A solid preparation containing compound , wherein the definition of compound is as defined in the description, and pioglitazone, which is useful as {HEAD ~ a therapeutic drug} for {TAIL ~ diabetes} and the like and superior in the dissolution property, chemical stability and dissolution stability, is provided 
A solid preparation containing compound , wherein the definition of compound is as defined in the description , and pioglitazone , which is useful as { HEAD ~ a therapeutic drug } for { TAIL ~ diabetes } and the like and superior in the dissolution property , chemical stability and dissolution stability , is provided
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