The irritant response of perilesional skin is a serious limitation of dithranol therapy in psoriasis. No data are available on the actual prevalence and severity of irritation during 24-h dithranol treatment in an inpatient setting. Using a retrospective analysis of 68 patients with psoriasis visiting our inpatient department for dithranol treatment, the occurrence of dithranol irritation was studied. We found a relatively high frequency of dithranol irritation. Furthermore, most irritation occurs at the start of the therapy with relatively low concentrations.
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Eur J Pharmacol
January 2025
Graduate Program in Pharmacology, Federal University of Santa Catarina (UFSC), 88037-000 - Florianópolis (SC), Brazil. Electronic address:
Dithranol is one of the most effective topical medications for treating plaque psoriasis. However, its clinical use is limited by irritative adverse reactions to the skin, such as oedema, erythema, and pruritus, caused by poorly understood mechanisms. Because TRPV1 activation mediates skin irritation caused by several drugs, we conducted blind and randomised experiments in male and female C57BL/6 mice to elucidate the role of TRPV1 in dithranol-induced irritation.
View Article and Find Full Text PDFBackground Psoriasis is a papulosquamous disease with variable morphology, distribution, severity, and course. Chronic plaque psoriasis, or psoriasis vulgaris, is the most common form of psoriasis. Present available preparations for mild to moderate chronic plaque psoriasis for topical use are local corticosteroids, coal tar, dithranol, tazarotene, calcipotriol, tapinarof, and calcineurin inhibitors.
View Article and Find Full Text PDFInt J Biol Macromol
March 2023
Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
Irritant contact dermatitis (ICD) is an inflammatory skin condition characterized by severe eczematous lesions. Nanoparticulate drug delivery is the most predominant way to improve dermal penetration and have gained remarkable recognition for targeted delivery of therapeutic payload and reduced off-target effects. Therefore, the current work aimed to fabricate polyelectrolyte complex nanoparticles (PENPs) containing two natural biodegradable polymers namely; chitosan (CS) and hyaluronic acid (HA) to deliver the non steroidal anti-inflammatory drug etoricoxib (ETX) to the deeper skin layers to alleviate any systemic toxicity and improve its therapeutic efficacy against ICD.
View Article and Find Full Text PDFCurr Drug Res Rev
October 2021
Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, Haryana, India.
Objective: Dithranol (DTH) is a well-known moiety that has long been used promisingly to impede and treat skin disorders, particularly psoriasis. Nowadays, a rekindled interest in the use of DTH for this disorder has been observed. Side effects associated with conventional topical formulations of this moiety have aroused the interest of the scientific community in investigating novel cargos of DTH for psoriasis management.
View Article and Find Full Text PDFJ Cosmet Dermatol
January 2021
Department of Dermatology, Faculty of Medicine, Cairo University, Cairo, Egypt.
Background: Among alopecia areata (AA) treatments, contact irritants (anthralin) and topical immunotherapies (diphenylcyclopropenone) have been successfully used. Chemoexfoliation can potentially be utilized, acting as irritants and consecutively immunomodulators. Peels via therapeutic wounding provoke growth factors and cytokines that may induce hair regrowth.
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