Bimatoprost and Latanoprost Ophthalmic: Interaction Details
AI-assisted, pharmacist-reviewed · Source data updated Aug 8, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Latanoprost Ophthalmic
Bimatoprost
How we grade severity & evidence
Severity levels
- 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.
What happens
Decreased efficacy or paradoxical elevations in intraocular pressure
Interaction Deep Dive
Concomitant use of 2 or more prostaglandins or prostaglandin analogs including latanoprost is not recommended. Administration of prostaglandins more than once daily may decrease the intraocular pressure lowering effect or cause paradoxical elevations in intraocular pressure1.
Why it happens (mechanism)
Unspecified
Common questions
Can I take Bimatoprost and Latanoprost Ophthalmic together?
Decreased efficacy or paradoxical elevations in intraocular pressure Always confirm with your pharmacist or prescriber before making any change.
How serious is the Bimatoprost and Latanoprost Ophthalmic interaction?
It is rated major. Potentially serious — often needs a change or close monitoring.
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 Bimatoprost or Latanoprost Ophthalmic 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?
References (1)
- Product Information: ROCKLATAN(TM) ophthalmic solution, netarsudil latanoprost ophthalmic solution. Aerie Pharmaceuticals Inc (per manufacturer), Irvine, CA, 2019. DailyMed
Keep reading about Latanoprost Ophthalmic
Keep reading about Bimatoprost
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Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
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