Individual Cmax (A, C) and AUC(0,tlast) (B, D) values of atenolol in 12 healthy volunteers according to SLCO2B1 genotype (*1/*1 A, B and *3/*3 C, D). The volunteers ingested 300 ml soft mineral water, a total of 600 ml, and 1200 ml apple juice with 50 mg atenolol