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Does Trandolapril And Verapamil Hydrochloride Interact with Lithium?

Trandolapril And Verapamil Hydrochloride and Lithium have a major drug interaction according to U.S. FDA drug labeling data. Increased lithium neurotoxicity and serum levels reported with verapamil component. ACE inhibitor component also increases toxicity risk. Frequent monitoring recommended. The mechanism involves reduced lithium clearance; additive effects from both components. 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
Trandolapril And Verapamil Hydrochloride Class
Angiotensin Converting Enzyme Inhibitor
Management
Close medical supervision required
Data Source
U.S. FDA via OpenFDA

How This Interaction Works

The interaction between Trandolapril And Verapamil Hydrochloride and Lithium occurs because reduced lithium clearance; additive effects from both components. Clinically, this means increased lithium neurotoxicity and serum levels reported with verapamil component. ace inhibitor component also increases toxicity risk. frequent monitoring recommended. 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 Trandolapril And Verapamil Hydrochloride and your doctor is considering prescribing Lithium (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
💊 Trandolapril And Verapamil Hydrochloride(Trandolapril And Verapamil Hydrochloride)+💊 Lithium(Lithium)

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
Angiotensin Converting Enzyme Inhibitor
Drug B class
—
Source
NLP:trandolapril and verapamil hydrochloride

What this means in plain English

Increased lithium neurotoxicity and serum levels reported with verapamil component. ACE inhibitor component also increases toxicity risk. Frequent monitoring recommended.

What the FDA label says

"Reduced lithium clearance; additive effects from both components"

📖 Source: NLP:trandolapril and verapamil hydrochloride

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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.