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Drug interactions between cholestyramine and Quartette

Results for the following 2 drugs:
cholestyramine
Quartette (ethinyl estradiol/levonorgestrel)

Interactions between your drugs

Moderate

cholestyramine ethinyl estradiol

Applies to: cholestyramine and Quartette (ethinyl estradiol / levonorgestrel)

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with bile-acid binding resins such as cholestyramine may decrease the plasma concentrations and therapeutic effects of estrogens and progestins. The proposed mechanism involves delaying or reducing the absorption of concomitant orally administered drugs by cholestyramine. In addition, it has also been suggested that bile-acid binding resins may interfere with the enterohepatic recycling of estrogens and therefore increase their elimination.

MANAGEMENT: Estrogens and/or progestin-containing oral medications should be administered at least one hour before or four to six hours after bile-acid binding resins such as cholestyramine, colestipol, and colesevelam. Patients receiving this combination should be advised to closely follow dosing schedules to prevent loss of therapeutic effects.

References

  1. "Product Information. Questran (cholestyramine)." Par Pharmaceutical Inc, Chestnut Ridge, NY.
  2. Underhill KL, Rotter BA, Thompson BK, Prelusky DB, Trenholm HL "Effectiveness of cholestyramine in the detoxification of zearalenone as determined in mice." Bull Environ Contam Toxicol 54 (1995): 128-34
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. Arts CJM, Govers CARL, van den Berg H, Wolters MGE, van Leeuwen P, Thijssen JHH "In vitro binding of estrogens by dietary fiber and the in vivo apparent digestibility tested in pigs." J Steroid Biochem Mol Biol 38 (1991): 621-8
  5. Agencia Española de Medicamentos y Productos Sanitarios Healthcare "Centro de información online de medicamentos de la AEMPS - CIMA. Available from: URL: https://cima.aemps.es/cima/publico/home.html." ([2018]):
  6. Cerner Multum, Inc. "Canadian Product Information." O 0 (2015):
View all 6 references
Moderate

cholestyramine levonorgestrel

Applies to: cholestyramine and Quartette (ethinyl estradiol / levonorgestrel)

Consumer information for this interaction is not currently available.

MONITOR: Coadministration with bile-acid binding resins such as cholestyramine may decrease the plasma concentrations and therapeutic effects of estrogens and progestins. The proposed mechanism involves delaying or reducing the absorption of concomitant orally administered drugs by cholestyramine. In addition, it has also been suggested that bile-acid binding resins may interfere with the enterohepatic recycling of estrogens and therefore increase their elimination.

MANAGEMENT: Estrogens and/or progestin-containing oral medications should be administered at least one hour before or four to six hours after bile-acid binding resins such as cholestyramine, colestipol, and colesevelam. Patients receiving this combination should be advised to closely follow dosing schedules to prevent loss of therapeutic effects.

References

  1. "Product Information. Questran (cholestyramine)." Par Pharmaceutical Inc, Chestnut Ridge, NY.
  2. Underhill KL, Rotter BA, Thompson BK, Prelusky DB, Trenholm HL "Effectiveness of cholestyramine in the detoxification of zearalenone as determined in mice." Bull Environ Contam Toxicol 54 (1995): 128-34
  3. Cerner Multum, Inc. "Australian Product Information." O 0
  4. Arts CJM, Govers CARL, van den Berg H, Wolters MGE, van Leeuwen P, Thijssen JHH "In vitro binding of estrogens by dietary fiber and the in vivo apparent digestibility tested in pigs." J Steroid Biochem Mol Biol 38 (1991): 621-8
  5. Agencia Española de Medicamentos y Productos Sanitarios Healthcare "Centro de información online de medicamentos de la AEMPS - CIMA. Available from: URL: https://cima.aemps.es/cima/publico/home.html." ([2018]):
  6. Cerner Multum, Inc. "Canadian Product Information." O 0 (2015):
View all 6 references

Drug and food interactions

Moderate

levonorgestrel food

Applies to: Quartette (ethinyl estradiol / levonorgestrel)

Grapefruit juice may increase the blood levels of certain medications such as levonorgestrel. You may want to limit your consumption of grapefruit and grapefruit juice during treatment with levonorgestrel. However, if you have been regularly consuming grapefruit or grapefruit juice with the medication, then it is advisable for you to talk with your doctor before changing the amounts of these products in your diet, as this may alter the effects of your medication. Contact your doctor if your condition changes or you experience increased side effects. Orange juice is not expected to interact.

Switch to professional interaction data

Minor

ethinyl estradiol food

Applies to: Quartette (ethinyl estradiol / levonorgestrel)

Consumer information for this minor interaction is not currently available. Some minor drug interactions may not be clinically relevant in all patients. Minor drug interactions do not usually cause harm or require a change in therapy. However, your healthcare provider can determine if adjustments to your medications are needed.

For clinical details see professional interaction data.

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.

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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