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Drug Interactions between Effexor XR and ethinyl estradiol / levonorgestrel

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

  • Effexor XR (venlafaxine)
  • ethinyl estradiol/levonorgestrel

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Interactions between your drugs

No interactions were found between Effexor XR and ethinyl estradiol / levonorgestrel. This does not necessarily mean no interactions exist. Always consult your healthcare provider.

Effexor XR

A total of 627 drugs are known to interact with Effexor XR.

ethinyl estradiol / levonorgestrel

A total of 403 drugs are known to interact with ethinyl estradiol / levonorgestrel.

Drug and food interactions


levonorgestrel food

Applies to: 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.

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venlafaxine food

Applies to: Effexor XR (venlafaxine)

Alcohol can increase the nervous system side effects of venlafaxine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with venlafaxine. Do not use more than the recommended dose of venlafaxine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.

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ethinyl estradiol food

Applies to: 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.