Skip to main content

Can you take Mysoline with Venlafaxine?

1 drug interaction and 52 additional warnings found for the following 2 drugs:

Add/remove drugs

Drug interactions

Moderate drug interactions

Moderate:

primidone venlafaxine

Applies to: Mysoline (primidone) and venlafaxine

Using primidone together with venlafaxine may increase side effects such as dizziness, drowsiness, confusion, and difficulty concentrating. Some people, especially the elderly, may also experience impairment in thinking, judgment, and motor coordination. You should avoid or limit the use of alcohol while being treated with these medications. Also avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medications affect you. Talk to your doctor 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.

Food/lifestyle interactions

Major food/lifestyle interactions

Major:

primidone Alcohol (Ethanol)

Applies to: Mysoline (primidone)

Ask your doctor before using primidone together with ethanol (alcohol), this can add to dizziness, drowsiness and other side effects of primidone. Be careful if you drive or do activities that require you to be awake and alert. Talk with your doctor before using any medications together, or drinking alcohol with primidone. 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.

Moderate food/lifestyle interactions

Moderate:

venlafaxine Food/Lifestyle

Applies to: 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.

Disease interactions

50 potential interactions Applies to: 29 conditions, including High Blood Pressure, Depression, Vitamin D Deficiency, Bipolar Disorder, and Urinary Tract Infection.

Acute Alcohol Intoxication

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Acute Alcohol Intoxication.

The use of barbiturates is contraindicated in patients with acute alcohol intoxication exhibiting depressed vital signs. The central nervous system depressant effects of barbiturates may be additive with those of alcohol. Severe respiratory depression and death may occur. Therapy with barbiturates should be administered cautiously in patients who might be prone to acute alcohol intake.

Adrenal Insufficiency

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Adrenal Insufficiency.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Adrenal Insufficiency.

Barbiturates, especially phenobarbital, secobarbital and butabarbital, may diminish the systemic effects of exogenous and endogenous corticosteroids via induction of hepatic microsomal enzymes, thereby accelerating the metabolism of corticosteroids. In addition, barbiturates may interfere with pituitary corticotropin production. Therapy with barbiturates should be administered cautiously in patients with adrenal insufficiency. Patients with borderline hypoadrenalism should be monitored closely, and patients receiving steroid supplementation may require an adjustment in dosage when barbiturates are added to or withdrawn from their medication regimen.

Alcoholism

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Alcoholism.

Barbiturates have the potential to cause dependence and abuse. Tolerance as well as physical and psychological dependence can develop, particularly after prolonged use of excessive dosages. Abrupt cessation and/or a reduction in dosage may precipitate withdrawal symptoms. In patients who have developed tolerance to a barbiturate, overdosage can still produce respiratory depression and death, and cross-tolerance usually will occur with other agents in the class. Addiction-prone individuals, such as those with a history of alcohol or substance abuse, should be under careful surveillance or medical supervision when treated with barbiturates. It may be prudent to refrain from dispensing large quantities of medication to these patients. After prolonged use or if dependency is suspected, withdrawal of barbiturates should be undertaken gradually using a dosage-tapering schedule.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Alcoholism.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Anorexia/Feeding Problems

Minor:

venlafaxine

Venlafaxine has a minor potential interaction with Anorexia/Feeding Problems.

The use of venlafaxine may occasionally cause significant, dose-dependent weight loss, which may be undesirable in patients suffering from anorexia, malnutrition or excessive weight loss. The loss of at least 5% of body weight occurred in 6% to 7% of treated patients in premarketing studies, compared to 1% to 2% for placebo. Anorexia may occur in approximately 10% of patients. Weight change should be monitored during therapy if venlafaxine is used in malnourished or underweight patients.

Asphyxia

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Asphyxia.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Asphyxia.

