Drug interactions
Peginterferon alfa 2b + Protriptyline
Severity: Minor
Peginterferon alfa 2b and Protriptyline: 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
Peginterferon alfa-2b may modestly alter CYP2D6 activity, potentially changing protriptyline exposure. Interferons also commonly cause depression, so antidepressant response should be followed.
What this interaction means in plain words
Peginterferon alfa 2b and Protriptyline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Possible modulation of CYP2D6 metabolism by interferon.
What to do
Monitor clinical response and anticholinergic or cardiac effects, and adjust the protriptyline dose as needed.
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?
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Other interactions of Peginterferon alfa 2b
Frequently asked questions
Can I take Peginterferon alfa 2b with Protriptyline?
MediHelp rates the interaction as minor. Peginterferon alfa 2b and Protriptyline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Peginterferon alfa-2b may modestly alter CYP2D6 activity, potentially changing protriptyline exposure. Interferons also commonly cause depression, so antidepressant response should be followed.
How serious is the interaction between Peginterferon alfa 2b and Protriptyline?
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 clinical response and anticholinergic or cardiac effects, and adjust the protriptyline dose as needed.
What other medicines interact with Peginterferon alfa 2b?
MediHelp also lists interactions of Peginterferon alfa 2b with, for example, Aldesleukin, Deferiprone, Pexidartinib. The full list is on the Peginterferon alfa 2b page.
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