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Can you take Duloxetine with Mesantoin?

1 drug interaction and 26 additional warnings found for the following 2 drugs:

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Drug interactions

Moderate drug interactions

Moderate:

mephenytoin DULoxetine

Applies to: Mesantoin (mephenytoin) and duloxetine

Treatment with DULoxetine may occasionally cause blood sodium levels to get too low, a condition known as hyponatremia, and using it with some anticonvulsants can increase that risk.

In addition, DULoxetine can cause seizures in susceptible patients, which may reduce the effectiveness of medications that are used to control seizures such as mephenytoin.

Talk to your doctor if you have any questions or concerns. 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.

You should seek medical attention if you experience:

  • nausea
  • vomiting
  • headache
  • lethargy
  • irritability
  • difficulty concentrating
  • memory impairment
  • confusion
  • muscle spasm
  • weakness or unsteadiness

These may be symptoms of hyponatremia.

More severe cases may lead to:

  • hallucination
  • fainting
  • seizure
  • coma
  • even death

Also let your doctor know if you develop seizures or experience an increase in seizures during treatment with DULoxetine.

Additionally, because these medications may cause dizziness, drowsiness, and impairment in judgment, reaction speed and motor coordination, you should avoid driving or operating hazardous machinery until you know how they affect 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.

Food/lifestyle interactions

Moderate food/lifestyle interactions

Moderate:

mephenytoin Food/Lifestyle

Applies to: Mesantoin (mephenytoin)

Mephenytoin levels may decrease when the suspension is given with enteral feedings. This could lead to a loss of seizure control.

You could interrupt the feeding for 2 hours before and after the mephenytoin dose. Alternatively, you may give the mephenytoin suspension diluted in water and flush the tube with water after administration. These would make it easier for your body to absorb the medication. However, this still may not entirely avoid the interaction and may not always be feasible.

You should have your mephenytoin levels checked upon starting and stopping of enteral feedings.

In addition, using mephenytoin together with food may alter the effects of mephenytoin.

Contact your doctor if you experience worsening of seizure control or symptoms of toxicity, including:

  • twitching eye movements
  • slurred speech
  • loss of balance
  • tremor
  • muscle stiffness or weakness
  • nausea
  • vomiting
  • feeling light-headed
  • fainting
  • slow or shallow breathing

If your doctor does prescribe these medications together, you may need a dose adjustment or special test to safely use both medications.

It is important to tell your doctor about all other medications you use, including vitamins and herbs. Ask your doctor before making any changes to your therapy.

Moderate:

DULoxetine Food/Lifestyle

Applies to: duloxetine

DULoxetine may cause liver damage, and taking it with alcohol may increase that risk.

You should avoid or limit the use of alcohol while being treated with DULoxetine.

Call your doctor immediately if you have:

  • fever
  • chills
  • joint pain or swelling
  • excessive tiredness or weakness
  • unusual bleeding or bruising
  • skin rash or itching
  • loss of appetite
  • nausea
  • vomiting
  • dark colored urine
  • yellowing of the skin or the whites of your eyes

These may be symptoms of liver damage.

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.

Disease interactions

24 potential interactions Applies to: 20 conditions, including High Blood Pressure, Depression, Vitamin D Deficiency, Bipolar Disorder, and Urinary Tract Infection.

Abnormal Glucose Tolerance

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Abnormal Glucose Tolerance.

Phenytoin, particularly in high dosages, may cause hyperglycemia by inhibiting insulin release. The drug may also raise serum glucose levels in diabetic patients. Therapy with phenytoin should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during phenytoin therapy, and their antidiabetic regimen adjusted accordingly. The same precautions should also be observed with other hydantoin anticonvulsants (i.e. ethotoin and mephenytoin) because of their structural and pharmacological similarities to phenytoin.

Anemia, Folate Deficiency

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Anemia, Folate Deficiency.

Hydantoin anticonvulsants may interfere with folate metabolism and precipitate macrocytosis and megaloblastic anemia, which usually respond to folic acid therapy. These reactions have been fairly uncommon but may be of concern in patients with megaloblastic anemia or folate deficiency receiving hydantoin therapy.

Bipolar Disorder

Major:

duloxetine

DULoxetine has a major potential interaction with Bipolar Disorder.

Adult and pediatric patients with depression and other psychiatric disorders may experience worsening of their symptoms and may have the emergence of suicidal thoughts and behavior. Patients should be monitored appropriately and observed closely for worsening of their symptoms, suicidality or changes in their behavior, especially during the first few months of treatment, and at times of dose changes. Discontinuing the medication should be considered if symptoms are persistently worse, or abrupt in onset. It may be prudent to refrain from dispensing large quantities of medication to these patients.

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Bipolar Disorder.

