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Drug Interactions between MLK F2 and Symfi

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

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Interactions between your drugs

Major

lidocaine BUPivacaine

Applies to: MLK F2 (bupivacaine / lidocaine / triamcinolone) and MLK F2 (bupivacaine / lidocaine / triamcinolone)

Additional use of local anesthetics including lidocaine should generally be avoided within 96 hours following administration of BUPivacaine. Because the toxic effects of these medications are additive, using them together requires caution and constant monitoring of vital signs and state of consciousness to prevent serious and potentially life-threatening side effects such as methemoglobinemia (a condition that can deprive tissues and organs of oxygen), central nervous system reactions (e.G., convulsions, unconsciousness, coma, respiratory arrest), and cardiovascular disorders (e.G., low blood pressure, heart block, irregular heart rhythm, cardiac arrest). Patients require immediate medical attention if they develop signs and symptoms of methemoglobinemia such as pale, gray, or blue colored skin (cyanosis); headache; rapid heart rate; shortness of breath; lightheadedness; or fatigue. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

triamcinolone efavirenz

Applies to: MLK F2 (bupivacaine / lidocaine / triamcinolone) and Symfi (efavirenz / lamivudine / tenofovir)

Efavirenz may reduce the blood levels and effects of triamcinolone. Contact your doctor if your symptoms worsen or your condition changes during treatment with these medications. Your doctor may be able to prescribe alternatives that do not interact, or you may need a dose adjustment or more frequent monitoring to safely use both medications. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

lamiVUDine efavirenz

Applies to: Symfi (efavirenz / lamivudine / tenofovir) and Symfi (efavirenz / lamivudine / tenofovir)

Efavirenz may cause liver problems, and using it with other medications that can also affect the liver such as lamiVUDine may increase that risk. You should avoid or limit the use of alcohol while being treated with these medications. Call your doctor immediately if you have fever, chills, joint pain or swelling, unusual bleeding or bruising, skin rash, itching, loss of appetite, fatigue, nausea, vomiting, abdominal pain, dark colored urine, light colored stools, and/or yellowing of the skin or eyes, as these may be signs and symptoms of liver damage. Talk to your doctor or pharmacist if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

efavirenz tenofovir

Applies to: Symfi (efavirenz / lamivudine / tenofovir) and Symfi (efavirenz / lamivudine / tenofovir)

Efavirenz may cause liver problems, and using it with other medications that can also affect the liver such as tenofovir may increase that risk. You should avoid or limit the use of alcohol while being treated with these medications. Call your doctor immediately if you have fever, chills, joint pain or swelling, unusual bleeding or bruising, skin rash, itching, loss of appetite, fatigue, nausea, vomiting, abdominal pain, dark colored urine, light colored stools, and/or yellowing of the skin or eyes, as these may be signs and symptoms of liver damage. Talk to your doctor or pharmacist if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Minor

lidocaine efavirenz

Applies to: MLK F2 (bupivacaine / lidocaine / triamcinolone) and Symfi (efavirenz / lamivudine / tenofovir)

Information for this minor interaction is available on the professional version.

Drug and food interactions

Moderate

lidocaine food

Applies to: MLK F2 (bupivacaine / lidocaine / triamcinolone)

Grapefruit juice may increase the blood levels of lidocaine, which may increase the risk of side effects such as low blood pressure, slow heart rate, irregular heart rhythm, difficulty breathing and convulsions. Cigarette smoking may reduce the blood levels of lidocaine, which may make the medication less effective. It is best to avoid smoking during lidocaine therapy. Consuming cruciferous vegetables (e.G., broccoli, brussels sprouts) may also reduce the blood levels of lidocaine. Talk to a healthcare professional if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Moderate

efavirenz food

Applies to: Symfi (efavirenz / lamivudine / tenofovir)

Taking efavirenz with food increases the amount of medicine in your body, which may increase the frequency of side effects. You should take efavirenz once a day on an empty stomach, preferably at bedtime. Taking it at bedtime may make some side effects such as dizziness, trouble sleeping, drowsiness, trouble concentrating, and/or unusual dreams less bothersome. However, these symptoms may be more severe if efavirenz is used with alcohol or mood-altering (street) drugs. You should avoid driving or operating hazardous machinery until you know how the medication affects you. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

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Minor

tenofovir food

Applies to: Symfi (efavirenz / lamivudine / tenofovir)

Information for this minor interaction is available on the professional version.

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.


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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.