Sparga is an extract of the root of Asparagus officinalis and is used to resolve Sulfite and/or Sulfa drug toxicity. This condition appears to block the efficient production of reduced L-glutathione, thus inhibiting the body's ability to eliminate toxins. The problem with sulfite and sulfa drugs likely results from a genetic up-regulation of the Cystathionine-Beta-Synthase (CBS) enzyme or a genetic down-regulation of Sulfite Oxidase (SuOx). When this occurs, sulfite and sulfa drugs build up in that individual, blocking glutathione production and blocking uptake of lipoic acid and sulfur amino acids thus making detoxification inefficient, in which case the toxins that are held up in the body weaken the immune system and the organs, and the patient is predisposed to chronic infection. The CBS and/or SuOx genes may cause sulfites and sulfa drugs to build up to a high enough level in the body so as to possibly block the cell's ability to take up sulfur amino acids (cysteine, methionine, and taurine) as well as Glutathione and Lipoic Acid. The absence of these nutrients in the cells can impair detoxification from the cells.