Oxalicum acidum may be used as a Homeopathic or used simply as a micro-nutritional (metal). Homeopathic potencies accredit their strength and efficacy to the electromagnetic signatures of the original substrate; these are scientifically created dilutions and succussions of medicines such that generally not even a molecule of the original substrate or medicine is present in the medicine.

As a Homeopathic or used simply as a micro-nutritional, Oxalicum acidum has demonstrated effectiveness against the following symptomology: for clinical angina pectoris and other chest affections, convulsions, enuresis, neurasthenia, paralysis, hyperaesthesia, spasms of pain down the extremities, numbness, oxaluria. ( Clarke)