Infection of kidneys, ureters, urinary bladder or urethra is a common side effect of Magbig 50mg Tablet but does not affect everyone. Very few patients have reported of developing renal stones and bladder pain with the use of Magbig 50mg Tablet. Also, patients with compromised kidney function should be careful while using Magbig 50mg Tablet and report any unwanted symptoms related to kidneys to the consulting doctor.