All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Invega:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision or other vision changes; chest pain; confusion; dark urine; decreased sexual ability; decreased urination; dehydration; difficulty speaking or swallowing; drooling; enlarged breasts; excessive or unusual sweating; fainting; fast or irregular heartbeat; fever, chills, or persistent sore throat; hallucinations; mental or mood changes (eg, abnormal thinking, agitation, anxiety, depression); missed menstrual period or other menstrual changes; nipple discharge; prolonged, painful erection; rigid or stiff muscles; seizures; severe or persistent dizziness, headache, or vomiting; shuffling walk; uncontrolled muscle movements (eg, of the arms, legs, tongue, jaw, cheeks; tremors; twitching); yellowing of the skin or eyes.
Seek medical attention right away if any of these SEVERE side effects occur when using Invega:
Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue; unusual hoarseness); abnormal thoughts; behavior changes; chest pain; confusion; decreased sexual ability; decreased urination; enlarged breasts; fainting; fast, slow, or irregular heartbeat; fever, chills, or persistent sore throat; increased saliva production or drooling; increased sweating; loss of consciousness; mental or mood changes; missed menstrual period; muscle cramps, pain, weakness, or stiffness; nipple discharge; one-sided weakness; prolonged, painful erection; seizures; severe or prolonged dizziness or headache; shortness of breath; slurred speech; suicidal thoughts or attempts; swelling of the hands, ankles, and feet; symptoms of high blood sugar (eg, increased thirst, hunger, or urination; unusual weakness); tremor; trouble concentrating, speaking, or swallowing; trouble urinating or inability to control urination; trouble sitting still; trouble walking or standing; uncontrolled muscle movements (eg, arm or leg movements, twitching of the face or tongue, jerking or twisting); unusual eye movements; vision problems.
This is not a complete list of all side effects that may occur. If you have questions about side effects, contact your health care provider. Call your doctor for medical advice about side effects. To report side effects to the appropriate agency, please read the Guide to Reporting Problems to FDA.
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Most pharmaceutical companies offer medication assistance programs for people who cannot afford their medications. See www.pparx.org for more information.