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
- Abnormal muscle movements (up to 40%)
- Drowsiness (up to 26%)
- Headache (up to 14%)
- Irregular heart beat (up to 14%)
- Vomiting (up to 11%)
- Anxiety (up to 9%)
Less Common Side Effects
- Weight gain
- Making more saliva
- Dry mouth
- Cough
- Upset stomach
- Constipation
- Dizziness
Invega serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Neuroleptic malignant syndrome: high fever, muscle stiffness, confusion, sweating, changes in pulse, heart rate, changes in blood pressure
- Tardive dyskinesia: uncontrolled muscle movements, such as facial grimacing, lip-smacking, blinking
- Extremely high blood sugar levels: feeling very hungry or thirsty, urinating more often, stomach pain, weakness, fruity-smelling breath
- Priapism: painful erection that that lasts longer than 4 hours
- Difficulty swallowing
- Seizures
Source: DailyMed
The following Invega 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
fast, pounding, or irregular heartbeat or pulse
increase in body movements
loss of balance control
muscle trembling, jerking, or stiffness
shuffling walk
stiffness of the limbs
twisting movements of the body
uncontrolled movements, especially of the face, neck, and back
Less common
cold sweats
confusion
difficulty with swallowing
dizziness
excessive muscle tone
fainting
inability to move the eyes
increased blinking or spasms of the eyelid
increased blood pressure
mask-like face
muscle tension or tightness
pain in the arms or legs
slow heartbeat
slowed movements
slurred speech
sticking out of the tongue when not meaning to
tic-like (jerky) movements of the head, face, mouth, and neck
trembling and shaking of the fingers and hands
trouble with breathing, speaking, or swallowing
uncontrolled twisting movements of the neck, trunk, arms, or legs
unusual facial expressions
unusual tiredness or weakness
Incidence not known
Black, tarry stools
blood in the urine
bloody nose
decrease in the frequency of urination
decrease in urine volume
decreased awareness or responsiveness
difficulty in passing urine (dribbling)
heavier menstrual periods
large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or genitals
lip smacking or puckering
loss of bladder control
mimicry of speech or movements
peculiar postures or movements, mannerisms, or grimacing
painful or prolonged erection of the penis
pinpoint red spots on the skin
puffing of cheeks
rapid or worm-like movements of the tongue
severe constipation
severe sleepiness
severe vomiting
skin rash
stomach pain
uncontrolled chewing movements
uncontrolled movements of the arms and legs
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
Absent, missed, or irregular menstrual periods
difficulty having a bowel movement
fear or nervousness
headache
inability to sit still
need to keep moving
sleepiness or unusual drowsiness
stopping of menstrual bleeding
vomiting
Less common
Back pain
belching
blurred vision
changes in appetite
indigestion
lack or loss of strength
muscle aches
stomach discomfort or upset
stuffy or runny nose
swelling or soreness of the breasts in both females and males
swollen tongue
unexpected or excess milk flow from breasts
upper stomach pain
Incidence not known
Sleepwalking
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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