The invention relates to an oral pharmaceutical composition comprising the combination of an ibuprofen salt or S-ibuprofen with L-arginine andor the pharmaceutically acceptable salts thereof, and additionally pharmaceutically acceptable vehicles andor excipients. A test write current is sent to a reference memory cell and the effect of the test current on the orientation of the magnetization in the reference cell is monitored. The load-balancing algorithm attempts to spread the multi-connection slices across center stage switches as evenly as possible, to increase the probability that future multi-connection slices can be added without needing to rearrange existing slices.