Answer
Ritonavir or cobicistat may reduce clearance of dexamethasone in Ducressa eye drops, increasing its effects and systemic corticosteroid side-effect risk; avoid the combination unless benefits outweigh that risk, with monitoring for systemic corticosteroid effects if combined.
Sources for this answer
- Ducressa 1 mg/ml + 5 mg/ml, eye drops, solutionSanten UK Limited · emc · SmPC §4.5 Interaction with other medicinal products · Version 2Document updated
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