Therapy with SNRI antidepressants can cause activation of mania and hypomania and should be used with caution in patients with personal or family history of mania, hypomania, bipolar disorder, and other mood disorders.

Bone Marrow Depression/Low Blood Counts

Major:

Mesantoin

The mephenytoin in Mesantoin has a major potential interaction with Bone Marrow Depression/Low Blood Counts.

Hematologic toxicities have been associated with the use of hydantoin anticonvulsants, particularly mephenytoin. Thrombocytopenia, leukopenia, neutropenia, agranulocytosis, pancytopenia and, rarely, hemolytic anemia, aplastic anemia and pure red cell aplasia have been reported. Therapy with hydantoin anticonvulsants should be administered cautiously in patients with preexisting blood dyscrasias and/or bone marrow depression. Complete blood counts, including platelets, should be performed prior to initiating therapy and regularly for several months thereafter. For mephenytoin, the manufacturer recommends performing counts after 2 weeks on a low dosage, after another 2 weeks when full dosage is reached, then monthly for a year, and every 3 months thereafter. Marked depression of blood counts may be indication for withdrawal of hydantoin therapy.

Dehydration

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Dehydration.

Treatment with SNRI antidepressants can cause hyponatremia. Caution should be used when treating patients with hyponatremia or at greater risk of hyponatremia such as the elderly, patients taking diuretics or who are volume depleted.

Depression

Major:

duloxetine

DULoxetine has a major potential interaction with Depression.

Adult and pediatric patients with depression and other psychiatric disorders may experience worsening of their symptoms and may have the emergence of suicidal thoughts and behavior. Patients should be monitored appropriately and observed closely for worsening of their symptoms, suicidality or changes in their behavior, especially during the first few months of treatment, and at times of dose changes. Discontinuing the medication should be considered if symptoms are persistently worse, or abrupt in onset. It may be prudent to refrain from dispensing large quantities of medication to these patients.

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Depression.

Antiepileptic drugs (AEDs) have been associated with an increased risk of suicidal thoughts or behavior in patients taking these drugs for any indication. Pooled analyses of 199 placebo-controlled clinical studies involving the use of 11 different AEDs showed that patients receiving AEDs had approximately twice the risk of suicidal thinking or behavior compared to patients receiving placebo. AEDs should be administered cautiously in patients with depression or other psychiatric disorders; phentermine-topiramate should be avoided in patients with history of suicidal attempts or active suicidal ideation. The risk of suicidal thoughts and behavior should be carefully assessed against the risk of untreated illness, bearing in mind that epilepsy and many other conditions for which AEDs are prescribed are themselves associated with morbidity and mortality and an increased risk of suicidal thoughts and behavior. Patients, caregivers, and families should be alert to the emergence or worsening of signs and symptoms of depression, any unusual changes in mood or behavior, or the emergence of suicidal thoughts or behavior. If patients have symptoms of suicidal ideation or behavior, a dosage reduction or treatment discontinuation should be considered.

Diabetes Mellitus

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Diabetes Mellitus.

In clinical trials, treatment with duloxetine delayed-release worsened the glycemic control in some patients with diabetes. Caution should be used when using duloxetine in diabetic patients and their glycemic levels should be checked regularly.

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Diabetes Mellitus.

Phenytoin, particularly in high dosages, may cause hyperglycemia by inhibiting insulin release. The drug may also raise serum glucose levels in diabetic patients. Therapy with phenytoin should be administered cautiously in patients with diabetes mellitus, glucose intolerance, or a predisposition to hyperglycemia. Patients with diabetes mellitus should be monitored more closely during phenytoin therapy, and their antidiabetic regimen adjusted accordingly. The same precautions should also be observed with other hydantoin anticonvulsants (i.e. ethotoin and mephenytoin) because of their structural and pharmacological similarities to phenytoin.

Folic Acid/Cyanocobalamin Deficiency

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Folic Acid/Cyanocobalamin Deficiency.

Hydantoin anticonvulsants may interfere with folate metabolism and precipitate macrocytosis and megaloblastic anemia, which usually respond to folic acid therapy. These reactions have been fairly uncommon but may be of concern in patients with megaloblastic anemia or folate deficiency receiving hydantoin therapy.

Glaucoma, Narrow Angle

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Glaucoma, Narrow Angle.

SNRI antidepressants cause pupillary dilation that may trigger an angle closure attack in patients with anatomically narrow angle without iridectomy.

High Blood Pressure

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with High Blood Pressure.

Selective serotonin and norepinephrine reuptake inhibitor antidepressants (SNRIs) have been associated with sustained increases in blood pressure. Therapy with SNRI antidepressants should be administered cautiously in patients with preexisting hypertension. Blood pressure should be assessed prior to initiating treatment and monitored regularly. The dose should be reduced or discontinued if necessary.

