Hydroxychloroquine in Dermatology and Beyond: Recent Update

Area of Science:

• Pharmacology
• Immunology
• Virology

Background:

• Hydroxychloroquine is a widely used dermatologic drug with immunomodulatory, anti-inflammatory, photoprotective, and metabolic effects.
• It possesses a favorable side effect profile, contributing to its frequent clinical application.

Purpose of the Study:

• To review the mechanisms of action of hydroxychloroquine, particularly its antiviral effects.
• To provide updated guidelines on screening, monitoring, drug interactions, side effects, and use in special populations.

Main Methods:

• Literature review of hydroxychloroquine's properties and applications.
• Analysis of its in vitro antiviral activity and proposed mechanisms.
• Compilation of current clinical guidelines and safety information.

Main Results:

• Hydroxychloroquine's antiviral activity is linked to its ability to alkalinize the intracytoplasmic environment, hindering viral entry and protein synthesis.
• The drug has diverse dermatologic applications owing to its multifaceted actions.

Conclusions:

• While hydroxychloroquine shows promise for antiviral applications, robust randomized controlled trials are necessary to establish clinical efficacy.
• Updated guidance on its use, including monitoring and safety, is crucial for clinical practice.