the elimination half-life of the two oral forms was about 5 h in young adults , and the half-life was only moderately longer in elderly subjects , with large individual variations : 8.28 +/- 5.51 h for tromethamine fosfomycin and 11.80 +/- 6.86 h for calcium fosfomycin .
C0543454
tromethamine
C0016610
fosfomycin