RISPERDAL® CONSTA® (risperidone) Long Acting Injection

About Schizophrenia
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Symptoms of Schizophrenia

People with schizophrenia may experience different types of symptoms – and not everyone experiences the same symptoms. Some people may have only a few symptoms, while others may have many. Generally, these symptoms fall into two different categories: “positive” symptoms and “negative” symptoms. A person with positive symptoms exhibits signs of “added” experiences or behaviors. When a person demonstrates a “lack of” or “reduction” of experiences or behaviors they have negative symptoms.

Positive symptoms may include:

  • Delusions – belief in ideas that are obviously false
  • Hallucinations - seeing or hearing things that do not exist
  • Agitation - nervousness
  • Paranoia - suspiciousness or unrealistic fears
  • Impulsiveness - taking action without really thinking about what you're doing
  • Disorganized thinking – unclear or confused thought

Negative symptoms may include:

  • Lack of drive or initiative – daily activities cannot be accomplished (e.g., bathing)
  • Social withdrawal – isolate oneself from friends, family, and the public
  • Apathy – lack of feeling or emotion
  • Emotional unresponsiveness – has no feeling towards anything, the person would not cry if sad, show anger if mad, or smile/laugh when happy
  • Anhedonia – diminished ability to experience pleasure

You may have heard the term “psychotic” used in association with schizophrenia. A psychotic episode is a state of mental impairment, during which a person may experience hallucinations, delusions, and/or may suffer from disorganized speech or thinking.

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Frequently Asked Questions
Frequently Asked Questions
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RISPERDAL® CONSTA® (risperidone) is used for the treatment of schizophrenia.

IMPORTANT SAFETY INFORMATION FOR RISPERDAL® CONSTA®

Elderly Patients with dementia-related psychosis treated with atypical antipsychotic drugs are at an increased risk of death compared to placebo. RISPERDAL® CONSTA® (risperidone) is not approved for the treatment of patients with dementia-related psychosis.

Neuroleptic Malignant Syndrome (NMS) is a rare and potentially fatal side effect reported with RISPERDAL® CONSTA® and similar medicines. Call your doctor immediately if the person being treated develops symptoms such as high fever; stiff muscles; shaking; confusion; sweating; changes in pulse, heart rate, or blood pressure; or muscle pain and weakness. Treatment should be stopped if the person being treated has NMS.

Tardive Dyskinesia (TD) is a serious, sometimes permanent side effect reported with RISPERDAL® CONSTA® and similar medications. TD includes uncontrollable movements of the face, tongue, and other parts of the body. The risk of developing TD and the chance that it will become permanent is thought to increase with the length of therapy and the overall dose taken by the patient. This condition can develop after a brief period of therapy at low doses, although this is much less common. There is no known treatment for TD, but it may go away partially or completely if therapy is stopped.

High blood sugar and diabetes have been reported with RISPERDAL® CONSTA® and similar medications. If the person being treated has diabetes or risk factors such as being overweight or a family history of diabetes, blood sugar testing should be performed at the beginning and throughout treatment with RISPERDAL® CONSTA®. Complications of diabetes can be serious and even life threatening. If signs of high blood sugar or diabetes develop, such as being thirsty all the time, going to the bathroom a lot, or feeling weak or hungry, contact your doctor.

RISPERDAL® CONSTA® and similar medications can raise the blood levels of a hormone known as prolactin, causing a condition known as hyperprolactinemia. Blood levels of prolactin remain elevated with continued use. Some side effects seen with these medications include the absence of a menstrual period; breasts producing milk; the development of breasts by males; and the inability to achieve an erection. The connection between prolactin levels and side effects is unknown.

Some people taking RISPERDAL® CONSTA® may feel faint or lightheaded when they stand up or sit up too quickly. By standing up or sitting up slowly and following your healthcare professional's dosing instructions, this side effect can be reduced or it may go away over time.

RISPERDAL® CONSTA® may affect your alertness or driving ability; therefore, do not drive or operate machinery before talking to your healthcare professional.

RISPERDAL® CONSTA® should be used cautiously in people with a seizure disorder, who have had seizures in the past, or who have conditions that increase their risk for seizures.

Extrapyramidal Symptoms (EPS) are usually persistent movement disorders or muscle disturbances, such as restlessness, tremors, and muscle stiffness. If you observe any of these symptoms, talk to your healthcare professional.

Inform your healthcare professional if you become pregnant or intend to become pregnant during therapy with RISPERDAL® CONSTA®. Caution should be exercised when RISPERDAL® CONSTA® is administered to a nursing woman.

RISPERDAL® CONSTA® may make you more sensitive to heat. You may have trouble cooling off, or be more likely to become dehydrated, so take care when exercising or when doing things that make you warm.

Some medications interact with RISPERDAL® CONSTA®. Please inform your healthcare professional of any medications or supplements that you are taking. Avoid alcohol while on RISPERDAL® CONSTA®.

In a study of people taking RISPERDAL® CONSTA®, the most common side effects in the treatment of schizophrenia were headache, tremors, dizziness, restlessness, tiredness, constipation, indigestion, sleepiness, weight gain, pain in the limbs, and dry mouth.

If you have any questions about RISPERDAL® CONSTA® or your therapy, talk with your doctor.

For more information, read the Important Product Information by clicking here.

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This page was last updated on: Oct 08 2007 at 14:47:01 EDT