Answer
Taking fostemsavir tromethamine with elbasvir/grazoprevir is not recommended because temsavir may inhibit OATP1B1/3 and raise grazoprevir plasma concentrations, increasing the risk of ALT elevations, although this interaction has not been studied.
Sources for this answer
- Rukobia 600 mg prolonged-release tabletsViiV Healthcare UK Ltd · emc · SmPC §4.5 Interaction with other medicinal products · Version 6Document updated
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