risperidone - injection, Risperdal Consta (cont.)
HOW TO USE: This drug is given by intramuscular injection into the buttock by a healthcare professional once every two weeks. Injections should alternate between the two buttocks. Do not give by injection into a vein (intravenously).Injected risperidone may take up to three weeks to begin working. During this time, you should still take the oral form of this drug or another medication for your condition by mouth. After three weeks, your doctor should have you stop taking the oral form, but follow the directions provided.The dosage is based on your medical condition and response to therapy. Continue to take this medication as directed, even if you are feeling better and thinking more clearly.
SIDE EFFECTS: Dizziness, drowsiness, fatigue, dry mouth, indigestion, constipation, runny nose, weight gain or loss, acne, dry skin, or redness/swelling/pain at the injection site may occur. If any of these effects persist or worsen, contact your doctor or pharmacist promptly.To minimize dizziness and lightheadedness, get up slowly when rising from a seated or lying position.Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.Tell your doctor right away if you have any side effects, including: severe dizziness, fast/pounding/irregular heartbeat, mental/mood changes, tremor, fever, muscle stiffness/spasms/twitching, sweating, uncontrolled muscle movements (e.g., tongue and facial muscles), drooling, difficulty swallowing, seizures, frequent falls, signs of infection (such as fever, persistent sore throat), breast lumps, change in amount of urine.Get medical help right away if any of these rare but very serious side effects occur: chest pain, fainting, numbness in the face/arms/legs.For males, in the very unlikely event you have a painful or prolonged erection lasting 4 or more hours, stop using this drug and get medical help right away, or permanent problems could occur.This medication may in rare instances increase your blood level of a certain hormone (prolactin). In females, an increase in prolactin levels may result in unwanted breast milk, the end of menstruation or difficulty becoming pregnant. In males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts. If you develop any of these symptoms, tell your doctor immediately.This drug may infrequently make your blood sugar level rise, therefore causing or worsening diabetes. This high blood sugar can rarely cause serious conditions such as diabetic coma. Tell your doctor immediately if you develop symptoms of high blood sugar, such as unusual increased thirst and urination. If you already have diabetes, be sure to check your blood sugar level regularly.This drug may also cause significant weight gain and a rise in your blood cholesterol (or triglyceride) levels. These effects, along with diabetes, may increase your risk for developing heart disease. Discuss the risks and benefits of treatment with your doctor. (See also Notes section.)A serious allergic reaction to this drug is unlikely, but get medical help right away if it occurs. Symptoms of a serious allergic reaction include: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.In the US -Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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