Hyponatremia

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Hyponatremia.

Treatment with SNRI antidepressants can cause hyponatremia. Caution should be used when treating patients with hyponatremia or at greater risk of hyponatremia such as the elderly, patients taking diuretics or who are volume depleted.

Liver Disease

Major:

duloxetine

DULoxetine has a major potential interaction with Liver Disease.

Postmarketing studies have reported that duloxetine and some other SNRIs like milnacipran may aggravate preexisting liver disease. The use of duloxetine delayed-release and milnacipran should be avoided in patients with chronic liver disease or cirrhosis.

Major:

Mesantoin

The mephenytoin in Mesantoin has a major potential interaction with Liver Disease.

Hydantoin anticonvulsants are primarily metabolized by the liver. Both metabolic activity and plasma protein binding may be significantly altered in patients with liver disease, resulting in elevated drug levels (total and unbound fraction) and increased risk of toxicity. Therapy with hydantoin anticonvulsants should be administered cautiously in patients with impaired hepatic function. Reduced dosages and slower titration may be necessary. In addition, periodic monitoring of liver function is recommended, since the use of anticonvulsants, including hydantoins, has been associated with hepatotoxicity related to drug hypersensitivity. Hepatic failure and death have occurred. Hydantoin therapy should be discontinued and not readministered if evidence of liver damage is observed and felt to be drug-related.

Mania

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Mania.

Therapy with SNRI antidepressants can cause activation of mania and hypomania and should be used with caution in patients with personal or family history of mania, hypomania, bipolar disorder, and other mood disorders.

Porphyria

Major:

Mesantoin

The mephenytoin in Mesantoin has a major potential interaction with Porphyria.

The use of phenytoin has rarely been associated with exacerbation of porphyria. Therapy with phenytoin should be administered cautiously in patients with porphyria. The same precaution should also be observed with other hydantoin anticonvulsants (i.e. ethotoin and mephenytoin) because of their structural and pharmacological similarities to phenytoin.

Psychosis

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Psychosis.

Antiepileptic drugs (AEDs) have been associated with an increased risk of suicidal thoughts or behavior in patients taking these drugs for any indication. Pooled analyses of 199 placebo-controlled clinical studies involving the use of 11 different AEDs showed that patients receiving AEDs had approximately twice the risk of suicidal thinking or behavior compared to patients receiving placebo. AEDs should be administered cautiously in patients with depression or other psychiatric disorders; phentermine-topiramate should be avoided in patients with history of suicidal attempts or active suicidal ideation. The risk of suicidal thoughts and behavior should be carefully assessed against the risk of untreated illness, bearing in mind that epilepsy and many other conditions for which AEDs are prescribed are themselves associated with morbidity and mortality and an increased risk of suicidal thoughts and behavior. Patients, caregivers, and families should be alert to the emergence or worsening of signs and symptoms of depression, any unusual changes in mood or behavior, or the emergence of suicidal thoughts or behavior. If patients have symptoms of suicidal ideation or behavior, a dosage reduction or treatment discontinuation should be considered.

Renal Dysfunction

Major:

duloxetine

DULoxetine has a major potential interaction with Renal Dysfunction.

The use of duloxetine should be avoided in patients with severe renal impairment (GFR <30 mL/min).

Seizures

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Seizures.

SNRI antidepressants may trigger seizures and should be administered with caution in patients with a seizure disorder.

Urinary Tract Infection

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Urinary Tract Infection.

SNRI antidepressants have a noradrenergic effect and can affect urethral resistance. Caution should be used in patients with a history of dysuria, prostatic hypertrophy, prostatitis, and other lower urinary tract obstructive disorders.

Urinary Tract Obstruction

Moderate:

duloxetine

DULoxetine has a moderate potential interaction with Urinary Tract Obstruction.

SNRI antidepressants have a noradrenergic effect and can affect urethral resistance. Caution should be used in patients with a history of dysuria, prostatic hypertrophy, prostatitis, and other lower urinary tract obstructive disorders.

Vitamin D Deficiency

Moderate:

Mesantoin

The mephenytoin in Mesantoin has a moderate potential interaction with Vitamin D Deficiency.

Phenytoin may interfere with vitamin D metabolism. Hypocalcemia and osteomalacia have been reported. Therapy with phenytoin should be administered cautiously in patients with preexisting vitamin D deficiency. The same precaution should also be observed with other hydantoin anticonvulsants (i.e. ethotoin and mephenytoin) because of their structural and pharmacological similarities to phenytoin.

More resources

duloxetine

A total of 654 drugs are known to interact with duloxetine.

Mesantoin

A total of 456 drugs are known to interact with Mesantoin.

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.