Barbiturates may produce severe respiratory depression, apnea, laryngospasm, bronchospasm and cough, particularly during rapid intravenous administration. In usual hypnotic dosages, the degree of respiratory depression produced is similar to that which occurs during physiologic sleep, while at higher dosages, the rate, depth and volume of respiration may be markedly decreased. However, some patients may be susceptible at commonly used dosages, including the elderly, debilitated or severely ill patients, those receiving other CNS depressants, and those with limited ventilatory reserve, chronic pulmonary insufficiency or other respiratory disorders. Therapy with barbiturates should be administered cautiously in these patients. Appropriate monitoring and individualization of dosage are particularly important, and equipment for resuscitation should be immediately available if the parenteral route is used. Barbiturates, especially injectable formulations, should generally be avoided in patients with sleep apnea, hypoxia, or severe pulmonary diseases in which dyspnea or obstruction is evident.

Bipolar Disorder

Major:

venlafaxine

Venlafaxine 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:

venlafaxine

Venlafaxine has a moderate potential interaction with Bipolar Disorder.

All antidepressants may occasionally cause mania or hypomania, particularly in patients with bipolar disorder. Therapy with antidepressants should be administered cautiously in patients with a history of mania/hypomania.

Moderate:

venlafaxine

Venlafaxine 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

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Bone Marrow Depression/Low Blood Counts.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Bone Marrow Depression/Low Blood Counts.

Hematologic toxicity, including agranulocytosis, thrombocytopenic purpura and megaloblastic anemia, has been reported rarely during use of barbiturates. Therapy with barbiturates should be administered cautiously in patients with preexisting blood dyscrasias or bone marrow suppression. Blood counts are recommended prior to and periodically during long-term therapy, and patients should be instructed to immediately report any signs or symptoms suggestive of blood dyscrasia such as fever, sore throat, local infection, easy bruising, petechiae, bleeding, pallor, dizziness, or jaundice. Barbiturate therapy should be discontinued if blood dyscrasias occur.

Dehydration

Moderate:

venlafaxine

Venlafaxine 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:

Mysoline

The primidone in Mysoline has a major potential interaction with Depression.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Major:

venlafaxine

Venlafaxine 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:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Depression.

Barbiturates depress the central nervous system and may cause or exacerbate mental depression. Therapy with barbiturates should be administered cautiously in patients with a history of depression or suicidal tendencies. It may be prudent to refrain from dispensing large quantities of medication to these patients.

Moderate:

Mysoline

The primidone in Mysoline 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.

Dermatitis, Drug-Induced

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Dermatitis, Drug-Induced.

Skin eruptions may precede rare but potentially fatal barbiturate-induced reactions such as systemic lupus erythematosus and exfoliative dermatitis, the latter of which may be accompanied by hepatitis and jaundice. Therapy with barbiturates should be administered cautiously in patients with preexisting drug-induced dermatitis, since it may delay the recognition of a potential reaction to barbiturates. Barbiturate therapy should be withdrawn promptly at the first sign of a dermatologic adverse effect. However, cutaneous reactions may proceed to an irreversible stage even after cessation of medication due to the slow rate of metabolism and excretion of barbiturates. Patients should be advised to promptly report signs that may indicate impending development of barbiturate-related cutaneous lesions, including high fever, severe headache, stomatitis, conjunctivitis, rhinitis, urethritis, and balanitis. Rashes may be more likely to occur with phenobarbital and mephobarbital.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Dermatitis, Drug-Induced.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Drug Dependence

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Drug Dependence.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Drug Dependence.

Barbiturates have the potential to cause dependence and abuse. Tolerance as well as physical and psychological dependence can develop, particularly after prolonged use of excessive dosages. Abrupt cessation and/or a reduction in dosage may precipitate withdrawal symptoms. In patients who have developed tolerance to a barbiturate, overdosage can still produce respiratory depression and death, and cross-tolerance usually will occur with other agents in the class. Addiction-prone individuals, such as those with a history of alcohol or substance abuse, should be under careful surveillance or medical supervision when treated with barbiturates. It may be prudent to refrain from dispensing large quantities of medication to these patients. After prolonged use or if dependency is suspected, withdrawal of barbiturates should be undertaken gradually using a dosage-tapering schedule.

Failure to Thrive

Minor:

venlafaxine

Venlafaxine has a minor potential interaction with Failure to Thrive.

The use of venlafaxine may occasionally cause significant, dose-dependent weight loss, which may be undesirable in patients suffering from anorexia, malnutrition or excessive weight loss. The loss of at least 5% of body weight occurred in 6% to 7% of treated patients in premarketing studies, compared to 1% to 2% for placebo. Anorexia may occur in approximately 10% of patients. Weight change should be monitored during therapy if venlafaxine is used in malnourished or underweight patients.

