See package insert. How to take and store Felbamate? Follow your doctor’s directions. Call if you have any questions. Usually, your doctor will tell you to start by. Felbatol is the brand name used in the United States for felbamate. Read the black box warning in the Package Insert to your patient and obtain any necessary . Felbamate, also known as Felbatol, has been approved by the Food and Drug about all potential risks before using this drug and read the package insert.

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Amphetamines may decrease the paciage threshold and may increase the risk of seizures. Felbamate increases the steady-state serum felbamatee of phenobarbital. Moderate Use caution during concurrent use of vorapaxar and felbamate. Patients and caregivers should be informed of the increased risk of suicidal thoughts and behaviors and should be advised to immediately report the emergence or worsening of depression, the emergence of suicidal thoughts or behavior, thoughts of self-harm, or other unusual changes in mood or behavior.

Induction of CYP3A4 by felbamate may significantly reduce the plasma concentrations of simeprevir, resulting in treatment failure. Major Use caution when administering velpatasvir with felbamate. Avoid coadministration of felbamate and doxorubicin if possible.

Time to peak serum concentration is 1—6 hours.

Felbatol (felbamate) dose, indications, adverse effects, interactions from

Belladonna Alkaloids; Ergotamine; Phenobarbital: Monitor for decreased clinical effects of tretinoin, ATRA while receiving concomitant therapy. Felbamate is classified as FDA pregnancy risk category C. If these drugs must be administered together, closely monitor for a reduction in dapsone efficacy and signs of hemolytic anemia.

Inserg were 4 completed suicides among patients in drug treatment groups versus none in the placebo groups. The half-life of the drug is prolonged and clearance reduced. Oral anticonvulsant agent chemically similar to meprobamate, but does not possess muscle-relaxant activity.

Felbamate is contraindicated in patients with a history of any hematological disease e. The plasma half-life of felbamate is 13—23 hours and is not changed after multiple doses. Moderate Concurrent administration of felbamate and felbamatr antiepileptic drugs results in fellbamate in serum concentrations of both felbamate frlbamate the antiepileptic drugs. A hematologic consultation is recommended to determine appropriateness of use prior to treatment.


Moderate Concomitant use of systemic lidocaine and felbamate may decrease lidocaine plasma concentrations. Plasma concentrations of atazanavir may be reduced if these drugs are administered concurrently, leading to a reduction of antiretroviral efficacy and the potential development of viral resistance.

Adequate dosages of anticonvulsants should be continued when molindone is added; patients should be monitored for clinical evidence of loss of seizure control or the need for dosage adjustments of either molindone or the anticonvulsant.

Agents that induce CYP3A4 may increase the metabolism of vincristine and decrease the efficacy of drug, including felbamzte. Felbamate is a mild inducer of the hepatic isoenzyme CYP3A4; ritonavir is metabolized by this enzyme. If these drugs are used felbamat, monitor for escitalopram-associated adverse reactions. Patients receiving these drugs concurrently with vincristine should be monitored for possible loss of vincristine efficacy.

If seizures occur, amphetamine discontinuation may be necessary. Too little is known about felbamate-induced aplastic anemia to determine fatality percentages or which patients are more at risk for this serious adverse reaction.

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The increased risk of suicidal ideation and behavior was inswrt between 1 and 24 weeks after therapy initiation. Patients who are discontinued off the drug therefore remain at risk for aplastic anemia for an unknown time after drug discontinuation.

When an anticonvulsant is being used to manage behavior, stabilize mood, or treat a psychiatric disorder, the facility should attempt periodic tapering of the medication or provide documentation of medical necessity in accordance with OBRA guidelines. According to the Beers Criteria, anticonvulsants such as felbamate are considered potentially inappropriate medications PIMs in geriatric patients with a history of falls or fractures and should felvamate avoided in these patient populations, paclage the exception of treating seizure and mood disorders, since anticonvulsants can produce ataxia, impaired psychomotor function, syncope, and additional falls.

Atropine; Hyoscyamine; Phenobarbital; Scopolamine: Use of these drugs together may decrease the plasma concentrations of both elbasvir and grazoprevir, inesrt could result in decreased virologic response. Guidance is not available regarding concomitant use of cobimetinib with weak CYP3A inducers. Celbamate, it is recommended that felbamate only be used in patients with severe epilepsy for which the benefits of feblamate drug outweigh the risks of hepatic failure and other toxicities.


Clinical manifestations may not be present for several months after therapy is initiated; where data are available the onset has ranged from 5 to 30 weeks after the start of therapy. Hydroxychloroquine can lower the seizure threshold; therefore, the activity of antiepileptic drugs may be impaired with concomitant use.

Concomitant use may decrease the plasma concentration and effectiveness of ulipristal. Moderate MAOIs can cause a variable change in seizure patterns, so careful monitoring of the patient with epilepsy is required.

Major Avoid coadministration of isavuconazonium with felbamate.

Higher lidocaine doses may be required; titrate to effect. Moderate Use lacosamide with caution in patients taking concomitant medications that affect cardiac conduction including those that prolong PR interval, such as sodium channel blocking anticonvulsants e. Major In vitro and drug interactions studies suggest that the CYP3A4 isoenzyme is the major enzyme involved in praziquantel metabolism. However, in rats, inssert was a decrease in pup weight and an increase in pup deaths during the post-birth lactation period; the cause for these deaths is not known.

Whether pre-existing hepatic disease increases the risk of felbamate-induced hepatotoxicity is unknown. Bone marrow stem cell changes may occur weeks to months earlier than clinical presentation.

Felbamate should be discontinued if signs and symptoms of hematologic abnormalities or any sign of bone marrow depression occurs. Extrapolation from pharmacogenomic data indicates that concurrent use of clobazam with moderate or potent inhibitors of CYP2C19 may result in up to a 5-fold increase in exposure to N-desmethylclobazam. A baseline CBC with platelets and reticulocytes should be obtained, as well as routine laboratory monitoring throughout treatment. We do not record any personal information entered above.

Monitor ppackage a decrease in maraviroc efficacy with concomitant use.