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Does Carbidopa Levodopa And Entacapone Interact with Phenothiazines?

CDI records a moderate classification for Carbidopa Levodopa And Entacapone and Phenothiazines. The stored summary is: Dopamine D2 receptor antagonists may reduce therapeutic effects of levodopa. The mechanism involves d2 receptor antagonism. 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.

Evidence status

A current label comparison is not yet available for this record. The summary and severity are stored CDI information; they have not been independently validated on this page against the exact product label.

Confirm the medicine, formulation, route, and applicable warning with your pharmacist or prescriber. Independent clinical review has not been recorded.

Saved label reference on DailyMed. This identifier has not been checked here as support for the current claim.

Stored CDI classification: Moderate
Carbidopa Levodopa And Entacapone Class: Aromatic Amino Acid
Management: Confirm exact products with your pharmacist
Data Source: U.S. FDA via OpenFDA

Recorded Mechanism

D2 receptor antagonism

What To Tell Your Doctor or Pharmacist

If you are taking Carbidopa Levodopa And Entacapone and your doctor is considering prescribing Phenothiazines (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

💊 Carbidopa Levodopa And Entacapone(Stalevo)+💊 Phenothiazines

Severity & Interaction Details

🟡

moderate

Stored CDI classification: moderate

A current source comparison has not been recorded for this claim. The stored classification does not determine the clinical significance for your exact products or circumstances.

Severity scale

MinorContra

On record

Yes

Drug A class

Aromatic Amino Acid

Drug B class

—

Source

NLP:carbidopa, levodopa and entacapone

What this means in plain English

Dopamine D2 receptor antagonists may reduce therapeutic effects of levodopa.

About Carbidopa Levodopa And Entacapone and Phenothiazines

Carbidopa Levodopa And Entacapone is an Aromatic Amino Acid. Carbidopa Levodopa And Entacapone is also sold under the brand name Stalevo.

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:carbidopa, levodopa and entacapone

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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.