Glaucoma, Narrow Angle

Moderate:

venlafaxine

Venlafaxine 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:

venlafaxine

Venlafaxine 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.

Hyperkinetic Syndrome of Childhood

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Hyperkinetic Syndrome of Childhood.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Hyperkinetic Syndrome of Childhood.

Paradoxical reactions characterized by excitability and restlessness may occur in pediatric patients with hyperactive aggressive disorders. Such patients should be monitored for signs of paradoxical stimulation during therapy with barbiturates.

Hyponatremia

Moderate:

venlafaxine

Venlafaxine 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:

Mysoline

The primidone in Mysoline has a major potential interaction with Liver Disease.

During chronic administration, primidone is slowly metabolized by the liver and excreted in the urine as phenylethylmalonamide (PEMA), phenobarbital and p-hydroxyphenobarbital, the latter two of which are pharmacologically active. The plasma clearance of primidone and its metabolites may be decreased and the half-lives prolonged in patients with impaired hepatic and/or renal function. Therapy with primidone should be administered cautiously and initiated at reduced dosages in patients with liver and/or renal disease.

Major:

venlafaxine

Venlafaxine has a major potential interaction with Liver Disease.

Venlafaxine is metabolized by the liver, and both the parent drug and metabolites are excreted by the kidney. Patients with renal and/or liver disease may be at greater risk for adverse effects from venlafaxine due to decreased drug clearance. Therapy with venlafaxine should be administered cautiously in patients with impaired renal and/or hepatic function. A reduction in the total daily dosage is recommended. The manufacturer suggests a 50% reduction in patients with moderate hepatic impairment (possibly more in patients with cirrhosis), a 25% reduction in patients with mild to moderate renal impairment, and a 50% reduction in patients undergoing hemodialysis (to be administered after dialysis treatment).

Malnourishment

Minor:

venlafaxine

Venlafaxine has a minor potential interaction with Malnourishment.

The use of venlafaxine may occasionally cause significant, dose-dependent weight loss, which may be undesirable in patients suffering from anorexia, malnutrition or excessive weight loss. The loss of at least 5% of body weight occurred in 6% to 7% of treated patients in premarketing studies, compared to 1% to 2% for placebo. Anorexia may occur in approximately 10% of patients. Weight change should be monitored during therapy if venlafaxine is used in malnourished or underweight patients.

Mania

Moderate:

venlafaxine

Venlafaxine has a moderate potential interaction with Mania.

All antidepressants may occasionally cause mania or hypomania, particularly in patients with bipolar disorder. Therapy with antidepressants should be administered cautiously in patients with a history of mania/hypomania.

Moderate:

venlafaxine

Venlafaxine 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.

Panhypopituitarism

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Panhypopituitarism.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Panhypopituitarism.

Barbiturates, especially phenobarbital, secobarbital and butabarbital, may diminish the systemic effects of exogenous and endogenous corticosteroids via induction of hepatic microsomal enzymes, thereby accelerating the metabolism of corticosteroids. In addition, barbiturates may interfere with pituitary corticotropin production. Therapy with barbiturates should be administered cautiously in patients with adrenal insufficiency. Patients with borderline hypoadrenalism should be monitored closely, and patients receiving steroid supplementation may require an adjustment in dosage when barbiturates are added to or withdrawn from their medication regimen.

Porphyria

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Porphyria.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Porphyria.

The use of barbiturates is contraindicated in patients with a history of porphyria. Barbiturates may exacerbate acute intermittent porphyria or porphyria variegata by inducing the enzymes responsible for porphyrin synthesis.

Psychosis

Moderate:

Mysoline

The primidone in Mysoline 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.

Pulmonary Impairment

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Pulmonary Impairment.

