1ac536a8_ones_Be_Prevented____ehealthMD__What_it_s_for
[Name of Medication] Oral calcium supplement [General Information] Prevents absorption of oxalate into blood but requires careful supervision and cannot be used by people with kidney problems. [What it's for] 
Reduces oxalate in the body (for calcium oxalate or calcium oxalate and phosphate stones)
Kidney Stones - How Can Kidney Stones Be Prevented? | ehealthMD
What it's for