  With their 2010-2011 data set, the LHC experiments have started their quest
to observe the rare decays B0_{s/d} -> mu+ mu-. This study will provide very
sensitive probes of New Physics (NP) effects. NP discovery potential lies as
well in the study of the decay B0_d -> K*0 mu+ mu-. Results and perspectives
are presented for studies at the LHC of rare B decays involving flavor changing
neutral currents.
