Drug interactions
Efavirenz + Ipratropium-salbutamol
Severity: Minor
Efavirenz and Ipratropium-salbutamol: 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
Efavirenz can prolong the QT interval, particularly at higher exposures, and salbutamol may add to arrhythmic risk through tachycardia and hypokalemia. The clinical risk is small at standard inhaled doses but greater in patients with other risk factors.
What this interaction means in plain words
Efavirenz and Ipratropium-salbutamol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Efavirenz belongs to Anti Virals; Ipratropium-salbutamol belongs to Respiratory.
Why it happens
Additive QT prolongation potential, with beta-2 agonist-induced hypokalemia.
What to do
No action is needed at usual doses; check ECG and electrolytes in patients with other QT risk factors or heavy salbutamol 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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Efavirenz and Ipratropium-salbutamol, 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 14 days on the web. No card needed.
Other interactions of Ipratropium-salbutamol
Other interactions of Efavirenz
- Cobimetinib + Efavirenz Contraindicated
- Dienogest / estradiol valerate + Efavirenz Contraindicated
- Dihydroergotamine intranasal + Efavirenz Contraindicated
- Dihydroergotamine + Efavirenz Contraindicated
- Doravirine + Efavirenz Contraindicated
- Efavirenz + Elbasvir / grazoprevir Contraindicated
Frequently asked questions
Can I take Efavirenz with Ipratropium-salbutamol?
MediHelp rates the interaction as minor. Efavirenz and Ipratropium-salbutamol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Efavirenz can prolong the QT interval, particularly at higher exposures, and salbutamol may add to arrhythmic risk through tachycardia and hypokalemia. The clinical risk is small at standard inhaled doses but greater in patients with other risk factors.
How serious is the interaction between Efavirenz and Ipratropium-salbutamol?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No action is needed at usual doses; check ECG and electrolytes in patients with other QT risk factors or heavy salbutamol use.
What other medicines interact with Ipratropium-salbutamol?
MediHelp also lists interactions of Ipratropium-salbutamol with, for example, Amisulpride, Arsenic trioxide, Carvedilol. The full list is on the Ipratropium-salbutamol 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.
