👉 In medical terminology, a convulsive episode is a sudden and intense physical or emotional reaction that can occur during a person's life. It may be characterized by rapid heartbeat, sweating, shaking, trembling, nausea, vomiting, loss of consciousness, difficulty breathing, or other symptoms that are typically associated with seizures. The term "convulsant" refers to the fact that these episodes involve sudden and severe physical changes in the nervous system, which can be caused by various factors such as an abnormal electrical activity