Swedish Orphan Biovitrum AB (Sobi) announced that the Food and Drug Administration (FDA) has approved a higher strength 20 mg capsule of Orfadin® (nitisinone) for the treatment of Hereditary Tyrosinaemia type-1 (HT-1). HT-1 is a rare genetic disease that affects infants and children. It is progressive and may result in liver and kidney complications and can be fatal if untreated.

