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Drug Interactions between Amino-Opti-E and Astagraf XL

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

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Interactions between your drugs

Minor

vitamin E tacrolimus

Applies to: Amino-Opti-E (vitamin e) and Astagraf XL (tacrolimus)

Theoretically, agents that are thought to have immunostimulant properties such as echinacea, vitamin E, cat's claw, and zinc may antagonize the pharmacologic effects of immunosuppressants. However, clinical cases of drug interactions have not been reported.

References

  1. Miller LG "Herbal medicinals: selected clinical considerations focusing on known or potential drug-herb interactions." Arch Intern Med 158 (1998): 2200-11
  2. Pepping J "Echinacea." Am J Health Syst Pharm 56 (1999): 121-2
  3. Izzo AA, Ernst E "Interactions between herbal medicines and prescribed drugs: a systematic review." Drugs 61 (2001): 2163-75
  4. Therapeutic Research Faculty "Natural Medicines Comprehensive Database. http://www.naturaldatabase.com" (2008):
View all 4 references

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Drug and food interactions

Moderate

tacrolimus food

Applies to: Astagraf XL (tacrolimus)

ADJUST DOSING INTERVAL: Consumption of food has led to a 27% decrease in the bioavailability of orally administered tacrolimus.

MANAGEMENT: Tacrolimus should be administered at least one hour before or two hours after meals.

GENERALLY AVOID: Grapefruit juice has been reported to increase tacrolimus trough concentrations. Data are limited, but inhibition of the CYP450 enzyme system appears to be involved.

MANAGEMENT: The clinician may want to recommend that the patient avoid ingesting large amounts of grapefruit juice while taking tacrolimus.

References

  1. "Product Information. Prograf (tacrolimus)." Fujisawa PROD (2001):
  2. Hooks MA "Tacrolimus, a new immunosuppressant--a review of the literature." Ann Pharmacother 28 (1994): 501-11

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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

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

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