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.
Common side effects:
- drowsiness
- dizziness
- lightheadedness
- weakness
- nausea
- vomiting
- runny nose
- cough
Tell your doctor right away if you have any serious side effects, including:
- difficulty swallowing
- muscle spasms
- shaking (tremor)
- mental/mood changes (such as restlessness)
- signs of infection (such as fever, persistent sore throat)
- vision changes
This drug may infrequently make your blood sugar level rise, which can cause or worsen diabetes.
This drug may also rarely 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.
This drug may rarely cause a condition known as tardive dyskinesia. Tell your doctor immediately if you develop any unusual/uncontrolled movements (especially of the face, mouth, tongue, arms, or legs).
This medication may increase a certain natural substance (prolactin) made by your body.
- For females, this increase in prolactin may result in unwanted breast milk, missed/stopped periods, or difficulty becoming pregnant.
- For males, it may result in decreased sexual ability, inability to produce sperm, or enlarged breasts.
Get medical help right away if you have any very serious side effects, including:
- severe dizziness,
- fainting,
- seizures,
- swollen lymph glands,
- signs of liver damage (such as persistent nausea/vomiting, loss of appetite, stomach/abdominal pain, yellowing eyes/skin)
Rarely, males may have a painful or prolonged erection lasting 4 or more hours. If this occurs, stop using this drug and get medical help right away, or permanent problems could occur.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.