Seizure control feels different with ongoing support

With PRIMAXA ODT, you automatically have access to personalized service and financial support through NAME TBD to help you or your child stay on track with treatment.

Financial Assistance

$0 or $15

Co-pay

For Eligible Patients

With commercial insurance, you may be eligible to receive PRIMAXA ODT with a $0 copay. Even without commercial insurance, you may be able to receive PRIMAXA ODT for a $15 copay.

Restrictions and limitations may apply. For more information, talk to your prescribing doctor.

Expert assistance throughout treatment

PRIMAXA ODT is delivered through a specialty pharmacy, which is used to manage medicines for more rare or complex conditions than regular pharmacies. This provides personalized support for adults who are taking PRIMAXA or caring for a child who is taking it.

Receive these benefits:

Access to dedicated support staff to answer questions about PRIMAXA ODT, including dosing

Free home delivery of PRIMAXA ODT

Assistance with insurance and refills

Made in the USA

PRIMAXA ODT is an antiseizure medicine made in the USA, ensuring that every batch of medicine passes rigorous guidelines for high-quality standards and consistency. This local manufacturing also eliminates supply chain issues that could delay access to medication.

INDICATION AND IMPORTANT SAFETY INFORMATION View Full

WARNING: RISK OF SUICIDAL THOUGHTS AND BEHAVIORS; ABRUPT WITHDRAWAL; CNS DEPRESSION; HEMATOLOGIC ABNORMALITIES; USE IN PREGNANCY AND LACTATION; PHENYLKETONURIA; AND MAXIMUM DOSAGE LIMITATIONS

Suicidal Thoughts and Behaviors

Antiepileptic drugs (AEDs), including PrimaxaTM ODT (primidone orally disintegrating tablets), may increase the risk of suicidal thoughts or behavior. This risk is class-wide and applies to all AEDs, regardless of indication. Monitor all patients for new or worsening depression, suicidal ideation, or unusual changes in mood or behavior. Inform patients, caregivers, and families to be alert for these symptoms and to report them immediately.

Abrupt Withdrawal

Abrupt discontinuation of Primaxa ODT may result in increased seizure frequency or status epilepticus. Withdrawal should be done gradually under close medical supervision to minimize risk.

Central Nervous System Depression

Primaxa ODT can cause dose-dependent CNS depression. The most frequently reported side effects include sedation, dizziness, ataxia, vertigo, nausea, and visual disturbances. Caution patients against performing activities requiring mental alertness, such as driving or operating machinery, until they understand how the medication affects them.

Hematologic Abnormalities

Serious blood disorders have been reported with Primaxa ODT, including agranulocytosis, aplastic anemia, and red cell aplasia. Periodic complete blood counts are recommended during prolonged therapy. Megaloblastic anemia may also occur as a rare idiosyncratic reaction and typically responds to folic acid supplementation without discontinuing therapy.

Use in Pregnancy

The effects of primidone in human pregnancy are not well established. Use during pregnancy only if the potential benefit justifies the potential risk to the fetus. AEDs have been associated with an increased incidence of birth defects. Neonatal bleeding resembling vitamin K deficiency has been reported; consider vitamin K1 supplementation during the last month of pregnancy.

Use in Lactation

Primidone and its metabolites are excreted into breast milk in substantial quantities. Monitor nursing infants for signs of sedation or feeding difficulties. Discontinue breastfeeding if adverse effects are observed.

Phenylketonuria Warning

Primaxa ODT contains aspartame, a source of phenylalanine. Use with caution in patients with phenylketonuria.

Maximum Dosage Limitation

The total daily dose of Primaxa ODT should not exceed 2 grams. Therapeutic effects may take several weeks to be fully realized. Patients on long-term treatment should undergo periodic monitoring, including bloodwork and metabolic panels (e.g., SMA-12) every 6 months.

Adverse Reactions

The most common side effects include nausea, anorexia, vomiting, fatigue, hyperirritability, emotional disturbances, sexual dysfunction, diplopia, nystagmus, drowsiness, and morbilliform skin eruptions. Early side effects such as ataxia and vertigo tend to resolve with continued therapy or dose reduction. Rare but serious events include dermatologic reactions and hematologic abnormalities. Most adverse events are dose-related and may subside with dosage adjustment or continued use.

Please see full Prescribing Information for additional safety and dosing information.