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Does Phentolamine Mesylate Interact with Lidocaine?

CDI records a minor classification for Phentolamine Mesylate and Lidocaine. The stored summary is: Lidocaine concentration increased immediately after phentolamine mesylate intraoral injection, but AUC and Cmax values were not affected. Patients taking both medications should consult their healthcare provider before starting, stopping, or changing the dosage of either drug. This record was extracted from drug labeling through openFDA. NIH/NLM RxNorm is used for drug identities. The summary and severity classification are CDI's processed information, not a verbatim source quotation. Product, route, and patient circumstances matter.

Severity: Minor
Lidocaine Class: Amide Local Anesthetic
Management: Generally manageable
Data Source: U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Phentolamine Mesylate and your doctor is considering prescribing Lidocaine (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
Never stop or change either medication without first consulting your healthcare provider

💊 Phentolamine Mesylate(Oraverse)+💊 Lidocaine(LMX)

Severity & Interaction Details

✅

minor

Minor classification in CDI

This classification is not an individual safety assessment. Ask your pharmacist how the record applies to your medications.

Severity scale

MinorContra

On record

Yes

Drug A class

—

Drug B class

Amide Local Anesthetic

Source

NLP:phentolamine mesylate

What this means in plain English

Lidocaine concentration increased immediately after phentolamine mesylate intraoral injection, but AUC and Cmax values were not affected.

About Phentolamine Mesylate and Lidocaine

Lidocaine is an Amide Local Anesthetic. You may recognize them by the brand names Oraverse and LMX.

Source and Limitations

This record was produced by automated extraction from drug-label information, including AI processing. The summary and mechanism are not verbatim FDA quotations. The drug profiles below may describe different formulations from the source label. Confirm the exact product and route with your pharmacist. This page does not establish independent clinical review.

📖 Source: NLP:phentolamine mesylate

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How this information is prepared: CDI uses automated extraction, including AI, to summarize drug labeling from openFDA and includes separately identified curated-reference records. RxNorm helps identify medications; it does not verify interaction claims. Extracted summaries and CDI severity classifications can contain errors and are not verbatim FDA statements or independent clinical review. 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.