Drug interactions
Lonapegsomatropin + Quinidine
Severity: Minor
Lonapegsomatropin and Quinidine: 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
Growth hormone may increase CYP450 activity, which could lower quinidine exposure and reduce its antiarrhythmic or antimalarial effect. The evidence comes from limited data with other CYP substrates, so the clinical impact on quinidine is uncertain.
What this interaction means in plain words
Lonapegsomatropin and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Lonapegsomatropin belongs to Endocrine; Quinidine belongs to Anti Parasitic.
Why it happens
Growth hormone may induce CYP3A4-mediated metabolism, increasing quinidine clearance; this effect is not firmly established.
What to do
Check clinical response and quinidine concentrations or ECG after starting or changing the dose of lonapegsomatropin. Adjust the quinidine dose if efficacy falls.
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 Lonapegsomatropin and Quinidine, 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.
Other interactions of Quinidine
- Adagrasib + Quinidine Contraindicated
- Arsenic trioxide + Quinidine Contraindicated
- Artemether / lumefantrine + Quinidine Contraindicated
- Chloroquine + Quinidine Contraindicated
- Dofetilide + Quinidine Contraindicated
- Dronedarone + Quinidine Contraindicated
Other interactions of Lonapegsomatropin
Frequently asked questions
Can I take Lonapegsomatropin with Quinidine?
MediHelp rates the interaction as minor. Lonapegsomatropin and Quinidine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Growth hormone may increase CYP450 activity, which could lower quinidine exposure and reduce its antiarrhythmic or antimalarial effect. The evidence comes from limited data with other CYP substrates, so the clinical impact on quinidine is uncertain.
How serious is the interaction between Lonapegsomatropin and Quinidine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check clinical response and quinidine concentrations or ECG after starting or changing the dose of lonapegsomatropin. Adjust the quinidine dose if efficacy falls.
What other medicines interact with Quinidine?
MediHelp also lists interactions of Quinidine with, for example, Adagrasib, Arsenic trioxide, Artemether / lumefantrine. The full list is on the Quinidine 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.
