131 Star Gooseberry Leaf Alkaloid papaverine Excessive consumption of the leaf causes dizziness, drowsiness, constipation. Papaverine in uncooked sauropus affects vasodilation, may cause bronchiolitis obliterans, a progressive respiratory distress disease. the harmful effect is due to consumption of large quantities of uncooked leaves (4.5 kg) and drinking raw juice rather than stir-fried or boiled leaves. false false 8,577