Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Onfi (clobazam) is a benzodiazapine for use as an add-on treatment for seizures associated with Lennox-Gastaut syndrome (LGS) in patients 2 years of age or older.
Side Effects. Anti-seizure medication side effects vary by drug but may include: 1  Nausea and vomiting. 2  Diarrhea. 3  Cramps. 4  Tingling sensation in arms and legs. 5  Hair loss. 6  Dizziness. 7  Sleepiness.