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Oral tranexamic acid, hydroquinone 4% and low-fluence 1064 nm Q-switched Nd:YAG laser for mixed melasma: clinical and dermoscopic evaluation.

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BACKGROUND Tranexamic acid can prevent melanocyte activation by various stimuli. Combining tranexamic acid with either hydroquinone 4% or Q-switched Nd:YAG laser may be associated with greater improvement of melasma. OBJECTIVES… Click to show full abstract

BACKGROUND Tranexamic acid can prevent melanocyte activation by various stimuli. Combining tranexamic acid with either hydroquinone 4% or Q-switched Nd:YAG laser may be associated with greater improvement of melasma. OBJECTIVES We aimed to evaluate the efficacy and safety of oral tranexamic acid alone and combined with either topical hydroquinone 4% or low-fluence 1064nm Q-switched Nd:YAG laser in treatment of mixed melasma. PATIENTS & METHODS Patients were randomly divided into three groups of 20 patients each. Group A were treated with oral tranexamic acid 250 mg twice daily for 3 months; group B were treated with tranexamic acid similarly combined with topical hydroquinone 4% cream; group C were treated with tranexamic acid combined with 2 sessions of 1064nm low fluence Q-switched ND:YAG laser (850-1200 mJ/cm2, 4-5Hz,spot size 4 mm) spaced 4 weeks apart. Patients were followed monthly for 9 months. RESULTS After cessation of therapy, the mean mMASI score was lowest in group B(2.34± 2.37) followed by groups A (6.38±4.04) and C (7.24 ± 4.95).Mean percentage of mMASI score improvement was 35.91 ± 24.13, 77.47 ± 19.07 and 24.94 ± 27.79 in groups A, B and C (p<0.001). There was a significant reduction of telangiectasia in the three groups. Reported side effects were itching & irritation, post-inflammatory hyperpigmentation and gastritis. CONCLUSION Oral tranexamic acid is a tolerable effective treatment modality for melasma. Combining hydroquinone 4% with oral tranexamic acid is associated with a relatively earlier and better cosmetic outcome.

Keywords: hydroquinone; tranexamic acid; oral tranexamic; acid; switched yag; yag laser

Journal Title: Journal of cosmetic dermatology
Year Published: 2021

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