Background: Androgenetic alopecia [AGA] one of the common scalp hair loss disorders affecting males. Androgenetic alopecia is characterized by progressive miniaturization of hair follicles in the scalp and gradual transformation of terminal hairs into vellus hairs leading to progressive decrease in hair density. The pattern of loss follows the scale developed by Hamilton and later extended by Norwood.
Aim of Work: Evaluation of the efficacy of topical cetirizine 1% for the treatment of androgenetic alopecia in male patients.
Patients and methods: This case-controlled study included 30 male patients treated by topical cetirizine1%and 30 male patients as a control group treated by placebo for 6 months recruited from dermatology outpatient clinic of Damietta Hospital and Al-Sarou hospital during the period from September 2018 to August 2019. For each patient, the trichoscopic evaluation was performed before the beginning of treatment and after 6 months of treatment.
Results: Treatment with topical cetirizine 1% in male patients with AGA showed that according to number of new up growing hairs, the majority [56.7%] of cases had no new growing hair, 20.0%, 16.7% &6.7% had one, two and three new hair respectively. On the other hands, all control had no new hair after 6 months of treatment.
Conclusion: Topical cetirizine is effective in the treatment of Androgenetic alopecia in men.