Solid oral preparation containing a pyrrolidine derivative with a catechol group

摘要

PCT No. PCT/JP91/00453 Sec. 371 Date Nov. 26, 1991 Sec. 102(e) Date Nov. 26, 1991 PCT Filed Apr. 5, 1991 PCT Pub. No. WO91/15204 PCT Pub. Date Oct. 17, 1991.An oral solid preparation comprising an organic acid or its salt and a catechol compound. The catechol compound is, for example, a pyrrolidine derivative having a catechol group of the following general formula (I). It exhibits an improved absorbability in vivo. (* CHEMICAL STRUCTURE *) (I)