Overview
Tranexamic acid (TXA) is a synthetic lysine analog developed for its antifibrinolytic properties. It was first introduced in the 1960s and has since become a critical drug in managing excessive bleeding. TXA works by binding to plasminogen, preventing its conversion to plasmin, which breaks down fibrin clots. In clinical settings, TXA is administered orally, intravenously, or topically. It is widely used in surgeries, trauma care, and obstetric hemorrhage. Off-label uses include treating melasma and post-inflammatory hyperpigmentation in dermatology.
Physical and Chemical Properties
Tranexamic acid is a white, odorless crystalline powder with a molecular weight of 157.21 g/mol. It is highly soluble in water but only slightly soluble in organic solvents like ethanol. The compound has a melting point of 386–388°C, indicating high thermal stability. Chemically, TXA is stable under normal storage conditions but should be protected from prolonged exposure to light and moisture. Its antifibrinolytic activity is pH-dependent, with optimal efficacy in neutral to slightly acidic environments.
Main Applications
TXA is primarily used in medical settings to control bleeding. It is a first-line treatment for conditions like menorrhagia, hemophilia, and surgical bleeding. In trauma care, intravenous TXA reduces mortality in patients with severe hemorrhage. The cosmetic industry also utilizes TXA for its skin-brightening effects. Topical formulations are effective in treating melasma and hyperpigmentation by inhibiting melanocyte activation. Research is ongoing for its potential in reducing blood loss in orthopedic and cardiac surgeries.
Safety and Storage
While generally safe, TXA can cause side effects like nausea, diarrhea, or dizziness. Rare but serious risks include thrombosis, particularly in patients with a history of clotting disorders. It is contraindicated in individuals with active thromboembolic disease. Proper storage involves keeping the compound in airtight containers at room temperature, away from direct sunlight. Bulk pharmaceutical-grade TXA should comply with USP or EP standards to ensure purity and efficacy.
B2B Procurement Guide
B2B buyers should prioritize suppliers certified for Good Manufacturing Practices (GMP). Key considerations include batch purity (typically ≥99%), endotoxin levels, and regulatory compliance (e.g., FDA, EMA approval). Prices vary based on quantity and purity, with bulk orders (100+ kg) often discounted. Procurement contracts should specify testing protocols, such as HPLC analysis, to verify quality. Logistics planning must account for TXA’s stability requirements during transportation.
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