The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Sleepiness (26%)
- Fever (13%)
- Upper respiratory tract infection (12%)
- Low energy (10%)
- Drooling (9%)
- Acting aggressive or being angry or violent (8%)
- Vomiting (7%)
Less Common Side Effects
- Cough
- Slurred speech
- Trouble swallowing
- Constipation
- Pain with urination
- Changes in appetite
- Trouble sleeping
- Problems with coordination
Sympazan serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Serious allergic and skin reactions: fever, sore throat, fatigue, rash, hives, painful blisters, skin reddening, skin peeling, swollen lymph nodes
- Severe sleepiness and dizziness
- Suicidal behavior or thoughts of self-harm
Source: DailyMed
The following Sympazan side effects have also been reported
Side effects that you should report to your care team as soon as possible:
- Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
- CNS depression—slow or shallow breathing, shortness of breath, feeling faint, dizziness, confusion, trouble staying awake
- Rash, fever, and swollen lymph nodes
- Redness, blistering, peeling, or loosening of the skin, including inside the mouth
- Thoughts of suicide or self-harm, worsening mood, feelings of depression
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
- Constipation
- Dizziness
- Drowsiness
- Excessive drooling
- Fever
- Unusual weakness or fatigue
