<prompt> Drug remains in the body after three lives is12.5087.507594  <response>: Cp - Cp2 in 1 half-life i.e. 50.0 lost 50.0 Cp - Cp4 in 2 half-lives i.e. 25.0 lost 75.0 Cp - Cp8 in 3 half-lives i.e. 12.5 in body and lost 87.5 Cp - Cp16 in 4 half-lives i.e. 6.25 lost 93.75 Cp - Cp32 in 5 half-lives i.e. 3.125 lost 96.875 Cp - Cp64 in 6 half-lives i.e. 1.563 lost 98.438 Cp - Cp128 in 7 half-lives i.e. 0.781 lost 99.219 Ref-KDT 7e p30 