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Drug Interactions between eplerenone and Protropin

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

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Interactions between your drugs

Moderate

somatrem eplerenone

Applies to: Protropin (somatrem) and eplerenone

MONITOR: Coadministration with human growth hormone may decrease the plasma concentrations of drugs that are metabolized by CYP450 3A4. Data from an interaction study performed in growth hormone deficient adults suggest that growth hormone (somatropin) administration can increase the clearance of compounds known to be metabolized by cytochrome P450 isoenzymes, especially CYP450 3A4. The clinical significance is unknown.

MANAGEMENT: Caution is advised when human growth hormone is used concurrently with drugs that are known CYP450 3A4 substrates, particularly those with a narrow therapeutic range. Dosage adjustments as well as clinical and laboratory monitoring may be appropriate for some drugs whenever human growth hormone is added to or withdrawn from therapy.

References (4)
  1. (2003) "Product Information. Humatrope (somatropin)." Lilly, Eli and Company
  2. (2004) "Product Information. Zorbtive (somatropin)." Serono Laboratories Inc
  3. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  4. Cerner Multum, Inc. "Australian Product Information."

Drug and food interactions

Major

eplerenone food

Applies to: eplerenone

GENERALLY AVOID: Coadministration with grapefruit juice may increase the plasma concentrations of eplerenone. The primary mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. Inhibition of hepatic CYP450 3A4 may also contribute. In drug interaction studies, administration of a single 100 mg dose of eplerenone in combination with grapefruit juice resulted in a 25% increase in eplerenone systemic exposure (AUC). High blood levels of eplerenone can increase the risk of side effects including hyperkalemia. 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.

MANAGEMENT: It may be advisable for patients to avoid the consumption of grapefruit, grapefruit juice, or supplements that contain grapefruit during treatment with eplerenone.

References (3)
  1. (2002) "Product Information. Inspra (eplerenone)." Searle
  2. (2021) "Product Information. Eplerenone (eplerenone)." MSN Laboratories Europe Ltd
  3. (2023) "Product Information. Eplerenone (Apotex) (eplerenone)." Apotex Pty Ltd

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

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

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