Skip to content

Drug interactions

Bupivacaine + Captopril-hydrochlorothiazide

Severity: Minor

Bupivacaine and Captopril-hydrochlorothiazide: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Local anesthetic use, particularly neuraxial block, can cause hypotension from sympathetic blockade. Patients on ACE inhibitors and diuretics may have more pronounced hypotension during anesthesia.

What this interaction means in plain words

Bupivacaine and Captopril-hydrochlorothiazide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Bupivacaine belongs to Central Nervous System; Captopril-hydrochlorothiazide belongs to Cardiovascular.

Evidence level: Low

Why it happens

Additive hypotension from sympathetic blockade with renin-angiotensin inhibition and volume depletion.

What to do

Monitor blood pressure during neuraxial or regional anesthesia and be ready to treat hypotension with fluids or vasopressors. The anesthesia team should know about ACE inhibitor and diuretic use.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Bupivacaine and Captopril-hydrochlorothiazide, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Bupivacaine with Captopril-hydrochlorothiazide?

MediHelp rates the interaction as minor. Bupivacaine and Captopril-hydrochlorothiazide have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Local anesthetic use, particularly neuraxial block, can cause hypotension from sympathetic blockade. Patients on ACE inhibitors and diuretics may have more pronounced hypotension during anesthesia.

How serious is the interaction between Bupivacaine and Captopril-hydrochlorothiazide?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood pressure during neuraxial or regional anesthesia and be ready to treat hypotension with fluids or vasopressors. The anesthesia team should know about ACE inhibitor and diuretic use.

What other medicines interact with Captopril-hydrochlorothiazide?

MediHelp also lists interactions of Captopril-hydrochlorothiazide with, for example, Aliskiren, Dofetilide, Sacubitril / valsartan. The full list is on the Captopril-hydrochlorothiazide page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in