Tetrapotassium [mu(2)-N-carboxylato-D-penicillaminato(3-)-5:6kappa(2)S:S][mu(2)-D-penicillaminato(1-)-2:3kappa(2)S:S]tetrakis[mu(2)-D-penicillaminato(2-)]-1:2kappa(3)N,S:S;1:6kappa(3)N,S:S;3:4kappa(3)S:N,S;4:5kappa(3)N,S:S-2,3,5,6-tetragold(I)-1,4-dinickel(II) ethanol monosolvate decahydrate.