ISSN: 2329-6631
Department of Pharmacology, University of the West Indies, Kingston, Jamaica
| Assistant Professor, Department of Computer Science & Engineering, I.K. Gujral Punjab Technical University, Bhikhiwind Campus (since June 2017). |
Research Article
Comparison of the Topical Analgesic Effects of a Novel Diclofenac Microemulsion to a Marketed Diclofenac Macroemulsion Formulation in Rats Using the Tail Flick Test
Author(s): Tarique Benbow* and Jacqueline Campbell
Current topical preparations do not provide optimal topical drug delivery. Microemulsions have been proposed to
increase drug penetration across the skin, leading to increased bioavailability and efficacy of the drug product. This
study compares the topical analgesic effects of novel diclofenac diethylamine (DDEA) water-in-oil (w/o)
microemulsion to a marketed diclofenac diethylamine (DDEA) oil-in-water (o/w) macroemulsion (Voltaren Emulgel ®)
in the treatment of acute thermal pain using the rat tail flick test. Eighteen (N=18) Sprague-Dawley rats were divided
into three (3) groups (n=6). The groups were administered the novel microemulsion of DDEA (test group), the
marketed macroemulsion of diclofenac (positive control group) and the microemulsion alone (negative control
group); the rat tail flick test was performed after topical administration to ass.. View More»