Onfi - Side Effects clobazam

Side Effects for ONFI (clobazam suspension) are also known as adverse reactions. Below is a summary of known side effects for Onfi. If you experience side effects when taking Onfi, be sure to tell your doctor.

Adverse Reactions

Clinically significant adverse reactions that appear in other sections of the labeling include the following:

  • Risks from Concomitant Use with Opioids [see Warnings and Precautions (5.1)]
  • Abuse, Misuse, and Addiction [see Warnings and Precautions (5.2)]
  • Dependence and Withdrawal Reactions [see Warnings and Precautions (5.3)]
  • Potentiation of Sedation from Concomitant Use with Central Nervous System Depressants [see Warnings and Precautions (5.4)]
  • Somnolence or Sedation [see Warnings and Precautions (5.5)]
  • Serious Dermatological Reactions [see Contraindications (4), Warnings and Precautions (5.6)]
  • Suicidal Behavior and Ideation [see Warnings and Precautions (5.7)]

Adverse reactions that occurred at least 10% more frequently than placebo in any ONFI dose included constipation, somnolence or sedation, pyrexia, lethargy, and drooling (6.1)
   

To report SUSPECTED ADVERSE REACTIONS, contact Lundbeck at 1-800-455-1141 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

clinical trials experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.

During its development for the adjunctive treatment of seizures associated with LGS, ONFI was administered to 333 healthy volunteers and 300 patients with a current or prior diagnosis of LGS, including 197 patients treated for 12 months or more. The conditions and duration of exposure varied greatly and included single- and multiple-dose clinical pharmacology studies in healthy volunteers and two double-blind studies in patients with LGS (Study 1 and 2) [see Clinical Studies (14)]. Only Study 1 included a placebo group, allowing comparison of adverse reaction rates on ONFI at several doses to placebo.

Adverse Reactions Leading to Discontinuation in an LGS Placebo Controlled Clinical Trial (Study 1)
The adverse reactions associated with ONFI treatment discontinuation in ≥1% of patients in decreasing order of frequency included lethargy, somnolence, ataxia, aggression, fatigue, and insomnia.

Most Common Adverse Reactions in an LGS Placebo Controlled Clinical Trial (Study 1)
Table 3 lists the adverse reactions that occurred in ≥5% of ONFI-treated patients (at any dose), and at a rate greater than placebo-treated patients, in the randomized, double-blind, placebo-controlled, parallel group clinical study of adjunctive AED therapy for 15 weeks (Study 1).

Table 3. Adverse Reactions Reported for ≥5% of Patients and More Frequently than Placebo in Any Treatment Group
aMaximum daily dose of 5 mg for ≤30 kg body weight; 10 mg for >30 kg body weight
bMaximum daily dose of 10 mg for ≤30 kg body weight; 20 mg for >30 kg body weight
cMaximum daily dose of 20 mg for ≤30 kg body weight; 40 mg for >30 kg body weight
   Placebo
N=59
%
 ONFI Dose Level  All ONFI
N=179
%
 Lowa
N=58
%
 Mediumb
N=62
%
 Highc
N=59
%
 Gastrointestinal Disorders
      Vomiting   5   9   5   7   7
      Constipation   0   2   2   10   5
      Dysphagia   0   0   0   5   2
 General Disorders and Administration Site Conditions
      Pyrexia   3   17   10   12   13
      Irritability   5   3   11   5   7
      Fatigue   2   5   5   3   5
 Infections and Infestations
      Upper respiratory tract infection   10   10   13   14   12
      Pneumonia   2   3   3   7   4
      Urinary tract infection   0   2   5   5   4
      Bronchitis   0   2   0   5   2
 Metabolism and Nutrition Disorders
      Decreased appetite   3   3   0   7   3
      Increased appetite   0   2   3   5   3
 Nervous System Disorders
      Somnolence or Sedation   15   17   27   32   26
          Somnolence   12   16   24   25   22
          Sedation   3   2   3   9   5
      Lethargy   5   10   5   15   10
      Drooling   3   0   13   14   9
      Ataxia   3   3   2   10   5
      Psychomotor hyperactivity   3   3   3   5   4
      Dysarthria   0   2   2   5   3
 Psychiatric Disorders
      Aggression   5   3   8   14   8
      Insomnia   2   2   5   7   5
 Respiratory Disorders
      Cough   0   3   5   7   5

postmarketing experience

These reactions are reported voluntarily from a population of uncertain size; therefore, it is not possible to estimate their frequency or establish a causal relationship to drug exposure. Adverse reactions are categorized by system organ class.

Blood Disorders: Anemia, eosinophilia, leukopenia, thrombocytopenia
Eye Disorders: Diplopia, vision blurred
Gastrointestinal Disorders: Abdominal distention
General Disorders and Administration Site Conditions: Hypothermia
Investigations: Hepatic enzyme increased
Musculoskeletal: Muscle spasms
Psychiatric Disorders: Agitation, anxiety, apathy, confusional state, depression, delirium, delusion, hallucination
Renal and Urinary Disorders: Urinary retention
Respiratory Disorders:
Aspiration, respiratory depression
Skin and Subcutaneous Tissue Disorders: Rash, urticaria, angioedema, and facial and lip edema

This drug label information is as submitted to the Food and Drug Administration (FDA) and is intended for informational purposes only. If you think you may have a medical emergency, immediately call your doctor or dial 911. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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