The feasibility of using 10% 1,8-cineole as an enhancer for transdermal delivery of haloperidol has been examined. In-vitro transdermal delivery across full-thickness human, rabbit and hairless mouse skins was measured from three polymer gel systems, hypromellose (hydroxypropylmethylcellulose), Carbomer (Carbopol) 940 and macrogol (polyethylene glycol) using Franz cells. Values for the permeability coefficient kp, calculated as the product (Kh)x(D/h2) where these two factors were obtained from curve fitting of the non-steady-state equation over 24 h, were similar from the three formulations. The value of kp from hypromellose was significantly enhanced by cineole by factors of 6.2 (4.6-8.1), 5.6 (5.0-6.2) and 3.0 (2.6-3.4) for human, rabbit and mouse, respectively (mean and 95% confidence intervals). Enhancement ratios for K: 13.3 (8.3-20), 3.1 (2.5-3.9) and 2.0 (1.5-2.6), were higher than those for D: 0.47 (0.41-0.55), 1.8 (1.6-2.1) and 1.5 (1.3-1.8). This suggested that the barrier function of the skin lipids was marginally affected and the main effect was to increase the thermodynamic activity of the drug in the barrier. The enhancement achieved in human skin suggested that delivery could be safely enhanced by terpenoids.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1211/jpp.60.6.0002 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Topical Application onto the Eyelid Skin: Is it a Feasible Delivery Route of Ophthalmic Drugs?
Mini Rev Med Chem
January 2025
Research Institute for Medicines (imed), Faculty of Pharmacy, Universidade de Lisboa, Avenida Professor Gama Pinto, 1649-003 Lisboa, Portugal.
Topical application of ophthalmic drugs remains to be the preferred delivery method. Eye drops lead the pharmaceutical forms due to ease of application. Despite the poor bioavailability of drugs administered topically, especially related to the dilution and excretion by tear fluid, the absence of controlled drug delivery, and the poor compliance within pediatric and senior populations, eye drops and ointments are still the first choices in eye--related disorders management.
View Article and Find Full Text PDFCompensatory effect-based oxidative stress management microneedle for psoriasis treatment.
Bioact Mater
April 2025
State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Biomedical Materials, Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, China.
Reactive oxygen species (ROS) at elevated levels trigger oxidative DNA damage, which is a significant factor in psoriasis exacerbation. However, normal ROS levels are essential for cell signaling, cell growth regulation, differentiation, and immune responses. To address this, we developed ROS control strategies inspired by compensatory effects.
View Article and Find Full Text PDFVialess heterogeneous skin patch for multimodal monitoring and stimulation.
Nat Commun
January 2025
Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu, Republic of Korea.
System-level wearable electronics require to be flexible to ensure conformal contact with the skin, but they also need to integrate rigid and bulky functional components to achieve system-level functionality. As one of integration methods, folding integration offers simplified processing and enhanced functionality through rigid-soft region separation, but so far, it has mainly been applied to modality of electrical sensing and stimulation. This paper introduces a vialess heterogeneous skin patch with multi modalities that separates the soft region and strain-robust region through folded structure.
View Article and Find Full Text PDFMicroneedles as transdermal drug delivery system for enhancing skin disease treatment.
Acta Pharm Sin B
December 2024
State Key Laboratory of Advanced Medical Materials and Devices, Tianjin Key Laboratory of Biomedical Materials, Key Laboratory of Biomaterials and Nanotechnology for Cancer Immunotherapy, Institute of Biomedical Engineering, Tianjin Institutes of Health Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300192, China.
Microneedles (MNs) serve as a revolutionary paradigm in transdermal drug delivery, heralding a viable resolution to the formidable barriers presented by the cutaneous interface. This review examines MNs as an advanced approach to enhancing dermatological pathology management. It explores the complex dermis structure and highlights the limitations of traditional transdermal methods, emphasizing MNs' advantage in bypassing the stratum corneum to deliver drugs directly to the subdermal matrix.
View Article and Find Full Text PDFHyaluronic acid/silk fibroin nanoparticles loaded with methotrexate for topical treatment of psoriasis.
Int J Pharm X
June 2025
State Key Laboratory of Resource Insects, Key Laboratory for Sericulture Biology and Genetic Breeding, Ministry of Agriculture and Rural Affairs, College of Sericulture, Textile and Biomass Sciences, Yibin Academy, Southwest University, Chongqing 400715, China.
Systemic administration of methotrexate (MTX), widely regarded as one of the most effective treatments for psoriasis, poses significant challenges due to its high toxicity, limited solubility, and potential for adverse effects. Consequently, developing a topical form of MTX may offer a safer and more effective strategy for psoriasis management. Silk fibroin (SF), a protein-based biomacromolecule, has shown considerable promise as a nanocarrier for sustained and targeted drug delivery, owing to its exceptional physicochemical and biological properties.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!