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
Children (age 1 to younger than 4 years old)
- Vomiting (24%)
- Drowsiness (16%)
- Bronchitis (12%)
- Constipation (12%)
- Cough (12%)
- Low appetite (12%)
- Rash (12%)
Children (age 3 to younger than 17 years old)
- Drowsiness (17%)
- Vomiting (17%)
- Headache (16%)
- Tiredness (9%)
- Dizziness (8%)
- Nausea (7%)
Adults
- Headache (27%)
- Dizziness (19%)
- Tiredness (16%)
- Nausea (12%)
- Drowsiness (11%)
Less Common Side Effects
Children
- Flu-like symptoms
- Cold symptoms
- Difficulty with movement or coordination
- Double vision
- Low appetite
- Rash
- Ear infection
Adults
- Vomiting
- Constipation
- Indigestion (upset stomach)
- Stomach pain
- Back pain
- Uncontrolled shaking (tremor)
- Problems with movement, coordination, or walking
- Anxiety
- Changes in vision (e.g., double vision, blurred vision)
- Eye twitching
Rufinamide serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Thoughts of hurting yourself or suicide
- Worsened seizures or seizure attack
- Allergic reaction: fever, rash, swollen lymph nodes, swelling of the face or mouth
Source: DailyMed
The following Rufinamide side effects have also been reported
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor immediately if any of the following side effects occur:
More common
Dizziness
shakiness in the legs, arms, hands, or feet
sleepiness or unusual drowsiness
trembling or shaking of the hands or feet
uncontrolled eye movements
Less common
Attack, assault, or force
black, tarry stools
chills
cough producing mucus
difficult or painful urination
difficulty with breathing
dizziness or lightheadedness
fear or nervousness
feeling of constant movement of self or surroundings
general feeling of discomfort or illness
headache
joint pain
loss of appetite
muscle aches and pains
pain or tenderness around the eyes and cheekbones
rash
restlessness
sensation of spinning
shakiness and unsteady walk
shivering
sores, ulcers, or white spots on the lips or in the mouth
stuffy or runny nose
sweating
swollen glands
tightness in the chest
trouble sitting still
trouble sleeping
trouble walking
unsteadiness, trembling, or other problems with muscle control or coordination
unusual bleeding or bruising
unusual tiredness or weakness
vomiting
Rare
Bleeding gums
blood in the urine or stools
burning while urinating
fainting
inability to hold urine
increased urge to urinate during the night
increased volume of pale, dilute urine
lower back or side pain
pale skin
pinpoint red spots on the skin
pounding, slow heartbeat
sore tongue
swollen, painful, or tender lymph glands in the neck, armpit, or groin
troubled breathing with exertion
waking to urinate at night
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. 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:
More common
Blurred vision
double vision
seeing double
Less common
Acid or sour stomach
back pain
belching
change in hearing
decreased appetite
difficulty having a bowel movement (stool)
ear drainage
indigestion
itching skin
stomach discomfort, upset, or pain
upper abdominal or stomach pain
Rare
Increased appetite
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Other Rufinamide articles
Why trust our experts?
