Methylmalonic Aciduria, Cblb Type, also known as methylmalonic aciduria cblb type, is related to methylmalonic aciduria due to methylmalonyl-coa mutase deficiency and isolated methylmalonic acidemia, and has symptoms including lethargy, vomiting and respiratory distress. An important gene associated with Methylmalonic Aciduria, Cblb Type is MMAB (Metabolism Of Cobalamin Associated B), and among its related pathways/superpathways are Metabolism and Metabolism of water-soluble vitamins and cofactors. The drugs Metronidazole and Biotin have been mentioned in the context of this disorder. Affiliated tissues include prostate and heart, and related phenotypes are failure to thrive and hypotonia