No, it's poisonous. According to Sohu. Com, Pugua bitter contains glycoside toxins, which are not easy to be destroyed and decomposed when heated, and will lead to food poisoning after eating. Poisoning symptoms of Pugua bitter will appear within 1 ~ 2 hours, ranging from dry mouth, dizziness, nausea, vomiting, fatigue and lethargy to abdominal pain, diarrhea, dehydration, bloody stool and even life-threatening.