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Drug Interactions between lumateperone and Omnipaque 350

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

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Interactions between your drugs

Major

iohexol lumateperone

Applies to: Omnipaque 350 (iohexol) and lumateperone

GENERALLY AVOID: Intrathecal administration of iodinated contrast media may induce seizures. Although clinical data are generally lacking, there may be a theoretical risk of increased seizure potential when used with selective serotonin reuptake inhibitors (SSRI antidepressants or anorectics), monoamine oxidase inhibitors, neuroleptic agents, central nervous system stimulants, opioids, tricyclic antidepressants, other tricyclic compounds (e.g., cyclobenzaprine, phenothiazines), and/or any substance that can reduce the seizure threshold (e.g., carbapenems, cholinergic agents, fluoroquinolones, interferons, chloroquine, mefloquine, lindane, theophylline). These agents are often individually epileptogenic and may have additive effects when combined.

MANAGEMENT: Drugs that can lower the seizure threshold should preferably be withheld for at least 48 hours prior to and 24 hours following intrathecal administration of iodinated contrast media, provided that temporary interruption of therapy does not pose an undue risk to the patient. Otherwise, close monitoring is advised during and after contrast administration. The manufacturers typically recommend avoiding concomitant administration of phenothiazines (including those used for their antihistamine properties), monoamine oxidase inhibitors, tricyclic antidepressants, central nervous system stimulants, and psychoactive drugs.

References

  1. Hindmarsh T, Grepe A, Widen L (1975) "Metrizamide-phenothiazine interaction: report of a case with seizures following myelography." Acta Radiol Diagn (Stockh), 16, p. 129-35
  2. (2001) "Product Information. Amipaque (metrizamide)." Nycomed Inc
  3. (2001) "Product Information. Osmovist 240 (iotrolan)." Berlex Canada Inc
  4. (2007) "Product Information. Omnipaque 180 (iohexol)." Amersham Health
  5. (2007) "Product Information. Isovue-M-200 (iopamidol)." Bracco Diagnostics Inc
View all 5 references

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Drug and food interactions

Moderate

lumateperone food

Applies to: lumateperone

GENERALLY AVOID: Grapefruit and grapefruit juice may increase the plasma concentrations of lumateperone. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruit. Inhibition of hepatic CYP450 3A4 may also contribute. The interaction has not been studied with grapefruit but has been reported for other CYP450 3A4 inhibitors. In a drug interaction study, the strong CYP450 3A4 inhibitor itraconazole increased lumateperone peak plasma concentration (Cmax) and systemic exposure (AUC) approximately 3.5- and 4-fold, respectively, while diltiazem (a moderate CYP450 3A4 inhibitor) increased lumateperone Cmax and AUC approximately 2- and 2.5-fold, respectively. In general, the effect of grapefruit juice is concentration-, dose- and preparation-dependent, and can vary widely among brands. Certain preparations of grapefruit juice (e.g., high dose, double strength) have sometimes demonstrated potent inhibition of CYP450 3A4, while other preparations (e.g., low dose, single strength) have typically demonstrated moderate inhibition.

When administered with a high-fat meal, lumateperone Cmax decreased by 33% while its AUC increased by 9% and its median time to peak plasma concentration (Tmax) was delayed by about 1 hour.

MANAGEMENT: Lumateperone should be administered with food. Coadministration of grapefruit or grapefruit juice with lumateperone should be avoided.

References

  1. (2020) "Product Information. Caplyta (lumateperone)." Intra-Cellular Therapies, Inc.

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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.

See also

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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

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