Barbiturates may produce severe respiratory depression, apnea, laryngospasm, bronchospasm and cough, particularly during rapid intravenous administration. In usual hypnotic dosages, the degree of respiratory depression produced is similar to that which occurs during physiologic sleep, while at higher dosages, the rate, depth and volume of respiration may be markedly decreased. However, some patients may be susceptible at commonly used dosages, including the elderly, debilitated or severely ill patients, those receiving other CNS depressants, and those with limited ventilatory reserve, chronic pulmonary insufficiency or other respiratory disorders. Therapy with barbiturates should be administered cautiously in these patients. Appropriate monitoring and individualization of dosage are particularly important, and equipment for resuscitation should be immediately available if the parenteral route is used. Barbiturates, especially injectable formulations, should generally be avoided in patients with sleep apnea, hypoxia, or severe pulmonary diseases in which dyspnea or obstruction is evident.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Pulmonary Impairment.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Renal Dysfunction

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Renal Dysfunction.

During chronic administration, primidone is slowly metabolized by the liver and excreted in the urine as phenylethylmalonamide (PEMA), phenobarbital and p-hydroxyphenobarbital, the latter two of which are pharmacologically active. The plasma clearance of primidone and its metabolites may be decreased and the half-lives prolonged in patients with impaired hepatic and/or renal function. Therapy with primidone should be administered cautiously and initiated at reduced dosages in patients with liver and/or renal disease.

Major:

venlafaxine

Venlafaxine has a major potential interaction with Renal Dysfunction.

The clearance of SNRI antidepressants is decreased in subjects with renal impairment. SNRIs should be used with caution in this group of patients and a dose adjustment is recommended in those with moderate and severe renal impairment. The use of SNRIs is not recommended in patients with end-stage renal disease.

Major:

venlafaxine

Venlafaxine has a major potential interaction with Renal Dysfunction.

Venlafaxine is metabolized by the liver, and both the parent drug and metabolites are excreted by the kidney. Patients with renal and/or liver disease may be at greater risk for adverse effects from venlafaxine due to decreased drug clearance. Therapy with venlafaxine should be administered cautiously in patients with impaired renal and/or hepatic function. A reduction in the total daily dosage is recommended. The manufacturer suggests a 50% reduction in patients with moderate hepatic impairment (possibly more in patients with cirrhosis), a 25% reduction in patients with mild to moderate renal impairment, and a 50% reduction in patients undergoing hemodialysis (to be administered after dialysis treatment).

Respiratory Arrest

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Respiratory Arrest.

Barbiturates may produce severe respiratory depression, apnea, laryngospasm, bronchospasm and cough, particularly during rapid intravenous administration. In usual hypnotic dosages, the degree of respiratory depression produced is similar to that which occurs during physiologic sleep, while at higher dosages, the rate, depth and volume of respiration may be markedly decreased. However, some patients may be susceptible at commonly used dosages, including the elderly, debilitated or severely ill patients, those receiving other CNS depressants, and those with limited ventilatory reserve, chronic pulmonary insufficiency or other respiratory disorders. Therapy with barbiturates should be administered cautiously in these patients. Appropriate monitoring and individualization of dosage are particularly important, and equipment for resuscitation should be immediately available if the parenteral route is used. Barbiturates, especially injectable formulations, should generally be avoided in patients with sleep apnea, hypoxia, or severe pulmonary diseases in which dyspnea or obstruction is evident.

Major:

Mysoline

The primidone in Mysoline has a major potential interaction with Respiratory Arrest.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Seizures

Moderate:

venlafaxine

Venlafaxine 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:

venlafaxine

Venlafaxine 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:

venlafaxine

Venlafaxine 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:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Vitamin D Deficiency.

Since primidone is structurally related to the barbiturate-derivative anticonvulsants and also partially metabolized to phenobarbital during chronic administration, the usual contraindications, warnings and precautions applicable to barbiturates should be observed with primidone.

Moderate:

Mysoline

The primidone in Mysoline has a moderate potential interaction with Vitamin D Deficiency.

Rickets and osteomalacia have rarely been reported following prolonged use of barbiturates, possibly due to increased metabolism of vitamin D as a result of enzyme induction by barbiturates. Long-term therapy with barbiturates should be administered cautiously in patients with vitamin D deficiency.

More resources

Mysoline

A total of 730 drugs are known to interact with Mysoline.

venlafaxine

A total of 727 drugs are known to interact with venlafaxine.

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.