ACid Tranexamic or Terlipressin for Initial Emergency Treatment of Mild to seVere hEmoptysis: a Randomized Trial.

Inclusion Criteria: * Patients over 18 years, under 90 years * Mild to severe hemoptysis that has been going on for less than 7 days * Total expectorate blood ranging from 50 ml to 200 ml * Admission in emergency department or ICU for less than 12 hours * Social security affiliation * Signed informed consent * For child-bearing aged women, efficient contraception includes oral oestrogen- progestin, oral progestin, progestin implants and all types of intrauterine devices Exclusion Criteria: * Need for mechanical ventilation * Cystic fibrosis * Pregnancy or breast feeding * Contraindication for contrast agents injection (renal failure with creatinin clearance \< 30mL/min, know allergy to contrast agents injection) * Known hypersensitivity to TXA or TER or one of its excipients * Know previous cardiac arrhythmia (atrial fibrillation, atrial flutter..) * Contraindication to TXA (including renal failure with creatinin clearance \< 30mL/min) or TER therapy : * acute myocardial infarction in the 6 past months, * intrathecal injection in the 3 past months, * seizure in the past 3 months * Participation in another interventional study or being in the exclusion period at the end of a previous study. * Patient under tutorship or / guardianship, and incapable to give informed consent