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Does Calcium Antagonists Interact with Paricalcitol?

CDI records a major classification for Calcium Antagonists and Paricalcitol. The stored summary is: Concomitant administration of high doses may increase risk of hypercalcemia. Monitor calcium frequently and adjust paricalcitol dose as needed. 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: Major
Paricalcitol Class: Vitamin D2 Analog
Management: Close medical supervision required
Data Source: U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Calcium Antagonists and your doctor is considering prescribing Paricalcitol (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 how frequently you should be monitored while these are co-prescribed
Ask whether any dosage adjustments are needed
Never stop or change either medication without first consulting your healthcare provider

💊 Calcium Antagonists+💊 Paricalcitol(Zemplar)

Severity & Interaction Details

⚠️

major

Use with caution — major interaction

Serious risk of clinically significant harm. Generally avoid; if used, monitor closely.

Severity scale

MinorContra

On record

Yes

Drug A class

—

Drug B class

Vitamin D2 Analog

Source

NLP:paricalcitol

What this means in plain English

Concomitant administration of high doses may increase risk of hypercalcemia. Monitor calcium frequently and adjust paricalcitol dose as needed.

About Calcium Antagonists and Paricalcitol

Paricalcitol is a Vitamin D2 Analog. Paricalcitol is also sold under the brand name Zemplar.

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:paricalcitol

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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.