Patienter, som har fået højere doser end de anbefalede, bør derfor overvåges nøje, eftersom nedsat nyrefunktion (inklusiv nyresvigt) og serum - elektrolyt (inklusiv calcium, fosfor og magnesium) forstyrrelser er blevet observeret.
Patients who have received doses higher than those recommended should be carefully monitored, since renal function impairment (including renal failure) and serum electrolyte (including calcium, phosphorus and magnesium) abnormalities have been observed.