Antifibrinolytic
Pregnancy: B
Tranexamic Acid (Burns Surgery)
Brand names: Cyklokapron, Cyclokapron
Adult dose
Dose: 1 g IV over 10 min at induction; repeat 1 g over 8 hours; or 500 mg–1 g oral three times daily
Route: IV slow injection or oral
Frequency: two to three times daily
Max: 4 g/day
Burns surgery: reduces blood loss during excision and grafting; CRASH-2 protocol: 1 g over 10 min then 1 g over 8h within 3h of trauma
Paediatric dose
Dose: 10 mg/kg
Route: IV
Frequency: every 8 hours
Max: 1 g per dose
Concentration: 100 mg/mL injection mg/ml
Burns excision and major surgery: 10–15 mg/kg IV before incision; max 1 g per dose; oral available but IV preferred intraoperatively
Dose adjustments
Renal
Reduce dose if eGFR <30 ml/min; avoid or use minimal dose if eGFR <10 ml/min (accumulation and seizure risk)
Hepatic
No dose adjustment required
Paediatric weight-based calculator
Burns excision and major surgery: 10–15 mg/kg IV before incision; max 1 g per dose; oral available but IV preferred intraoperatively
Clinical pearls
- CRASH-2 trial: 9.6% reduction in mortality in major trauma within 3h of injury — time-critical
- Burns excision: TBSA >20% burns surgery involves major blood loss; TXA reduces transfusion requirements
- Seizure risk: dose-dependent IV — mechanism via GABA receptor antagonism; high risk in renal impairment
Contraindications
- Subarachnoid haemorrhage (risk of cerebral oedema)
- Active thromboembolic disease
- Haematuria from upper urinary tract (clot retention risk)
Side effects
- Nausea/vomiting
- Diarrhoea
- Thromboembolic events (theoretical with high doses)
- Seizures (high IV doses — especially in renal failure)
- Visual disturbance
Interactions
- Oral contraceptives (increased thrombotic risk)
- Factor IX complex concentrates (risk of thrombosis)
Monitoring
- Thromboembolic symptoms
- Renal function
- Visual changes (long-term)
Reference: BNFc; BNF 86; CRASH-2 trial; BBA transfusion guidelines. Verify against your local formulary and the latest BNF before prescribing.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- ASA Physical Status Classification · Pre-operative Risk
- Parkland Formula for Burns Fluid Resuscitation · Burns
- Revised Cardiac Risk Index (RCRI / Lee Index) · Perioperative Risk
- Revised Cardiac Risk Index (RCRI) · Pre-operative Risk
- EuroSCORE II · Prognosis
- Gupta Perioperative Risk for MI or Cardiac Arrest (MICA) · Perioperative Risk