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
Adults:
- Sleepiness (14%)
- Inability to move muscles on your own (8%)
- Restlessness (8%)
- Drowsiness (7%)
- Dry mouth (5%)
- Behavior problems (5%)
Children:
- Sleepiness (28%)
- Behavior problems (28%)
- Weakness (25%)
- Headache (22%)
- Drooling (14%)
Less Common Side Effects
- Constipation
- Diarrhea
- Muscle tightness
- Trouble sleeping
- Vision changes
- Erectile dysfunction
- Trouble swallowing
- Muscle pain
- Rash
Pimozide serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Tardive dyskinesia: uncontrollable movements like lip smacking, eye blinking, sticking out your tongue, grimacing
- Neuroleptic malignant syndrome: high fever, fast heart rate, full body stiffness, confusion
Source: DailyMed
The following Pimozide 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
Difficulty with speaking
dizziness or fainting
fast or irregular heartbeat
lack of facial expression
loss of balance control
mood or behavior changes
restlessness or need to keep moving
shuffling walk
slowed movements
stiffness of the arms and legs
swelling or soreness of the breasts (less common in males)
trembling and shaking of the fingers and hands
unusual secretion of milk (rare in males)
Less common or rare
Difficulty with swallowing
inability to move the eyes
increased blinking or spasms of the eyelid
lip smacking or puckering
menstrual changes
muscle spasms, especially of the face, neck, or back
puffing of the cheeks
rapid or worm-like movements of the tongue
skin rash and itching
sore throat and fever
swelling of the face
uncontrolled chewing movements
uncontrolled movements of the neck, trunk, arms, or legs, including twisting movements
unusual bleeding or bruising
unusual facial expressions or body positions
yellow eyes or skin
Rare
Convulsions (seizures)
difficult or unusually fast breathing
fast heartbeat or irregular pulse
fever (high)
high or low (irregular) blood pressure
increased sweating
loss of bladder control
muscle stiffness (severe)
Get emergency help immediately if any of the following symptoms of overdose occur:
Symptoms of overdose
Coma
dizziness (severe)
muscle trembling, jerking, or stiffness (severe)
troubled breathing (severe)
uncontrolled movements (severe)
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 or other vision problems
dizziness, lightheadedness, or fainting when getting up from a lying or sitting position
drowsiness
dryness of the mouth
Less common
Decreased sexual ability
headache
loss of appetite and weight
mental depression
tiredness or weakness
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.
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