Novel polypeptide derivatives, acid-addition salts thereof and complexes thereof, having the activities for inhibiting bone calcium absorption, for lowering the blood level of calcium, as analgesics, for inhibiting secretion of the gastric juice. Pharmaceutical composition can be prepared by formulating, at least one of the novel polypeptide derivatives, acid-addition salts thereof and complexes thereof, together with a proteolytic enzyme inhibitors and/or pharmaceutically acceptable acids. The pharmaceutical composition are quite effective as agents for curing hypercalcemia, for curing Peget's disease, for curing osteoporosis, analgetic agent, anti-ulcerative agent and the like.
新型
多肽衍
生物及其酸加成盐和配合物,具有抑制骨
钙吸收、降低血
钙水平、作为镇痛剂和抑制胃酸分泌的活性。可以通过将至少一种新型
多肽衍
生物、其酸加成盐和配合物与蛋白酶抑制剂和/或药用酸一起制剂而成制备药物组合物。该药物组合物对治疗高
钙血症、治疗佩吉特病、治疗骨质疏松症、镇痛剂、抗溃疡剂等方面具有相当有效的作用。