelmintic drug delivery systems and strategies for their rational application.

Purpose of the Study:

• To review novel anthelmintic delivery systems and factors influencing drug efficacy.
• To highlight advancements in drug formulations and their impact on parasite control.

Main Methods:

• Review of current literature on anthelmintic drug delivery systems.
• Analysis of novel formulations such as boluses, ear implants, and liposomes.
• Examination of factors affecting anthelmintic efficacy, including drug combinations and administration parameters.

Main Results:

• Introduction of novel delivery systems like biodegradable boluses with various release mechanisms (corrosion, diffusion, osmotic pressure).
• Development of experimental systems including ear implants and liposomes.
• Identification of synergistic drug combinations potentiating anthelmintic efficacy.
• New insights into factors influencing efficacy, such as co-administration with food and parasite presence.

Conclusions:

• Novel delivery systems and drug combinations offer promising advancements in anthelmintic therapy.
• Enhanced understanding of factors affecting drug efficacy supports the rational and effective use of anthelmintics in veterinary medicine.