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Drug Interactions between cobimetinib and sodium phosphate p32

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

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Interactions between your drugs

Moderate

sodium phosphate p32 cobimetinib

Applies to: sodium phosphate p32 and cobimetinib

MONITOR: The concomitant use of bone marrow depressants and sodium phosphate P-32 may have additive myelosuppressive effects.

MANAGEMENT: Patients should be monitored for excessive bone marrow suppression during treatment with sodium phosphate P-32. Sodium phosphate P-32 should not be used as part of a sequential treatment with a chemotherapeutic agent. Dose reductions of the other bone marrow depressants may be necessary. The manufacturer's labeling should be consulted for more specific recommendations for each agent involved. Patients should be advised to contact their physician if they develop signs and symptoms of myelosuppression such as pallor, dizziness, fatigue, lethargy, fainting, easy bruising or bleeding, or signs of infection such as fever, chills, sore throat, body aches, and other influenza-like symptoms.

References (1)
  1. AnazaoHealth Corporation (2023) P32 sodium phosphate - p32 sodium phosphate solution https://dailymed.nlm.nih.gov/dailymed/fda/fdaDrugXsl.cfm?setid=735f92e3-cc92-4d9b-afe8-f935a685ee78&type=display

Drug and food interactions

Moderate

cobimetinib food

Applies to: cobimetinib

MONITOR: Grapefruit juice may increase the plasma concentrations of orally administered drugs that are substrates of the CYP450 3A4 isoenzyme, such as cobimetinib. However, the interaction seems to affect primarily those drugs that undergo significant presystemic metabolism by CYP450 3A4 (i.e., drugs with low oral bioavailability), presumably due to the fact that grapefruit juice inhibits primarily intestinal rather than hepatic CYP450 3A4. Because pharmacokinetic interactions involving grapefruit juice are often subject to a high degree of interpatient variability, the extent to which a given patient may be affected is difficult to predict.

MANAGEMENT: Patients who regularly consume grapefruit or grapefruit juice should be monitored for adverse effects and altered plasma concentrations of cobimetinib. Grapefruit and grapefruit juice should be avoided if an interaction is suspected. Orange juice is not expected to interact with these drugs.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2015) "Product Information. Cotellic (cobimetinib)." Genentech

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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