| Lennox-Gastaut Syndrome
Qudexy XR vs Sympazan
Side-by-side clinical, coverage, and cost comparison for lennox-gastaut syndrome.Deep comparison between: Qudexy vs Sympazan with Prescriber.AI
AI compares prescribing info and payer-specific access barriers across 1,200+ formularies. Here's a preview of what prescribers are already asking.Safety signalsSympazan has a higher rate of injection site reactions vs Qudexy based on FDA-approved prescribing information
Coverage gaps3 major payers require step therapy for Sympazan but not Qudexy, including UnitedHealthcare
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Category
Qudexy
Sympazan
At A Glance
Oral
Once daily
Broad-spectrum anticonvulsant
Oral film
Twice daily
Benzodiazepine
Indications
- Seizures, Focal
- Generalized seizures
- Lennox-Gastaut syndrome
- Migraine Disorders
- Lennox-Gastaut syndrome
Dosing
Seizures, Focal, Generalized seizures, Lennox-Gastaut syndrome Monotherapy (adults and peds >=10 years): 400 mg orally once daily, titrated over 6 weeks from 50 mg/day; peds 2-9 years: weight-based 150-400 mg/day once daily. Adjunctive (adults): 200 to 400 mg once daily; adjunctive (peds 2-16 years): approximately 5 to 9 mg/kg once daily, not to exceed 400 mg/day.
Migraine Disorders 100 mg orally once daily for patients 12 years of age and older, titrated over 4 weeks from 25 mg/day.
Lennox-Gastaut syndrome Weight <=30 kg: initiate at 5 mg/day, titrate up to 20 mg/day; weight >30 kg: initiate at 10 mg/day, titrate up to 40 mg/day; doses above 5 mg/day given in two divided doses twice daily; do not escalate more rapidly than weekly.
Contraindications
- History of hypersensitivity reaction to topiramate, QUDEXY XR, or any inactive ingredient
- History of hypersensitivity to clobazam or any of its ingredients, including serious dermatological reactions
Adverse Reactions
Most common (>=10%) Paresthesia, somnolence, dizziness, weight loss, anorexia, speech disorders/related speech problems, psychomotor slowing, nervousness, vision abnormal
Serious Acute myopia and secondary angle closure glaucoma, visual field defects, oligohydrosis and hyperthermia, metabolic acidosis, suicidal behavior and ideation, cognitive/neuropsychiatric adverse reactions, decrease in bone mineral density, negative effects on growth, DRESS/multiorgan hypersensitivity, serious skin reactions, anaphylaxis and angioedema, hyperammonemia and encephalopathy, kidney stones, hypothermia with concomitant valproic acid
Postmarketing Hepatic failure, hepatitis, pancreatitis, bullous skin reactions (Stevens-Johnson syndrome, toxic epidermal necrolysis), pemphigus, maculopathy, nephrocalcinosis
Most common (>=5%) Somnolence or sedation, pyrexia, upper respiratory tract infection, lethargy, aggression, drooling, irritability, insomnia, ataxia, vomiting, constipation, cough, fatigue, decreased appetite, increased appetite
Serious Respiratory depression (with opioids), abuse and addiction, dependence and withdrawal reactions, serious dermatological reactions, drug reaction with eosinophilia and systemic symptoms (DRESS), suicidal behavior and ideation, neonatal sedation and withdrawal syndrome
Postmarketing Anemia, eosinophilia, leukopenia, thrombocytopenia, diplopia, blurred vision, abdominal distention, hypothermia, hepatic enzyme increased, muscle spasms, agitation, anxiety, depression, delirium, hallucination, urinary retention, aspiration, respiratory depression, rash, urticaria, angioedema
Pharmacology
Topiramate blocks voltage-dependent sodium channels, augments GABA-A receptor activity, antagonizes the AMPA/kainate subtype of the glutamate receptor, and inhibits carbonic anhydrase isozymes II and IV; the precise mechanisms underlying its anticonvulsant and preventive migraine effects are unknown.
Clobazam is a 1,5-benzodiazepine whose mechanism is thought to involve potentiation of GABAergic neurotransmission through binding at the benzodiazepine site of the GABA-A receptor; it is extensively metabolized to N-desmethylclobazam, an active metabolite with approximately 1/5 the activity of the parent compound.
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Most Common Insurance
Anthem BCBS
Qudexy
- Covered on 5 commercial plans
- PA (7/12) · Step Therapy (0/12) · Qty limit (0/12)
Sympazan
- Covered on 5 commercial plans
- PA (8/12) · Step Therapy (3/12) · Qty limit (11/12)
UnitedHealthcare
Qudexy
- Covered on 4 commercial plans
- PA (0/8) · Step Therapy (0/8) · Qty limit (0/8)
Sympazan
- Covered on 4 commercial plans
- PA (6/8) · Step Therapy (4/8) · Qty limit (2/8)
Humana
Qudexy
- Covered on 0 commercial plans
- PA (1/3) · Step Therapy (0/3) · Qty limit (0/3)
Sympazan
- Covered on 0 commercial plans
- PA (3/3) · Step Therapy (2/3) · Qty limit (3/3)
Coverage data sourced from MMIT. Updated monthly.
Savings
No savings programs available for Qudexy.
No savings programs available for Sympazan.
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Clinical data sourced from FDA-approved labeling. Coverage data via MMIT. Updated monthly.