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Does Esterified Estrogens Methyltestosterone Interact with Oral Anticoagulants?

Esterified Estrogens Methyltestosterone and Oral Anticoagulants have a major drug interaction according to U.S. FDA drug labeling data. Androgens may decrease anticoagulant requirements; patients require close monitoring, especially when androgens are started or stopped. The mechanism involves c-17 substituted derivatives of testosterone decrease anticoagulant requirements. 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
Major
Esterified Estrogens Methyltestosterone Class
Androgen
Management
Close medical supervision required
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Esterified Estrogens Methyltestosterone and Oral Anticoagulants occurs because c-17 substituted derivatives of testosterone decrease anticoagulant requirements. Clinically, this means androgens may decrease anticoagulant requirements; patients require close monitoring, especially when androgens are started or stopped. This is classified as a major interaction, meaning it could cause serious harm if not properly managed. Your healthcare provider may need to adjust dosages, substitute one medication, or increase monitoring frequency.

What To Tell Your Doctor or Pharmacist

If you are taking Esterified Estrogens Methyltestosterone and your doctor is considering prescribing Oral Anticoagulants (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
💊 Esterified Estrogens Methyltestosterone(Esterified Estrogens And Methyltestosterone)+💊 Oral Anticoagulants

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
Androgen
Drug B class
—
Source
NLP:esterified estrogens and methyltestosterone

What this means in plain English

Androgens may decrease anticoagulant requirements; patients require close monitoring, especially when androgens are started or stopped.

What the FDA label says

"C-17 substituted derivatives of testosterone decrease anticoagulant requirements"

📖 Source: NLP:esterified estrogens and methyltestosterone

Recent research & FDA safety updates

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

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Data sourced from U.S. FDA drug labeling via openFDA and the NIH National Library of Medicine. For informational purposes only. Always consult your pharmacist or physician.