Does Bupivacaine Hydrochloride And Epinephrine Bitartrate Interact with Phenothiazines?
Bupivacaine Hydrochloride And Epinephrine Bitartrate and Phenothiazines have a moderate drug interaction according to U.S. FDA drug labeling data. May reduce or reverse the pressor effect of epinephrine. Concurrent use should generally be avoided; if necessary, careful patient monitoring is essential. The mechanism involves reduction or reversal of epinephrine pressor effect. 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
- Moderate
- Management
- Monitor for effects
- Data Source
- U.S. FDA via OpenFDA
How This Interaction Works
The interaction between Bupivacaine Hydrochloride And Epinephrine Bitartrate and Phenothiazines occurs because reduction or reversal of epinephrine pressor effect. Clinically, this means may reduce or reverse the pressor effect of epinephrine. concurrent use should generally be avoided; if necessary, careful patient monitoring is essential. This is classified as a moderate interaction. While it may not require stopping either medication, your healthcare provider should be aware you are taking both so they can monitor for potential effects and adjust treatment if necessary.
What To Tell Your Doctor or Pharmacist
If you are taking Bupivacaine Hydrochloride And Epinephrine Bitartrate 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