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Does Oxymetazoline Hydrochloride Interact with Protease Inhibitors?

Oxymetazoline Hydrochloride and Protease Inhibitors have a moderate drug interaction according to U.S. FDA drug labeling data. Caution should be exercised when using alpha 1 adrenergic receptor antagonists with oxymetazoline. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This information is based on official FDA drug labeling sourced from OpenFDA and the NIH National Library of Medicine.

Severity: Moderate
Management: Monitor for effects
Data Source: U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Oxymetazoline Hydrochloride and your doctor is considering prescribing Protease Inhibitors (or vice versa), make sure to:

Inform your doctor and pharmacist of all current medications, including over-the-counter drugs and supplements
Ask whether the benefits of combining these medications outweigh the risks for your specific situation
Ask what symptoms to watch for that would indicate the interaction is causing problems
Ask whether any dosage adjustments are needed
Never stop or change either medication without first consulting your healthcare provider

💊 Oxymetazoline Hydrochloride(Rhofade)+💊 Protease Inhibitors(Prolastin)

Severity & Interaction Details

🟡

moderate

Be aware — moderate interaction

Documented interaction with manageable risk. May require dose adjustment or monitoring.

Severity scale

MinorContra

On record

Yes

Drug A class

—

Drug B class

—

Source

NLP:oxymetazoline hydrochloride

What this means in plain English

Caution should be exercised when using alpha 1 adrenergic receptor antagonists with oxymetazoline.

About Oxymetazoline Hydrochloride and Protease Inhibitors

You may recognize them by the brand names Rhofade and Prolastin. Oxymetazoline Hydrochloride is applied to the skin.

Recent research & FDA safety updates

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Auto-aggregated from PubMed E-utilities and FDA safety data.

FDA

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PubMed

Six-month efficacy and safety of oxymetazoline hydrochloride 0.1% in Japanese patients with acquired blepharoptosis: a phase 3 study.about Oxymetazoline Hydrochloride · 2026-04

PubMed

Safety Analysis of Oxymetazoline Eye Drops for Blepharoptosis Using the FDA Adverse Event Reporting System.about Oxymetazoline Hydrochloride · 2026-04

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Data integrity: Every interaction shown is extracted directly from official U.S. FDA drug labeling via openFDA and the U.S. National Library of Medicine (NIH) — no interactions are invented, inferred, or manually edited. Maintained by CheckDrugInteractions.com. See our methodology or report a correction at support@checkdruginteractions.com.

Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine, supplemented with a small number of well-established interactions from curated clinical references. For informational purposes only. Always consult your pharmacist or physician.