Treatment of Pediatric Post-traumatic Stress Disorder With Memory Reactivation Under the Influence of Propranolol

This study is testing a novel treatment approach for children with post-traumatic stress disorder (PTSD): using propranolol (a heart medication) during a specific memory recall session, with the aim of weakening the emotional power of traumatic memories. This approach is called memory reactivation under propranolol. **You may be eligible if...** - Your child is between 7 and 12 years old - Your child has a diagnosis of PTSD, at least 6 months after the traumatic event - Your child's PTSD symptoms score high on the CPTS-RI scale (≥40) - Your child has a normal resting heart rate and blood pressure - Both parents/guardians and the child speak French **You may NOT be eligible if...** - Your child is outside the age range (younger than 7 or 13 or older) - Your child has a medical condition that makes propranolol unsafe (e.g., heart problems, asthma, low blood pressure) - Your child is currently in psychotherapy or taking psychiatric medications - Your child has another active psychiatric diagnosis (e.g., psychosis, ADHD, bipolar disorder, autism) Talk to your doctor to see if this trial is right for you.