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Drug Interactions between diroximel fumarate and Fluvirin

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

influenza virus vaccine, inactivated diroximel fumarate

Applies to: Fluvirin (influenza virus vaccine, inactivated) and diroximel fumarate

MONITOR: The administration of inactivated, killed, or otherwise noninfectious vaccines to immunosuppressed patients is generally safe but may be associated with a diminished or suboptimal immunologic response due to antibody inhibition. Such patients may include those who have recently received or are receiving immunosuppressive agents, antilymphocyte globulins, alkylating agents, antimetabolites, radiation, some antirheumatic agents, high dosages of corticosteroids or adrenocorticotropic agents (e.g., greater than or equal to 2 mg/kg/day or 20 mg/day of prednisone or equivalent for 14 consecutive days or more), or long-term topical or inhaled corticosteroids.

MANAGEMENT: In general, the U.S. Department of Public Health Advisory Committee on Immunization Practices (ACIP) recommends that inactivated or killed vaccines be administered to non-HIV immunosuppressed patients according to the same guidelines as for healthy patients. However, higher dosages, more frequent boosters, and/or serological testing may be required in some cases. Local guidelines and prescribing information for individual vaccines should be consulted. For Haemophilus influenzae b vaccine, some experts recommend that it be administered at least 2 weeks before starting or 3 months after discontinuing chemotherapy when used in patients with Hodgkin's disease. For rabies vaccine, some authorities suggest that immunosuppressive agents should generally be avoided during postexposure therapy except when absolutely necessary for the treatment of other conditions. For SARS-CoV-2 (COVID-19) vaccines, vaccination should generally be completed at least 2 weeks before initiation or resumption of immunosuppressive therapies; however, decisions to delay or temporarily withhold immunosuppressive therapy to complete COVID-19 vaccination should consider the individual's risks relative to their underlying condition. Some authorities recommend administering the COVID-19 vaccine approximately 4 weeks prior to the next scheduled therapy for those on B-cell-depleting therapies on a continuing basis. Additional shots, boosters, and even revaccination may be appropriate depending on age, prior COVID-19 vaccine formulation(s) received, current or planned immunosuppressive therapy, and other factors in individuals with moderate to severe immune compromise due to medical conditions or immunosuppressive medications or treatments (e.g., solid organ transplant recipients on immunosuppressive therapy; patients on active treatment for solid tumor and hematologic malignancies). Vaccines may generally be administered to patients receiving corticosteroids as replacement therapy (e.g., for Addison's disease).

References

  1. "Product Information. Fluzone (influenza virus vaccine, inactivated)." Connaught Laboratories Inc
  2. "Product Information. Omnihib (haemophilus b conjugate vaccine (obsolete))." SmithKline Beecham
  3. "Product Information. Havrix (HepA) (hepatitis A adult vaccine)." SmithKline Beecham
  4. CDC. Centers for Disease Control and Prevention/ (1993) "Recommendations of the advisory committtee on immunization practices (ACIP): use of vaccines and immune globulins in persons with altered immunocompetence." MMWR Morb Mortal Wkly Rep, 42(RR-04), p. 1-18
  5. (2022) "Product Information. Imovax Rabies (rabies vaccine, human diploid cell)." sanofi pasteur
  6. (2003) "Product Information. Biothrax (anthrax vaccine adsorbed)." Emergent BioSolutions Inc.
  7. Cerner Multum, Inc. "Australian Product Information."
  8. (2022) "Product Information. Influenza Virus Vaccine, H5N1, Inactivated (influenza virus vaccine, H5N1, inactivated)." GlaxoSmithKline
  9. CDC Centers for Disease Control and Prevention (2019) General Best Practice Guidelines for Immunization: Altered Immunocompetence. https://www.cdc.gov/vaccines/hcp/acip-recs/general-recs/immunocompetence.pdf
  10. Department of Health. National Health Service (2019) Immunisation Against Infectious Disease - "The Green Book". Chapter 6: Contraindications and special considerations. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/655225/Greenbook_chapter_6.pdf
  11. CDC Centers for Disease Control and Prevention (2022) Interim Clinical Considerations for Use of COVID-19 Vaccines Currently Approved or Authorized in the United States. https://www.cdc.gov/vaccines/covid-19/clinical-considerations/covid-19-vaccines-us.html
  12. Centers for Disease Control and Prevention (2023) Use of COVID-19 vaccines in the U.S. https://www.cdc.gov/vaccines/covid-19/clinical-considerations/interim-considerations-us.html
  13. UK Health Security Agency (2023) COVID-19: the green book, chapter 14a https://www.gov.uk/government/publications/covid-19-the-green-book-chapter-14a
  14. Public Health Agency of Canada (2023) Immunization of immunocompromised persons: Canadian immunization guide https://www.canada.ca/en/public-health/services/publications/healthy-living/canadian-immunization-guide-part-3-vaccination-specific-populations/page-8-immunization-immunocompromised-p
  15. Public Health Agency of Canada (2023) COVID-19 vaccines: Canadian immunization guide. https://www.canada.ca/en/public-health/services/publications/healthy-living/canadian-immunization-guide-part-4-active-vaccines/page-26-covid-19-vaccine.html
  16. Australian Government. Department of Health and Aged Care (2023) Australian immunisation handbook: COVID-19. https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/covid-19
View all 16 references

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Drug and food interactions

Moderate

diroximel fumarate food

Applies to: diroximel fumarate

GENERALLY AVOID: Food does not significantly affect the oral bioavailability of diroximel fumarate. Administration of diroximel fumarate with a high-fat, high-calorie (900 to 1000 calories; 50% from fat) meal did not affect the systemic exposure (AUC) of its active metabolite, monomethyl fumarate (MMF), but decreased its peak plasma concentration (Cmax) by 44% and prolonged the time to reach peak concentration (Tmax) from 2.5 to 7.0 hours relative to administration in the fasted state. In comparison, administration of diroximel fumarate with low-fat, low-calorie (350 to 400 calories; 10 to 15 g fat) and medium-fat, medium-calorie (650 to 700 calories; 25 to 30 g fat) meals decreased the MMF Cmax by approximately 12% and 25%, respectively, while also leaving the AUC unaffected.

GENERALLY AVOID: Coadministration of diroximel fumarate with ethanol may reduce the plasma concentrations of monomethyl fumarate (MMF). The mechanism has not been reported. Following coadministration with 240 mL of 5% v/v and 40% v/v ethanol, the mean Cmax of MMF was reduced by 9% and 21%, respectively, relative to coadministration with water. The AUC of MMF was not significantly altered, indicating that ethanol did not induce dose dumping.

MANAGEMENT: Diroximel fumarate may be taken with or without food; however, high-fat, high-calorie meals or snacks should be avoided. The manufacturer recommends meals or snacks containing no more than 700 calories and no more than 30 grams of fat. Taking diroximel fumarate with food may improve tolerability for patients experiencing flushing or gastrointestinal adverse reactions. The manufacturer also recommends avoiding concomitant use of diroximel fumarate with ethanol.

References

  1. (2022) "Product Information. Vumerity (diroximel fumarate)." Biogen Australia Pty Ltd
  2. (2022) "Product Information. Vumerity (diroximel fumarate)." Biogen Idec Ltd
  3. (2023) "Product Information. Vumerity (diroximel fumarate)." Biogen Idec Inc, SUPPL-9

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Therapeutic duplication warnings

No warnings were found for your selected drugs.

Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.