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Antiseizure medicine (SV2A ligand) · Schedule V

Brivaracetam Briviact

Brivaracetam (Briviact) is a prescription antiseizure medicine for partial-onset seizures in people 1 month and older. It is a Schedule V controlled substance. A close relative of levetiracetam (Keppra), it can cause sleepiness and mood changes such as irritability.

Prescription medicine

Draft, awaiting medical review. Updated October 5, 2026.

Onset
Peak levels in about 1 hour
Duration
Twice-daily dosing
Naloxone reverses it?
No
Dependence risk
Low

Briviact (Brivaracetam) at a glance: schedule, half-life, and class

Generic name
Brivaracetam
Brand names
Briviact
Drug class
Antiseizure medicine; synaptic vesicle protein 2A (SV2A) ligand
US legal status
Schedule V, prescription only
Approved uses
Partial-onset seizures, age 1 month and older
Forms
Tablets, oral solution, injection
Half-life
About 9 hours

Briviact uses: what brivaracetam is prescribed for

Brivaracetam treats partial-onset seizures, alone or with other medicines. It binds the same target as levetiracetam but more strongly, and enters the brain quickly.[1]

Some people who had behavioral side effects on levetiracetam tolerate brivaracetam better, though it can cause similar effects.

Briviact dosage: how brivaracetam is usually prescribed

The figures below come from the FDA-approved label and describe how prescribers typically use brivaracetam. They are not personal dosing advice. A prescriber sets the dose for each person and adjusts it over time.[1]

ProductTypical adult doseNotes from the label
Adults and children 16 and older50 mg twice a dayAdjust to 25 to 100 mg twice a day
Liver impairment25 mg twice a dayMaximum 75 mg twice a day
With rifampinDouble the brivaracetam doseRifampin lowers levels

Briviact (brivaracetam) side effects and risks

Common side effects include sleepiness, dizziness, tiredness, and nausea.[1]

Psychiatric effects: irritability, anxiety, aggression, and, rarely, psychosis.[1]

Mood: like all antiseizure medicines, it carries a warning about a small increase in suicidal thoughts and behavior. Report new or worsening depression, anxiety, or agitation.[1]

Allergic reactions: rare bronchospasm and swelling (angioedema).

Briviact interactions: what not to mix with brivaracetam

Combined withWhat happensLabel guidance
RifampinLower brivaracetam levelsIncrease dose
CarbamazepineHigher carbamazepine-epoxide levelsMonitor
LevetiracetamNo added benefitNot usually combined
Alcohol and sedativesMore drowsinessUse caution

This is not a full list. A pharmacist can check a complete medication list, including supplements and over-the-counter products.[1]

Briviact overdose: signs of brivaracetam overdose and what to do

Limited data. Overdose is expected to cause drowsiness, dizziness, and unsteadiness.[1]

If someone may have overdosed

  • Call 911 if the person is unresponsive, hard to wake, or breathing slowly.
  • For advice when the person is awake and stable, call Poison Help at 1-800-222-1222 (US, free, 24 hours).
  • If opioids could be involved, including pills not from a pharmacy, give naloxone if you have it. Naloxone does not reverse brivaracetam, but it will not harm the person.
  • Stay with the person and place them on their side if they are drowsy or vomiting.

What happens if you stop brivaracetam suddenly?

Brivaracetam has low misuse potential, which is why it is in Schedule V. The main danger of stopping suddenly is not withdrawal but a rise in seizures.[1]

  1. DaysSeizure riskSeizures can return or become more frequent, including prolonged seizures.
  2. TaperGradual reductionThe label advises tapering over at least a week or longer.
  3. OngoingReassessChanges in seizure medicines should be planned with a neurologist.

Warning: Do not stop brivaracetam suddenly without talking to the prescriber. Stopping antiseizure medicines abruptly can trigger prolonged, dangerous seizures.

Can you order Briviact (brivaracetam) online legally?

