The specific aim is to conduct a randomized, single dose, three-period cross-over bioequivalence (BE) study in at least 18 healthy male and female subjects at a single study center to evaluate the in vivo performance of Nitisinone 10 mg Tablet (Test Product 1) and Nitisinone 10 mg Tablet High Compritol (Test Product 2) to the reference product Orfadin 10 mg capsules.