pharmaceutical composition, and methods for using an organic acid or antioxidant, to prevent discoloration caused when tranemaxamic acid and ascorbic acid are incorporated into the same composition, and to produce a solid pharmaceutical preparation for oral administration.
An object of the present invention is to provide a pharmaceutical composition which is stable without causing discoloration or the like even if tranexamic acid and ascorbic acid are uniformly mixed. The pharmaceutical composition comprising tranexamic acid and ascorbic acid and further comprising an organic acid or an antioxidant other than ascorbic acid or tocopherol as a stabilizer, wherein the components contained in the composition are uniformly mixed.
