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Drug Interactions between Astagraf XL and Sulfatrim Pediatric

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

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Interactions between your drugs

Moderate

sulfamethoxazole tacrolimus

Applies to: Sulfatrim Pediatric (sulfamethoxazole / trimethoprim) and Astagraf XL (tacrolimus)

MONITOR: The concurrent or sequential use of two or more potentially nephrotoxic or neurotoxic drugs may increase the risk of toxicity. Patients who are elderly, debilitated, dehydrated, or who have preexisting renal dysfunction may have a higher risk of developing adverse reactions.

MANAGEMENT: Close clinical and laboratory monitoring of renal and neurologic function and drug serum concentrations (if clinically appropriate) is recommended.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Cerner Multum, Inc. "Australian Product Information." O 0

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Moderate

trimethoprim tacrolimus

Applies to: Sulfatrim Pediatric (sulfamethoxazole / trimethoprim) and Astagraf XL (tacrolimus)

MONITOR: The concurrent or sequential use of two or more potentially nephrotoxic or neurotoxic drugs may increase the risk of toxicity. Patients who are elderly, debilitated, dehydrated, or who have preexisting renal dysfunction may have a higher risk of developing adverse reactions.

MANAGEMENT: Close clinical and laboratory monitoring of renal and neurologic function and drug serum concentrations (if clinically appropriate) is recommended.

References

  1. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  2. Cerner Multum, Inc. "Australian Product Information." O 0

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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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Moderate

sulfamethoxazole food

Applies to: Sulfatrim Pediatric (sulfamethoxazole / trimethoprim)

MONITOR: Two cases have been reported in which patients on sulfamethoxazole-trimethoprim therapy, after consuming beer, reported flushing, heart palpitations, dyspnea, headache, and nausea (disulfiram - alcohol type reactions). First-generation sulfonylureas have been reported to cause facial flushing when administered with alcohol by inhibiting acetaldehyde dehydrogenase and subsequently causing acetaldehyde accumulation. Since sulfamethoxazole is chemically related to first-generation sulfonylureas, a disulfiram-like reaction with products containing sulfamethoxazole is theoretically possible. However, pharmacokinetic/pharmacodynamic data are lacking and in addition, the two reported cases cannot be clearly attributed to the concomitant use of sulfamethoxazole-trimethoprim and alcohol.

MANAGEMENT: Patients should be alerted to the potential for this interaction and although the risk for this interaction is minimal, caution is recommended while taking sulfamethoxazole-trimethoprim concomitantly with alcohol.

References

  1. Heelon MW, White M "Disulfiram-cotrimoxazole reaction." Pharmacotherapy 18 (1998): 869-70
  2. Mergenhagen KA, Wattengel BA, Skelly MK, Clark CM, Russo TA "Fact versus fiction: a review of the evidence behind alcohol and antibiotic interactions." Antimicrob Agents Chemother 64 (2020): e02167-19

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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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