The present invention provides methods for treating subjects having or at risk of developing a non-primary hyperoxaluria disease or disorder that would benefit from reduction in oxalate, and compositions comprising nucleic acid inhibitors, e.g., double stranded ribonucleic acid (dsRNA) agents or single stranded antisense polynucleotide agents targeting lactate dehydrogenase A (LDHA), hydroxyacid oxidase (HAO1) and/or proline dehydrogenase 2 (PRODH2), for treating such subjects.