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Can you take Benzethonium chloride / lidocaine topical with Mifepristone?

1 drug interaction and 17 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

lidocaine topical miFEPRIStone

Applies to: benzethonium chloride / lidocaine topical and mifepristone

Talk to your doctor before suing miFEPRIStone together with lidocaine topical. Combining these medication may increase the blood levels and effects of lidocaine topical. This may increase the risk of side effects such as drowsiness, dizziness, trembling, numbness, slow heartbeat, or low blood pressure. Talk to your doctor if you have any questions or concerns. Your doctor may already be aware of the risks, but has determined that this is the best course of treatment for you and has taken appropriate precautions and is monitoring you closely for any potential complications. There may be alternative medications that do not interact, or your doctor may recommend a dose adjustment or more frequent monitoring to safely use both medications. Contact your doctor if your condition changes or you experience increased side effects. 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.

Food/lifestyle interactions

Major food/lifestyle interactions

Major:

miFEPRIStone Food/Lifestyle

Applies to: mifepristone

Food may increase the blood levels of miFEPRIStone. If you are only receiving one or two doses, you may take it without regard to meals. However, if you are receiving miFEPRIStone for long-term treatment, you should take it with food at the same time every day to maintain consistent blood levels and effects. Avoid consuming grapefruit, grapefruit juice, grapefruit hybrids, star fruit, or Seville oranges (also known as bitter or sour oranges) during treatment, as it may increase blood levels of miFEPRIStone to undesirable levels and may increase the risk of an irregular heart rhythm that may be serious and potentially life-threatening. You may be more susceptible if you have a heart condition called congenital long QT syndrome, other cardiac diseases, conduction abnormalities, or electrolyte disturbances (for example, magnesium or potassium loss due to severe or prolonged diarrhea or vomiting). Increased blood levels of miFEPRIStone may also increase the risk and/or severity of side effects including headache, dizziness, fatigue, nausea, vomiting, cramping, diarrhea, hypokalemia (low blood potassium), fluid retention, swelling, and high blood pressure. You should seek immediate medical attention if you develop sudden dizziness, lightheadedness, fainting, shortness of breath, or heart palpitations during treatment with these medications. Because miFEPRIStone is cleared slowly from the body, the interaction may occur even after you have stopped taking it for a while, particularly if you are on miFEPRIStone for a prolonged period. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. 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.

Minor food/lifestyle interactions

Minor:

lidocaine topical Food/Lifestyle

Applies to: benzethonium chloride / lidocaine topical

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

Disease interactions

15 potential interactions Applies to: 13 conditions, including Seizures, Abnormal Uterine Bleeding, Heart Disease, Liver Disease, and Long QT Syndrome.

Abnormal Uterine Bleeding

Major:

mifepristone

miFEPRIStone has a major potential interaction with Abnormal Uterine Bleeding.

Mifepristone is contraindicated in women with unexplained vaginal bleeding, and women with endometrial hyperplasia with atypia or endometrial carcinoma, as it promotes endometrial proliferation that may result in endometrium thickening, cystic dilatation of endometrial glands, and vaginal bleeding. It should also be used with caution in women with hemorrhagic disorders or those receiving anticoagulation therapy.

Bleeding Associated with Coagulation Defect

Major:

mifepristone

miFEPRIStone has a major potential interaction with Bleeding Associated with Coagulation Defect.

Mifepristone is contraindicated in women with unexplained vaginal bleeding, and women with endometrial hyperplasia with atypia or endometrial carcinoma, as it promotes endometrial proliferation that may result in endometrium thickening, cystic dilatation of endometrial glands, and vaginal bleeding. It should also be used with caution in women with hemorrhagic disorders or those receiving anticoagulation therapy.

Cardiovascular Conditions and Disorders

Moderate:

mifepristone

miFEPRIStone has a moderate potential interaction with Cardiovascular Conditions and Disorders.

Mifepristone does not reduce serum cortisol levels, and elevated cortisol levels might activate mineralocorticoid receptors which are expressed in cardiac tissue. Caution should be used in patients with underlying heart conditions, including heart failure and coronary vascular disease.

Endometrial Dysplasia

Major:

mifepristone

miFEPRIStone has a major potential interaction with Endometrial Dysplasia.

Mifepristone is contraindicated in women with unexplained vaginal bleeding, and women with endometrial hyperplasia with atypia or endometrial carcinoma, as it promotes endometrial proliferation that may result in endometrium thickening, cystic dilatation of endometrial glands, and vaginal bleeding. It should also be used with caution in women with hemorrhagic disorders or those receiving anticoagulation therapy.

Heart Block

Major:

benzethonium chloride / lidocaine topical

The lidocaine topical in benzethonium chloride / lidocaine topical has a major potential interaction with Heart Block.

Lidocaine is absorbed through intact skin and mucosal membranes following topical administration. Prolonged exposure, large doses, frequent applications and/or use on compromised skin or mucosa can produce systemic effects. At high plasma levels, lidocaine can cause hypotension, bradycardia, and cardiovascular collapse. Therapy with lidocaine topical should be administered cautiously in patients with shock, sinus bradyarrhythmia, or severe heart block. The recommended dosage should not be exceeded. Children and debilitated, elderly, or acutely ill patients should be given reduced dosages commensurate with their age, weight, and physical condition.

