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Drug Interactions between PTE-4 and Symbicort

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

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Interactions between your drugs

Minor

zinc sulfate budesonide

Applies to: PTE-4 (trace elements) and Symbicort (budesonide / formoterol)

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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Minor

budesonide formoterol

Applies to: Symbicort (budesonide / formoterol) and Symbicort (budesonide / formoterol)

Although they are often combined in clinical practice, the concomitant use of beta-2 adrenergic agonists and corticosteroids may result in additive hypokalemic effects. Since beta-2 agonists can sometimes cause QT interval prolongation, the development of hypokalemia may potentiate the risk of ventricular arrhythmias including torsade de pointes. However, clinical data are limited, and the potential significance is unknown. Patients who are receiving systemic or nebulized formulations of beta-2 agonists, high dosages of inhaled beta-2 agonists, or systemic corticosteroid therapy may be at a greater risk of developing hypokalemia.

References

  1. "Product Information. Foradil (formoterol)." Novartis Pharmaceuticals PROD (2001):
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics." O 0
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. Agencia Española de Medicamentos y Productos Sanitarios Healthcare "Centro de información online de medicamentos de la AEMPS - CIMA. https://cima.aemps.es/cima/publico/home.html" (2008):
View all 4 references

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Drug and food interactions

Moderate

budesonide food

Applies to: Symbicort (budesonide / formoterol)

GENERALLY AVOID: Grapefruit juice may increase the plasma concentrations and systemic effects of orally administered budesonide. The proposed mechanism is inhibition of CYP450 3A4-mediated first-pass metabolism in the gut wall by certain compounds present in grapefruits. According to the manufacturer, the systemic exposure of oral budesonide approximately doubles after extensive intake of grapefruit juice.

MANAGEMENT: Patients receiving budesonide should avoid the regular consumption of grapefruits and grapefruit juice to prevent undue increases in plasma budesonide levels and systemic effects.

References

  1. "Product Information. Entocort (budesonide)." AstraZeneca Pharma Inc (2001):

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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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