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Drug interactions

Ansofaxine + Lisdexamfetamine

Severity: Major

Ansofaxine and Lisdexamfetamine: major interaction.

Last updated Sources: US FDA label

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

Ansofaxine is a serotonin-norepinephrine-dopamine reuptake inhibitor and lisdexamfetamine releases monoamines including serotonin. The combination can increase the risk of serotonin syndrome and additive cardiovascular stimulation.

What this interaction means in plain words

Ansofaxine and Lisdexamfetamine 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.

Evidence level: Moderate

Why it happens

Additive serotonergic and noradrenergic activity from reuptake inhibition and amphetamine-induced monoamine release.

What to do

Use the lowest effective doses and monitor for serotonin syndrome and blood pressure changes, especially during initiation or titration. Discontinue the serotonergic agents if toxicity develops.

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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References

Frequently asked questions

Can I take Ansofaxine with Lisdexamfetamine?

MediHelp rates the interaction as major. Ansofaxine and Lisdexamfetamine 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. Ansofaxine is a serotonin-norepinephrine-dopamine reuptake inhibitor and lisdexamfetamine releases monoamines including serotonin. The combination can increase the risk of serotonin syndrome and additive cardiovascular stimulation.

How serious is the interaction between Ansofaxine and Lisdexamfetamine?

MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for serotonin syndrome and blood pressure changes, especially during initiation or titration. Discontinue the serotonergic agents if toxicity develops.

What other medicines interact with Lisdexamfetamine?

MediHelp also lists interactions of Lisdexamfetamine with, for example, Isocarboxazid, Linezolid, Phenelzine. The full list is on the Lisdexamfetamine page.

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