RISPERDAL Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

  • a type of movement disorder called parkinsonism
  • extrapyramidal disease, a type of movement disorder
  • a change in vision
  • a feeling of restlessness with inability to sit still
  • a type of abnormal movement disorder called dyskinesia

If experienced, these tend to have a Less Severe expression i

  • throat irritation
  • a sore throat
  • a stuffy and runny nose
  • stuffy nose
  • excessive saliva production
  • dry mouth
  • indigestion
  • constipation
  • drowsiness
  • inducing of a relaxed easy state
  • difficulty sleeping
  • low energy
  • weight gain
  • increased hunger
  • changes in appetite
  • headache
  • cough
  • nausea
  • vomiting
  • diarrhea
  • reactions at the site of the injection
  • runny nose
  • abnormal muscle movements
  • anxious feelings

INFREQUENT side effects

If experienced, these tend to have a Severe expression i

  • orthostatic hypotension, a form of low blood pressure
  • low blood pressure

If experienced, these tend to have a Less Severe expression i

  • a high prolactin level
  • confusion
  • a problem with menstrual periods
  • joint pain
  • backache
  • muscle weakness
  • muscle pain
  • pain in the arms or legs
  • loss of muscle coordination
  • nosebleed
  • heart throbbing or pounding
  • stomach cramps
  • generalized weakness

RARE side effects

If experienced, these tend to have a Severe expression i

  • a tumor of the pituitary gland
  • diabetes
  • a disorder with excess antidiuretic hormone called syndrome of inappropriate antidiuretic hormone
  • undue retention of water with sodium depletion
  • anemia
  • decreased blood platelets
  • very low levels of granulocytes, a type of white blood cell
  • low levels of white blood cells
  • low levels of a type of white blood cell called neutrophils
  • tardive dyskinesia, a disorder characterized by involuntary movements of the face, mouth and tongue
  • neuroleptic malignant syndrome, a reaction characterized by fever, muscle rigidity and confusion
  • high blood pressure
  • a clot in the lung
  • atrioventricular block, a type of slow heart rhythm disorder
  • a type of slowed heart rhythm disorder called heart block
  • abnormal heart electrical signals
  • atrial fibrillation
  • slow heartbeat
  • sinus tachycardia, a type of fast heart rate
  • a transient ischemic attack, a type of stroke that lasts only a few minutes
  • a stroke
  • cerebral ischemia, a lack of blood supply to the brain
  • thrombotic thrombocytopenic purpura, a type of blood disorder
  • pneumonia
  • the flu
  • pneumonia due to accidental inhalation of vomit
  • blocked bowels with decreased peristaltic movement
  • blockage of the stomach or intestine
  • priapism, a prolonged erection of the penis
  • a skin disorder with blistering and peeling skin called toxic epidermal necrolysis
  • a skin disorder with blistering and peeling skin called Stevens-Johnson syndrome
  • a condition with muscle tissue breakdown called rhabdomyolysis
  • decreased alertness or consciousness
  • seizures
  • sleep apnea
  • fever
  • swelling of the tongue
  • abnormal liver function tests
  • low body temperature
  • a significant type of allergic reaction called anaphylaxis
  • a type of allergic reaction called angioedema
  • accidental falls
  • problems with food passing through the esophagus
  • a yellowing of the eyes or skin from buildup of bilirubin called jaundice
  • pancreatitis
  • floppy iris during eye surgery
  • a type of significant allergic skin reaction called DRESS syndrome
  • a state of stupor and unresponsiveness called catatonia

If experienced, these tend to have a Less Severe expression i

  • problems with ejaculation
  • visual sensitivity to light
  • a decrease in sharpness of vision called reduced visual acuity
  • an increased amount of blood in the lining of the eye called conjunctival hyperemia
  • accumulation of fluid in the tissues of the eyelid
  • crusting of the eyelid
  • ringing in the ears
  • an earache
  • inflammation of the lips
  • a type of stomach irritation called gastritis
  • urinary tract infection
  • breast pain
  • absence of menstrual periods
  • hair loss
  • joint stiffness
  • muscle spasm
  • sensation of spinning or whirling
  • a sleep disorder
  • taste impairment
  • numbness
  • fluid retention in the legs, feet, arms or hands
  • a type of speech disorder called dysarthria
  • gas
  • the inability to control a bowel movement
  • chest pains unrelated to heart problems
  • an infection of the ear
  • a change in the ability to pay attention
  • pain in the muscles or bones
  • retrograde ejaculation
  • lip swelling

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Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.