Common Headache, Sleepiness, Insomnia (difficulty in sleeping), Parkinsonism, Akathisia, Dystonia.

Expert advice for Invega Sustenna Injection

You can take paliperidone with or without breakfast, however, same pattern to be followed during the entire treatment.
Inform your doctor if you have known cardiovascular disease or family history of QT prolongation and if you are taking medicines that may prolong the QT interval.
Discontinue and inform you doctor immediately if you experience Neuroleptic Malignant Syndrome (NMS), characterised by hyperthermia (fever), muscle rigidity, autonomic instability, altered consciousness, and elevated serum creatine levels.
Inform your doctor if you have a swallowing, stomach or intestinal disorder that reduces your ability to swallow or pass foods by normal bowel movements.
You may suffer from tardive dyskinesia characterized by rhythmical, involuntary movements, predominantly of the tongue and/or face. Inform you doctor if you experience such symptoms.
You may suffer from priapism (prolonged and/or painful erection), inform your doctor if you experience such symptoms.
Do not drive or operate machinery as paliperidone may have some nervous effects and may cause visual disturbances. 
If you are a patient with diabetes, or with schizophrenia, taking paliperidone may increase the risk of developing diabetes. You should monitor glucose regularly while on paliperidone treatment.
Seek immediate medical attention if the thoughts of suicide occur when on paliperidone therapy.
Tell your doctor if you are or planning to become pregnant or are breastfeeding.

Q. Is paliperidone the same as risperidone?
Paliperidone gets converted to risperidone in the body and thus exerts similar actions

Q. Is Invega sustenna a narcotic?
No, Invega sustenna is not a narcotic

Q. Is Invega sustenna an atypical antipsychotic?
Yes, Invega sustenna is an atypical antipsychotic

Q. How is Invega sustenna metabolized?
Invega sustenna is metabolized to its active metabolite risperidone by the CYP family of metabolizing enzymes

Q. Does Invega sustenna cause weight gain?
Yes, Invega sustenna is known to cause weight gain

Q. Does Invega sustenna cause erectile dysfunction?
Invega sustenna may cause priapism (prolonged and/or painful erection), which may contribute to erectile dysfunction. Please follow your doctor's advice regarding its use

Q. How long does Invega sustenna stay in your system?
Oral Invega sustenna may take 5 days to clear off from your body/system, whereas the injection may take around 4 to 8 months to clear off from your body/system.