Classes
DEA Class; Rx
Common Brand Names; ONFI, Sympazan
- Anticonvulsants, Benzodiazepine
Description
Oral anticonvulsant; benzodiazepine derivative
Used for the adjunctive treatment of seizures associated with Lennox-Gastaut syndrome
Psychological and physical dependence is possible
Indications
Indicated for the adjunct treatment of seizures associated with Lennox-Gastaut syndrome.
Contraindications
History of hypersensitivity to drug or ingredients
Adverse Effects
- Somnolence or sedation (26%)
- Somnolence (22%)
- Pyrexia (13%)
- Upper respiratory tract infection (12%)
- Drooling (9%)
- Aggression (8%)
- Irritability (7%)
- Vomiting (7%)
- Insomnia (5%)
- Ataxia (5%)
- Sedation (5%)
- Constipation (5%)
- Fatigue (5%)
- Cough (5%)
- Psychomotor hyperactivity (4%)
- Pneumonia (4%)
- Urinary tract infection (4%)
- Dysarthria (3%)
- Decreased appetite (3%)
- Increased appetite (3%)
- Bronchitis (2%)
- Dysphagia (2%)
- Hypothermia
- Blood Disorders: Anemia, eosinophilia, leukopenia, thrombocytopenia
- Eye Disorders: Diplopia, vision blurred
- Gastrointestinal Disorders: Abdominal distention
- GU disorders: Urinary retention
- Lab: Hepatic enzyme increased
- Musculoskeletal: Muscle spasms
- Respiratory Disorders: Aspiration, respiratory depression
- Skin and Subcutaneous Tissue Disorders: Rash, Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), urticaria
Warnings
Somnolence or sedation; generally occurs within the first month of treatment and may diminish with continued treatment; caution patients about operating hazardous machinery, including automobiles, until they are reasonably certain that therapy does not affect them adversely (eg, impair judgment, thinking or motor skills)
Serious skin reactions (eg, Stevens-Johnson syndrome, toxic epidermal necrolysis) reported in both children and adults; monitor closely, especially during the first 8 weeks of treatment initiation or when reintroducing therapy; discontinue at the first sign of drug-related rash and do not resume unless rash is clearly not drug related; if signs or symptoms suggest SJS/TEN, do not resume therapy; alternative therapy should be considered
Consider history of substance abuse because of predisposition of such patients to physical and/or psychological dependence; patients with history of substance abuse should be under careful surveillance when receiving drug or other psychotropic agents because of predisposition of such patients to habituation and dependence
Use of drug, particularly in patients at elevated risk of abuse, necessitates counseling about risks and proper use of drug along with monitoring for signs and symptoms of abuse, misuse, and addiction; do not exceed recommended dosing frequency
Avoid or minimize concomitant use of CNS depressants and other substances associated with abuse, misuse, and addiction (eg, opioid analgesics, stimulants); advise patients on proper disposal of unused drug; if a substance use disorder is suspected, evaluate patient and institute (or refer them for) early treatment, as appropriate
For patients using treated more frequently than recommended, to reduce risk of withdrawal reactions, use a gradual taper to discontinue therapy (a patient-specific plan should be used to taper the dose)
Pregnancy and Lactation
There are no adequate and well-controlled studies in pregnant women
Drug is excreted in human milk; postmarketing experience suggests that breastfed infants of mothers taking benzodiazepines, may have effects of lethargy, somnolence and poor sucking; effect of drug on milk production is unknown; developmental and health benefits of breastfeeding should be considered along with mother’s clinical need for drug and any potential adverse effects on breastfed infant from drug or from underlying maternal condition; if exposing a breastfed infant to drug, observe for any potential adverse effects
Maximum Dosage
40 mg/day PO.
40 mg/day PO.
Weighing more than 30 kg: 40 mg/day PO.
Weighing 30 kg or less: 20 mg/day PO.
2 to 12 years weighing more than 30 kg: 40 mg/day PO.
2 to 12 years weighing 30 kg or less: 20 mg/day PO.
1 year: Safety and efficacy have not been established; however, doses up to 2 mg/kg/day PO have been recommended for Dravet syndrome.
Safety and efficacy have not been established; however, doses up to 2 mg/kg/day PO have been recommended for Dravet syndrome.
Safety and efficacy have not been established.
How supplied
Clobazam
scored tablet (ONFI, generic): Schedule IV
- 10mg
- 20mg
oral suspension (ONFI, generic): Schedule IV
- 2.5mg/mL
oral soluble film (Sympazan): Schedule IV
- 5mg
- 10mg
- 20mg