Calcium antagonist with inhibitory effect on secretion of parathyroid hormone, its preparation method and its use

摘要

The present invention relates to a calcium antagonist and calcium absorption promoting agent having an action of suppressing the secretion of parathyroid hormone comprising an acid extract of a plant-derived calcium-containing substance by a specific method, a method for producing the same, and a method for preparing the same, The present invention provides a calcium preparation having a calcium antagonistic action and enhanced calcium absorption utilization rate. The calcium preparation is characterized by comprising an aqueous solution obtained by calcining a plant-derived calcium-containing substance under vacuum and further acid-extracted. The calcium-containing substance having the calcium-antagonistic action and the enhancement of the absorption utilization promotion, or the calcium-containing substance derived from the plant, in which the calcium absorption promoting agent is added to the calcium preparation, Is characterized in that it is sintered under reduced pressure or under vacuum and then immersed in strong acid to extract A method of producing a calcium antagonist is required.