Drug interactions
Dexamethasone + Pegaspargase
Severity: Moderate
Dexamethasone and Pegaspargase: 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
Pegaspargase may increase dexamethasone exposure and, together with its own effects on lipids and coagulation, may heighten glucocorticoid toxicities such as osteonecrosis, hyperglycemia and infection. Both drugs are commonly given together in acute lymphoblastic leukemia regimens.
What this interaction means in plain words
Dexamethasone and Pegaspargase 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.
Dexamethasone belongs to Endocrine; Pegaspargase belongs to Oncology.
Why it happens
Asparaginase-related reduction in protein synthesis may reduce dexamethasone clearance or binding, increasing exposure; the mechanism is not fully established.
What to do
Monitor for glucocorticoid toxicity including glucose, bone pain and infection. Consider the sequence and timing of dosing and treat adverse effects early.
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?
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Other interactions of Pegaspargase
- Etodolac + Pegaspargase Major
- Ketorolac + Pegaspargase Major
- Mefenamic acid + Pegaspargase Major
- Acetylsalicylic acid + Pegaspargase Moderate
- Argatroban + Pegaspargase Moderate
- Celecoxib + Pegaspargase Moderate
Other interactions of Dexamethasone
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
Frequently asked questions
Can I take Dexamethasone with Pegaspargase?
MediHelp rates the interaction as moderate. Dexamethasone and Pegaspargase 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. Pegaspargase may increase dexamethasone exposure and, together with its own effects on lipids and coagulation, may heighten glucocorticoid toxicities such as osteonecrosis, hyperglycemia and infection. Both drugs are commonly given together in acute lymphoblastic leukemia regimens.
How serious is the interaction between Dexamethasone and Pegaspargase?
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 glucocorticoid toxicity including glucose, bone pain and infection. Consider the sequence and timing of dosing and treat adverse effects early.
What other medicines interact with Pegaspargase?
MediHelp also lists interactions of Pegaspargase with, for example, Etodolac, Ketorolac, Mefenamic acid. The full list is on the Pegaspargase page.
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