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Can you take Benzethonium chloride / lidocaine topical with Ifosfamide?

1 drug interaction and 16 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

ifosfamide lidocaine topical

Applies to: ifosfamide and benzethonium chloride / lidocaine topical

Some of the medication in lidocaine topical may be absorbed into the bloodstream following local application. When present in sufficient concentrations in the blood, local anesthetics such as lidocaine topical may cause methemoglobinemia, a rare condition that can lead to oxygen deprivation in tissues and vital organs due to reduced oxygen-carrying capacity of the blood. The risk is increased when combined with other medications that can also induce methemoglobinemia such as ifosfamide. Individuals may be more susceptible to developing methemoglobinemia during treatment with these medications if they are very young (especially neonates and infants) or have anemia, diseases of the heart or lungs, blood circulation disorders, liver cirrhosis, shock, sepsis, and certain genetic predispositions such as NADH cytochrome-b5 reductase deficiency, glucose-6-phosphate dehydrogenase deficiency, and hemoglobin M. In addition, use of topical anesthetics on inflamed or abraded areas or broken skin, as well as excessive use such as application of large doses or on larger than recommended areas, can increase absorption and result in high blood levels of the medication. Topical anesthetics that are applied to mucous membranes such as inside the mouth, nose, or throat (e.G., for sore throat; for numbing prior to dental procedures or scoping of the lungs or gastrointestinal tract) may also be absorbed to a significant extent. Close medical supervision is necessary when medications that can cause methemoglobinemia are used together. Do not exceed the recommended dose or frequency and duration of use when treated with products that contain local anesthetics, including some over-the-counter preparations. Signs and symptoms of methemoglobinemia may be delayed by several hours after treatment with topical anesthetics. Patients (or their caregivers) should seek immediate medical attention if they develop a gray discoloration of the skin, mouth, or nail bed; nausea; headache; dizziness; lightheadedness; fatigue; shortness of breath; rapid or shallow breathing; a rapid heartbeat; palpitation; anxiety; or confusion. 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

Moderate food/lifestyle interactions

Moderate:

ifosfamide Food/Lifestyle

Applies to: ifosfamide

Do not consume grapefruit or grapefruit juice while you are receiving treatment with ifosfamide, as this may decrease the anticancer effects of ifosfamide and may increase its adverse effects on your nervous system and your kidneys. Do not use alcohol while you are receiving treatment with ifosfamide. This may increase nervous system side effects such as somnolence, dizziness, confusion, difficulty concentrating, and impairment of thinking and judgment; and may also increase nausea and vomiting. Talk to your doctor or pharmacist if you have questions on how to take this or other medications you are prescribed. Also, avoid activities requiring mental alertness such as 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 medication 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

14 potential interactions Applies to: 11 conditions, including Seizures, Fever, Psychosis, Liver Disease, and Infection.

Bleeding Disorder

Major:

ifosfamide

Ifosfamide has a major potential interaction with Bleeding Disorder.

Treatment with ifosfamide may cause myelosuppression and significant suppression of immune responses, which can lead to severe or fatal infections. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Complete blood counts should be obtained prior to administration of each dose and unless clinically essential, ifosfamide should be withheld if white blood cell counts falls below 1,500 to 2,000/mm3 and/or platelet counts falls below 50,000/mm3. Ifosfamide should be given cautiously, if at all, to patients with presence of an infection, severe immunosuppression or compromised bone marrow reserve, as indicated by leukopenia, granulocytopenia, extensive bone marrow metastases, prior radiation therapy, or prior therapy with other cytotoxic agents.

Bone Marrow Depression/Low Blood Counts

Major:

ifosfamide

Ifosfamide has a major potential interaction with Bone Marrow Depression/Low Blood Counts.

Treatment with ifosfamide may cause myelosuppression and significant suppression of immune responses, which can lead to severe or fatal infections. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Complete blood counts should be obtained prior to administration of each dose and unless clinically essential, ifosfamide should be withheld if white blood cell counts falls below 1,500 to 2,000/mm3 and/or platelet counts falls below 50,000/mm3. Ifosfamide should be given cautiously, if at all, to patients with presence of an infection, severe immunosuppression or compromised bone marrow reserve, as indicated by leukopenia, granulocytopenia, extensive bone marrow metastases, prior radiation therapy, or prior therapy with other cytotoxic agents.