Heart Disease

Moderate:

mifepristone

miFEPRIStone has a moderate potential interaction with Heart Disease.

Mifepristone does not reduce serum cortisol levels, and elevated cortisol levels might activate mineralocorticoid receptors which are expressed in cardiac tissue. Caution should be used in patients with underlying heart conditions, including heart failure and coronary vascular disease.

Liver Disease

Major:

benzethonium chloride / lidocaine topical

The lidocaine topical in benzethonium chloride / lidocaine topical has a major potential interaction with Liver Disease.

Lidocaine topical is absorbed through intact skin and mucosal membranes. Prolonged exposure, large doses, and/or application to compromised skin or mucosa can result in elevated plasma concentrations of lidocaine. Lidocaine is rapidly and extensively metabolized by the liver. Less than 10% is eliminated unchanged in the urine. Several inactive and two active forms (MEGX and GX) have been identified. MEGX and GX exhibit antiarrhythmic and convulsant properties. The pharmacokinetic disposition of lidocaine is altered by changes in hepatic function, including hepatic blood flow. Therapy with lidocaine topical should be administered cautiously and dosing modified for patients with compromised hepatic function.

Moderate:

mifepristone

miFEPRIStone has a moderate potential interaction with Liver Disease.

There is limited information on the safety of mifepristone in patients with mild to moderate hepatic impairment, hence the manufacturers recommend that the maximum dose should not exceed 600 mg per day. The use of mifepristone is not recommended in patients with severe hepatic disease as the pharmacokinetics in these patients have not been studied.

Long QT Syndrome

Moderate:

mifepristone

miFEPRIStone has a moderate potential interaction with Long QT Syndrome.

Mifepristone prolongs the QTc interval in a dose-related manner. There is little or no experience with high exposure, concomitant dosing with other QT- prolonging drugs, or potassium channel variants resulting in long QT interval. Caution and monitoring is advised if used in patients with long QT. To minimize risk, the lowest effective dose should always be used.

Organ Transplant

Major:

mifepristone

miFEPRIStone has a major potential interaction with Organ Transplant.

Mifepristone is contraindicated in patients with serious medical conditions, such as patients requiring treatment with systemic corticosteroids for immunosuppression after organ transplantation. Mifepristone antagonizes the effects of glucocorticoids.

Renal Dysfunction

Major:

benzethonium chloride / lidocaine topical

The lidocaine topical in benzethonium chloride / lidocaine topical has a major potential interaction with Renal Dysfunction.

Lidocaine topical is absorbed through intact skin and mucosal membranes. Prolonged exposure, large doses, and/or application to compromised skin or mucosa can result in elevated plasma concentrations of lidocaine. Lidocaine is primarily eliminated by the kidney. Less than 10% is eliminated unchanged in the urine. Two active metabolites (MEGX and GX) have been identified that exhibit antiarrhythmic and convulsant properties. Serum concentrations of lidocaine and the active metabolites are increased and the half-life prolonged in patients with renal impairment. Therapy with lidocaine topical should be administered cautiously and dosing modified for repeated doses in patients with compromised renal function.

Moderate:

mifepristone

miFEPRIStone has a moderate potential interaction with Renal Dysfunction.

No change in the initial dose of mifepristone is needed for renal impairment; but the manufacturers recommend that the maximum dose should not exceed 600 mg per day in these patients.

Seizures

Major:

benzethonium chloride / lidocaine topical

The lidocaine topical in benzethonium chloride / lidocaine topical has a major potential interaction with Seizures.

Lidocaine topical is absorbed through intact skin and mucosal membranes. Prolonged exposure, large doses, and/or application to compromised skin or mucosa can result in elevated plasma concentrations of lidocaine. Seizures can occur as a result of accumulation of active metabolites. Therapy with lidocaine topical should be administered cautiously to patients with or predisposed to seizure disorders.

Shock

Major:

benzethonium chloride / lidocaine topical

The lidocaine topical in benzethonium chloride / lidocaine topical has a major potential interaction with Shock.

Lidocaine is absorbed through intact skin and mucosal membranes following topical administration. Prolonged exposure, large doses, frequent applications and/or use on compromised skin or mucosa can produce systemic effects. At high plasma levels, lidocaine can cause hypotension, bradycardia, and cardiovascular collapse. Therapy with lidocaine topical should be administered cautiously in patients with shock, sinus bradyarrhythmia, or severe heart block. The recommended dosage should not be exceeded. Children and debilitated, elderly, or acutely ill patients should be given reduced dosages commensurate with their age, weight, and physical condition.

Teething Syndrome

Major:

benzethonium chloride / lidocaine topical

The lidocaine topical in benzethonium chloride / lidocaine topical has a major potential interaction with Teething Syndrome.

Topical lidocaine is not recommended to be used in teething infants and young children, as its ingestion is dangerous and potentially fatal. Ingestion of the drug has shown to result in seizures, severe brain injury, and heart problems in children.

More resources

benzethonium chloride / lidocaine topical

A total of 122 drugs are known to interact with benzethonium chloride / lidocaine topical.

mifepristone

A total of 769 drugs are known to interact with mifepristone.

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.