Dexamethasone Ophthalmic and Rilpivirine: Interaction Details
A pharmacist-reviewed analysis of the Dexamethasone Ophthalmic and Rilpivirine
interaction: the documented clinical effects, severity rating, onset, mechanism, and management
considerations, with cited references throughout.
Contraindicated: These should generally not be used together.
Major: Potentially serious — often needs a change or close monitoring.
Moderate: Can be significant — usually manageable with monitoring.
Minor: Usually limited clinical impact.
Evidence grades
Established: Well documented — supported by controlled studies or strong clinical data.
Probable: Good supporting evidence, though not definitively proven.
Suspected: Some evidence suggests this interaction, but it is not well established.
Possible: Limited or conflicting evidence; the interaction may occur.
Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a
pharmacist. They describe the documented risk of the combination, not what will necessarily
happen to you — your dose, timing, and health picture all matter.
Worried about symptoms right now? Contact your pharmacist or prescriber, or
call Poison Control at 1-800-222-1222 (US). Call 911 for an emergency.
Onset
unspecified
Evidence
theoretical
Severity
Contraindicated
What happens
Reduced rilpivirine exposure, reduced efficacy of rilpivirine and an increased risk of loss of virologic response
Interaction Deep Dive
Concomitant use of dexAMETHasone (more than a single dose) and rilpivirine is contraindicated as it may lead to decreased rilpivirine plasma concentrations, loss of virologic response, and possible resistance development12.
Why it happens (mechanism)
Induction of CYP3A-mediated metabolism of rilpivirine
Common questions
Can I take Dexamethasone Ophthalmic and Rilpivirine together?
Reduced rilpivirine exposure, reduced efficacy of rilpivirine and an increased risk of loss of virologic response Always confirm with your pharmacist or prescriber before making any change.
How serious is the Dexamethasone Ophthalmic and Rilpivirine interaction?
It is rated contraindicated. These should generally not be used together.
How quickly could this interaction happen?
The documented onset is "unspecified". The timing of this interaction is not well characterized.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
Questions for your pharmacist
Does my dose of Dexamethasone Ophthalmic or Rilpivirine need adjusting while I take them together?
What symptoms should prompt me to call you or my prescriber right away?
Does the timing of my doses matter for this combination?
Is there a safer alternative to one of these medications for me?
Prescription drugs aren't the whole picture — herbal and dietary
supplements can interact with them too. From the evidence-graded Natural Medicines database:
This information is for education, not a substitute for professional medical advice. Do not start,
stop, or change any medication without talking to your pharmacist or prescriber.