Fever

Major:

ifosfamide

Ifosfamide has a major potential interaction with Fever.

Treatment with ifosfamide may cause myelosuppression and significant suppression of immune responses, which can lead to severe or fatal infections. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Complete blood counts should be obtained prior to administration of each dose and unless clinically essential, ifosfamide should be withheld if white blood cell counts falls below 1,500 to 2,000/mm3 and/or platelet counts falls below 50,000/mm3. Ifosfamide should be given cautiously, if at all, to patients with presence of an infection, severe immunosuppression or compromised bone marrow reserve, as indicated by leukopenia, granulocytopenia, extensive bone marrow metastases, prior radiation therapy, or prior therapy with other cytotoxic agents.

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.

Infection

Major:

ifosfamide

Ifosfamide has a major potential interaction with Infection.

Because of their cytotoxic effects on rapidly proliferating tissues, antineoplastic agents frequently can, to varying extent, induce myelosuppression. The use of these drugs may be contraindicated in patients with known infectious diseases. All patients should be instructed to immediately report any signs or symptoms suggesting infection such as fever, sore throat, or local infection during antineoplastic therapy. Close clinical monitoring of hematopoietic function is recommended.

Major:

ifosfamide

Ifosfamide has a major potential interaction with Infection.

Treatment with ifosfamide may cause myelosuppression and significant suppression of immune responses, which can lead to severe or fatal infections. Patients should be instructed to immediately report any signs or symptoms suggesting bone marrow suppression such as fever, sore throat, local infection, or bleeding. Complete blood counts should be obtained prior to administration of each dose and unless clinically essential, ifosfamide should be withheld if white blood cell counts falls below 1,500 to 2,000/mm3 and/or platelet counts falls below 50,000/mm3. Ifosfamide should be given cautiously, if at all, to patients with presence of an infection, severe immunosuppression or compromised bone marrow reserve, as indicated by leukopenia, granulocytopenia, extensive bone marrow metastases, prior radiation therapy, or prior therapy with other cytotoxic agents.

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:

ifosfamide

Ifosfamide has a moderate potential interaction with Liver Disease.

Ifosfamide is metabolized by the liver to a biologically active form. Metabolic activation and therapeutic activity may be altered in patients with hepatic impairment. Therapy with ifosfamide should be administered cautiously in patients with compromised hepatic function. Clinical monitoring of hepatic function is recommended.

Psychosis

Moderate:

ifosfamide

Ifosfamide has a moderate potential interaction with Psychosis.

Administration of ifosfamide can cause CNS toxicity and other neurotoxic effects. The risk of CNS toxicity and other neurotoxic effects necessitates careful monitoring of the patient. Neurologic manifestations consisting of somnolence, confusion, hallucinations, blurred vision, psychotic behavior, and extrapyramidal symptoms, have been reported following ifosfamide therapy. There have also been reports of peripheral neuropathy associated with ifosfamide Episodes of depressive psychoses and hallucinations have been reported during ifosfamide therapy. These neurological symptoms are usually reversible, but ifosfamide should be discontinued and supportive care maintained until symptoms completely resolve. Therapy with ifosfamide should be administered cautiously in patients with a history of or predisposition to psychotic episodes.

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:

ifosfamide

Ifosfamide has a moderate potential interaction with Renal Dysfunction.

Ifosfamide is primarily eliminated by the kidney. Approximately 12% to 18% of ifosfamide is excreted unchanged in the urine. Additionally, iIfosfamide is both nephrotoxic and urotoxic. Hemorrhagic cystitis due to metabolites excreted in the urine can develop during therapy with ifosfamide. Adequate hydration and use of a prophylactic agent such as mesna prior to each course of ifosfamide therapy can reduce bladder irritation and hematuria. Clinical signs of renal toxicity such as elevation in BUN or serum creatinine or decrease in creatinine clearance have been reported. Therapy with ifosfamide should be administered cautiously in patients with a history of or predisposition to cystitis or impaired renal function. Close clinical monitoring of serum and urinary chemistries is recommended.

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.

ifosfamide

A total of 604 drugs are known to interact with ifosfamide.

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.