(A) Cell survival (CI) was detected under the indicated treatment concentrations of puerarin from 0 to 40 h. (B) Statistical analysis of the CI data in the groups treated with different concentration of puerarin at 0, 1, 2, 4, 8, 12, and 24 h. (C) The beating rate (BR) was recorded under the indicated treatment concentrations of puerarin from 0 to 40 h. (D) Statistical analysis of the BR data in the groups treated with different concentration of puerarin at 0, 1, 2, 4, 8, 12, and 24 h. N.S: P >0.05.