Placebo group:take orally the simulated BJY-802 once, one bag, three times a day, one time in the morning, one time in the evening, each time for 8 weeks

A multicenter, randomized, double-blind, placebo parallel control phase IIb study of the efficacy and safety of BJY-802 in the treatment of stable angina pectoris (qi deficiency blood stasis)

A multicenter, randomized, double-blind, placebo parallel control phase IIb study of the efficacy and safety of BJY-802 in the treatment of stable angina pectoris (qi deficiency blood stasis)