Oral Tranexamic Acid — anti-fibrinolytic for melasma
ข้อมูลจำเพาะหลัก
- Plasminogen inhibitor — reduces UV-induced melanocyte stimulation
- Typical dose 250 mg twice daily for 3-6 months
- Mandatory clotting + retinal vascular screening before prescription
- Contraindicated in thrombophilia, prior VTE, retinal occlusion, seizure
- Caution in combined hormonal contraceptive + smoker > 35
- Stop 1 week before planned surgery; deferred in pregnancy / breastfeeding



