Lithium-induced kidney problems.  Serious problems are unusual, but monitoring is key.
D018692:Antimanic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D001714:Bipolar Disorder / Q000188:drug therapy*; D005919:Glomerular Filtration Rate / Q000187:drug effects; D006801:Humans; D007671:Kidney Concentrating Ability / Q000187:drug effects; D007677:Kidney Function Tests; D016651:Lithium Carbonate / Q000009:adverse effects* / Q000627:therapeutic use; D011141:Polyuria / Q000139:chemically induced / Q000175:diagnosis; D051437:Renal Insufficiency / Q000139:chemically induced* / Q000175:diagnosis; D012307:Risk Factors; D013894:Thirst / Q000187:drug effects
D018692:Antimanic Agents; D016651:Lithium Carbonate