Pharmaceutical composition and application thereof

A kit, wherein the kit consists of:

• a first pharmaceutical composition, consisting of:
• (a) a first active ingredient selected from the group consisting of salvianolic acid B, a stereoisomer thereof, a crystalline form thereof, a pharmaceutically acceptable salt, or a combination thereof, and a pharmaceutically acceptable carrier;
• and
• a second pharmaceutical composition, consisting of:
• (b) a second active ingredient selected from the group consisting of ginsenoside Rg1, a stereoisomer thereof, a crystal form thereof, a pharmaceutically acceptable salt, or any combinations thereof;
• and a pharmaceutically acceptable carrier;
• wherein, the first pharmaceutical composition and the second pharmaceutical composition are administered in combination and a weight ratio of the first active ingredient to the second active ingredient is 5:(1.9-3.1), wherein the weight ratio is based on the salvianolic acid B and the ginsenoside Rg1.