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Does Adefovir Interact with Adefovir Dipivoxil?

Adefovir and Adefovir Dipivoxil have a unknown drug interaction according to U.S. FDA drug labeling data. 7 DRUG INTERACTIONS Since adefovir is eliminated by the kidney, coadministration of adefovir dipivoxil with drugs that reduce renal function or compete for active tubular secretion may increase serum concentrations of either adefovir and/or these coadministered drugs [See Clinical Pharmacology ( 12.3) ]. Patients should be monitored closely for adverse events when adefovir dipivoxil is coadministered with drugs that are excreted renally or with other drugs known to affect renal function [ See Warnings and Precautions (5.2) ] . Adefovir dipivoxil should not be administered in combination with VIREAD [ See Warnings and Precautions (5.5)] . 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
Unknown
Management
Consult your pharmacist
Data Source
U.S. FDA via OpenFDA

What To Tell Your Doctor or Pharmacist

If you are taking Adefovir and your doctor is considering prescribing Adefovir Dipivoxil (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
💊 Adefovir(Hepsera)+💊 Adefovir Dipivoxil(Hepsera)

Severity & Interaction Details

ℹ️
unknown
Interaction documented — severity unclassified
The FDA label notes an interaction but the severity is not classified in our dataset.
Severity scale
MinorContra
On record
Yes
Drug A class
—
Drug B class
—
Source
FDA drug label - adefovir dipivoxil

What this means in plain English

7 DRUG INTERACTIONS Since adefovir is eliminated by the kidney, coadministration of adefovir dipivoxil with drugs that reduce renal function or compete for active tubular secretion may increase serum concentrations of either adefovir and/or these coadministered drugs [See Clinical Pharmacology ( 12.3) ]. Patients should be monitored closely for adverse events when adefovir dipivoxil is coadministered with drugs that are excreted renally or with other drugs known to affect renal function [ See Warnings and Precautions (5.2) ] . Adefovir dipivoxil should not be administered in combination with VIREAD [ See Warnings and Precautions (5.5)] .

About Adefovir and Adefovir Dipivoxil

You may recognize them by the brand names Hepsera and Hepsera. Adefovir Dipivoxil is taken by mouth. Adefovir Dipivoxil additionally carries an FDA boxed warning, the FDA's strongest safety alert.

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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.