铁皮石斛和西洋参能改善甲亢型阴虚小鼠的虚弱症状，两药合用可有效地保护阳虚小鼠免于死亡。两药均能对抗阿托品对兔唾液分泌的抑制作用。合用后还能促进正常家兔的唾液分泌。本研究用实验验证了铁皮石斛和西洋参的养阴生津功效，并发现两药合用具有协同作用。

Results of the study showed that Dendrobium candicum and domestically cultivated Panax quinquefolius can alleviate asthenic symptoms in mice with thyroidism-type "Yin" deficiency. Combined use of these two drugs protected these mice from death. Both drug antagonized the inhibitory effect of atropine on salivary secretion in rabbits, and when used in combination even increased salivary secretion in nomal rabbits. These results proved that D. candicum and domestically cultivated P.quinquefolius Possessed the effects of nourishing "Yin" and promoting glandular secretion with a synergistic effect when used in combination.