Small randomized trials in Jerusalem and Norway found that patients treated with elderberry extract recovered from influenza A and influenza B faster than those who received placebos.

• 耶路撒冷和挪威的小规模随机实验发现，服用接骨木提取物的甲型流感(influenzaA)和乙型流感(influenzaB)患者比服用安慰剂的对照组更快康复。