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Drug Interactions between Ibrance and Liquid PedvaxHIB

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

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Interactions between your drugs

Moderate

haemophilus b conjugate (PRP-OMP) vaccine palbociclib

Applies to: Liquid PedvaxHIB (haemophilus b conjugate (prp-omp) vaccine) and Ibrance (palbociclib)

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 PROD
  3. "Product Information. Havrix (HepA) (hepatitis A adult vaccine)." SmithKline Beecham PROD
  4. CDC. Centers for Disease Control and Prevention/ "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) (1993): 1-18
  5. "Product Information. Imovax Rabies (rabies vaccine, human diploid cell)." sanofi pasteur (2022):
  6. "Product Information. Biothrax (anthrax vaccine adsorbed)." Emergent BioSolutions Inc. (2003):
  7. Cerner Multum, Inc. "Australian Product Information." O 0
  8. "Product Information. Influenza Virus Vaccine, H5N1, Inactivated (influenza virus vaccine, H5N1, inactivated)." GlaxoSmithKline (2022):
  9. CDC Centers for Disease Control and Prevention "General Best Practice Guidelines for Immunization: Altered Immunocompetence. https://www.cdc.gov/vaccines/hcp/acip-recs/general-recs/immunocompetence.pdf" (2019):
  10. Department of Health. National Health Service "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" (2019):
  11. CDC Centers for Disease Control and Prevention "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" (2022):
  12. Centers for Disease Control and Prevention "Use of COVID-19 vaccines in the U.S. https://www.cdc.gov/vaccines/covid-19/clinical-considerations/interim-considerations-us.html" (2023):
  13. UK Health Security Agency "COVID-19: the green book, chapter 14a https://www.gov.uk/government/publications/covid-19-the-green-book-chapter-14a" (2023):
  14. Public Health Agency of Canada "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" (2023):
  15. Public Health Agency of Canada "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" (2023):
  16. Australian Government. Department of Health and Aged Care "Australian immunisation handbook: COVID-19. https://immunisationhandbook.health.gov.au/contents/vaccine-preventable-diseases/covid-19" (2023):
View all 16 references

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Drug and food interactions

Moderate

palbociclib food

Applies to: Ibrance (palbociclib)

GENERALLY AVOID: Grapefruit and/or grapefruit juice may increase the systemic exposure to palbociclib. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Increased exposure to palbociclib may increase the risk of adverse effects such as infections, neutropenia, leukopenia, anemia, thrombocytopenia, anorexia, nausea, vomiting, diarrhea, stomatitis, alopecia, asthenia, peripheral neuropathy, and epistaxis.

ADJUST DOSING INTERVAL: Food may enhance the oral bioavailability of palbociclib capsules and reduce the intersubject variability of palbociclib exposure. According to the product labeling, absorption and exposure of palbociclib from its oral capsule formulation were very low in approximately 13% of the population when taken in the fasted state. Food intake increased the palbociclib exposure in this small subset of the population but did not alter exposure in the rest of the population to a clinically relevant extent. Compared to palbociclib capsules given under overnight fasted conditions, the population average palbociclib peak plasma concentration (Cmax) and systemic exposure (AUC) increased by 38% and 21%, respectively, when given with high-fat, high-calorie food (approximately 800 to 1000 calories; 150, 250, and 500 to 600 calories from protein, carbohydrate and fat, respectively); by 27% and 12%, respectively, when given with low-fat, low-calorie food (approximately 400 to 500 calories; 120, 250, and 28 to 35 calories from protein, carbohydrate and fat, respectively); and by 24% and 13%, respectively, when given with moderate-fat, standard calorie food (approximately 500 to 700 calories; 75 to 105, 250 to 350 and 175 to 245 calories from protein, carbohydrate and fat, respectively) one hour before and two hours after palbociclib capsule dosing.

MANAGEMENT: Patients should avoid consumption of grapefruit or grapefruit juice while on treatment with palbociclib. To avoid variability in drug absorption between doses, palbociclib capsules should be taken with food. Palbociclib tablet formulations may be taken with or without food.

References

  1. "Product Information. Ibrance (palbociclib)." Pfizer Australia Pty Ltd pfpibrac10620 (2020):
  2. "Product Information. Ibrance (palbociclib)." Pfizer Canada Inc (2021):
  3. "Product Information. Ibrance (palbociclib)." Pfizer Ltd (2023):
  4. "Product Information. Ibrance (palbociclib)." Pfizer U.S. Pharmaceuticals Group (2022):
View all 4 references

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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.

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