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Drug interactions

Mavacamten + Sertraline

Severity: Major

Mavacamten and Sertraline: major 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

Mavacamten is cleared largely by CYP2C19, which sertraline inhibits modestly. Higher mavacamten exposure may reduce ejection fraction and lead to heart failure from systolic dysfunction.

What this interaction means in plain words

Mavacamten and Sertraline can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.

Mavacamten belongs to Cardiovascular; Sertraline belongs to Central Nervous System.

Evidence level: Moderate

Why it happens

Sertraline inhibition of CYP2C19 may reduce mavacamten clearance.

What to do

Monitor LVEF and clinical status closely when starting, stopping or changing the sertraline dose. Adjust mavacamten according to echocardiographic findings per labeling.

What to ask your pharmacist

  • Does the benefit of taking both outweigh the risk in my case?
  • Do I need any blood test, ECG or other check while on both?
  • What early warning signs should I watch for, and what should I do if they appear?

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

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Frequently asked questions

Can I take Mavacamten with Sertraline?

MediHelp rates the interaction as major. Mavacamten and Sertraline can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Mavacamten is cleared largely by CYP2C19, which sertraline inhibits modestly. Higher mavacamten exposure may reduce ejection fraction and lead to heart failure from systolic dysfunction.

How serious is the interaction between Mavacamten and Sertraline?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor LVEF and clinical status closely when starting, stopping or changing the sertraline dose. Adjust mavacamten according to echocardiographic findings per labeling.

What other medicines interact with Sertraline?

MediHelp also lists interactions of Sertraline with, for example, Isocarboxazid, Methylene blue, Phenelzine. The full list is on the Sertraline page.

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