Solid pharmaceutical composition containing 1,3,5-triazine derivative or salt thereof

A solid pharmaceutical composition, comprising a compound of formula I or a pharmaceutically acceptable salt thereof, wherein the solid pharmaceutical composition comprises the compound of formula I or the pharmaceutically acceptable salt thereof as an active ingredient and at least one pharmaceutically acceptable excipient;

• wherein the solid pharmaceutical composition comprises 10-100 mg of the compound of formula I or the pharmaceutically acceptable salt thereof;
• or alternatively, the compound of formula I or the pharmaceutically acceptable salt thereof is present in an amount of 0.5-50 wt %, preferably 0.5-30 wt %, and more preferably 1-25 wt %, based on the total mass of the solid pharmaceutical composition.