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Drug Interactions between Alvaiz and cladribine

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

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Interactions between your drugs

Moderate

cladribine eltrombopag

Applies to: cladribine and Alvaiz (eltrombopag)

GENERALLY AVOID: Oral bioavailability and systemic exposure of cladribine may be increased by potent inhibitors of breast cancer resistance protein (BCRP) while intracellular distribution and renal elimination of cladribine may be altered by potent inhibitors of equilibrative nucleoside transporter 1 (ENT1) and concentrative nucleoside transporter 3 (CNT3). The mechanism involves inhibition of ENT1, CNT3, and/or BCRP as cladribine is a substrate of each of these transporter systems. The clinical relevance remains unknown.

MANAGEMENT: Coadministration of potent ENT1, CNT3, or BCRP transporter inhibitors should be avoided during the 4 to 5-day oral cladribine treatment cycles. If coadministration is required, consider concomitant alternatives that exhibit no or minimal inhibition of ENT1, CNT3, or BCRP. If this is not possible, dose reduction to the minimum mandatory dose, separation in the timing of administration, and careful patient monitoring is recommended.

References (3)
  1. (2001) "Product Information. Leustatin (cladribine)." Ortho Biotech Inc
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  3. Cerner Multum, Inc. "Australian Product Information."

Drug and food interactions

Moderate

cladribine food

Applies to: cladribine

ADJUST DOSING INTERVAL: Oral cladribine may increase the bioavailability of other drugs, which may increase the risk or severity of adverse reactions. Cladribine tablets may contain hydroxypropyl betadex, which could form a complex with the active ingredients of other drugs, especially agents with low solubility. The clinical relevance of this interaction remains unknown.

MANAGEMENT: Administration of oral cladribine should be separated from any other oral drug by at least 3 hours.

References (3)
  1. (2001) "Product Information. Leustatin (cladribine)." Ortho Biotech Inc
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  3. Cerner Multum, Inc. "Australian Product Information."
Moderate

eltrombopag food

Applies to: Alvaiz (eltrombopag)

ADJUST DOSING INTERVAL: Food may reduce the oral bioavailability of eltrombopag. In healthy volunteers, a standard high-fat breakfast significantly decreased plasma eltrombopag peak plasma concentration (Cmax) by 65% and systemic exposure (AUC) by 59% and delayed Tmax by one hour. The calcium content of this meal may have also contributed to this decrease in exposure. In another study, adult subjects administered a single 25 mg dose of eltrombopag for oral suspension with a high-calcium, moderate-fat, moderate-calorie meal exhibited a 79% decrease in Cmax and 75% decrease in AUC of eltrombopag. Administration of eltrombopag 2 hours after the high-calcium meal decreased eltrombopag Cmax by 48% and AUC by 47%, while administration 2 hours before the high-calcium meal decreased eltrombopag Cmax by 14% and AUC by 20%.

ADJUST DOSING INTERVAL: Polyvalent cations such as aluminum, calcium, iron, magnesium, and zinc can significantly reduce the gastrointestinal absorption of eltrombopag due to chelation. In one clinical trial, administration of a single 75 mg dose of eltrombopag with an antacid containing 1524 mg aluminum hydroxide and 1425 mg magnesium carbonate resulted in an approximately 70% decrease in eltrombopag Cmax and AUC.

MANAGEMENT: Eltrombopag should be taken on an empty stomach one hour before or two hours after a meal. Additionally, eltrombopag should be taken at least 2 hours before or 4 hours after any products that contain polyvalent cations such as antacids, mineral supplements, dairy products, and fortified juices.

References (2)
  1. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  2. (2008) "Product Information. Promacta (eltrombopag)." GlaxoSmithKline

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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