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Drug interactions

Medroxyprogesterone + Pegvaliase

Severity: Moderate

Medroxyprogesterone and Pegvaliase: moderate 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

Pegvaliase is a PEGylated enzyme, and some injectable medroxyprogesterone products contain polyethylene glycol. Patients may have hypersensitivity reactions, including anaphylaxis, to PEG.

What this interaction means in plain words

Medroxyprogesterone and Pegvaliase can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.

Medroxyprogesterone belongs to Endocrine; Pegvaliase belongs to Miscellaneous.

Evidence level: Low

Why it happens

Shared PEG exposure may add to anti-PEG antibody-mediated hypersensitivity.

What to do

Monitor for signs of hypersensitivity when injectable medroxyprogesterone containing PEG is used with pegvaliase. Consider a non-PEG contraceptive if reactions occur.

What to ask your pharmacist

  • Should I take them at different times of day?
  • Does the dose of either medicine need to change?
  • Is there anything I should avoid, such as alcohol or certain foods, while on both?

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 Medroxyprogesterone with Pegvaliase?

MediHelp rates the interaction as moderate. Medroxyprogesterone and Pegvaliase can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Pegvaliase is a PEGylated enzyme, and some injectable medroxyprogesterone products contain polyethylene glycol. Patients may have hypersensitivity reactions, including anaphylaxis, to PEG.

How serious is the interaction between Medroxyprogesterone and Pegvaliase?

MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for signs of hypersensitivity when injectable medroxyprogesterone containing PEG is used with pegvaliase. Consider a non-PEG contraceptive if reactions occur.

What other medicines interact with Pegvaliase?

MediHelp also lists interactions of Pegvaliase with, for example, Certolizumab pegol, Peginterferon alfa 2a, Peginterferon alfa 2b. The full list is on the Pegvaliase page.

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