Sorivudin og analoger: der er beskrevet en klinisk signifikant interaktion mellem de to lægemidler, sorivudin og 5- FU, som et resultat af sorivudins hæmning af dihydropyrimidindehydrogenase.
8 Sorivudine and analogues: a clinically significant drug-drug interaction between sorivudine and 5-FU, resulting from the inhibition of dihydropyrimidine dehydrogenase by sorivudine, has been described.