Answer
Maribavir should be avoided with tizanidine or theophylline because it induces CYP1A2 in vitro and could reduce their efficacy, with no clinical data available to exclude this interaction in vivo.
Sources for this answer
- LIVTENCITY 200 mg film coated tabletsTakeda UK Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 5Document updated
Sources checked