Yes, but only with a valid prescription and only from a pharmacy licensed in your state. Many licensed pharmacies, including mail-order pharmacies run by insurers, fill brivaracetam prescriptions online and ship them. Buying brivaracetam from a website that does not require a prescription is illegal, and the product is often fake.[4][6]

  1. See a licensed clinicianA clinician evaluates you in person or by telemedicine and decides whether brivaracetam is appropriate.
  2. The prescription goes to a pharmacyPrescriptions are usually sent electronically, straight from the prescriber to the pharmacy you choose.
  3. The pharmacy checks and fills itA pharmacist verifies the prescription and your identity, then dispenses the medicine in person or by mail.

Signs that an online seller is illegal:

  • It sells brivaracetam with no prescription, or after only a short online questionnaire.
  • It takes orders through social media, messaging apps, or email.
  • It asks for payment in cryptocurrency, gift cards, or money transfers.
  • It has no US street address, no state pharmacy license, and no pharmacist to speak to.
  • Its prices are far below those of ordinary pharmacies, or it ships from another country.

The FDA's BeSafeRx tool links to each state's license lookup, and the National Association of Boards of Pharmacy lists verified online pharmacies.[4][5]

Briviact price: how much does Briviact (brivaracetam) cost without insurance?

Briviact is brand-name and expensive without insurance; generics were expected after patent expiry in 2026.

What you pay depends on the strength, the number of doses, your insurance plan, and the pharmacy. Cash prices for the same prescription can differ several times over between pharmacies in the same town, so check current prices before you fill it.

Ways to pay less, legally:

  • Ask the prescriber whether a generic brivaracetam is available. FDA-approved generics work the same way as the brand and usually cost much less.
  • Compare cash prices between pharmacies before you fill the prescription.
  • Use a free prescription discount card, such as GoodRx or SingleCare, when you pay cash. These cards cannot be combined with insurance on the same fill.
  • For brand-name medicines, check the manufacturer's savings program or patient assistance program.
  • Ask about a 90-day supply or your insurer's mail-order pharmacy, which often lowers the cost per dose when your prescriber agrees it is appropriate.

Warning: A price far below what licensed pharmacies charge, especially with no prescription required, is a strong sign of an illegal seller and counterfeit medicine.[4]

Common questions about Briviact (brivaracetam)

Is Briviact (brivaracetam) the same as Keppra?

No, but it is closely related to levetiracetam (Keppra) and acts on the same target.

Why is Briviact a controlled substance?

Studies found a small potential for euphoria at high doses, so it is in Schedule V.

Can Briviact (brivaracetam) cause anger or mood changes?

Yes, irritability and aggression are possible; report them to the prescriber.

How fast does Briviact (brivaracetam) work?

It reaches the brain quickly, within minutes when given intravenously.

Can you stop Briviact suddenly?

No. It should be tapered to avoid seizures.

Can you buy Briviact (brivaracetam) without a prescription?

No. Briviact (brivaracetam) is a Schedule V controlled substance in the US, so it is illegal to buy or possess it without a valid prescription. Websites and social media sellers that offer it without one are not legal pharmacies, and the FDA warns that products sold this way are often counterfeit, contaminated, or the wrong strength. The legal route is a visit with a licensed clinician, in person or by telehealth, and a prescription filled at a state-licensed pharmacy. The FDA's BeSafeRx tool and the NABP's safe pharmacy list help confirm an online pharmacy is real.

Sources

  1. Briviact (brivaracetam) prescription information. DailyMed, US National Library of Medicine.
  2. Controlled Substance Schedules. DEA Diversion Control Division.
  3. Prescribing controlled substances via telehealth. US Department of Health and Human Services.
  4. BeSafeRx: Your Source for Online Pharmacy Information. US Food and Drug Administration.
  5. Safe Pharmacy. National Association of Boards of Pharmacy.
  6. One Pill Can Kill. US Drug Enforcement Administration.
  7. International drug control conventions. United Nations Office on Drugs and Crime.
Read the Brivaracetam guideKey takeaways, quick facts, and answers to common questions.

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In an emergency in the US, call 911. Poison Help: 1-800-222-1222.