Belviq XR Side Effects
What should I watch for?
This medicine is intended to be used in addition to a healthy diet and appropriate exercise. The best results are achieved this way. Your doctor should instruct you to stop using this medicine if you do not lose a certain amount of weight within the first 12 weeks of treatment, but it is important that you do not change your dose in any way without consulting your doctor or health care professional. Visit your doctor or health care professional for regular checkups. Your doctor may order blood tests or other tests to see how you are doing.
Do not drive, use machinery, or do anything that needs mental alertness until you know how this medicine affects you.
This medicine may affect blood sugar levels. If you have diabetes, check with your doctor or health care professional before you change your diet or the dose of your diabetic medicine.
Patients and their families should watch out for worsening depression or thoughts of suicide. Also watch out for sudden changes in feelings such as feeling anxious, agitated, panicky, irritable, hostile, aggressive, impulsive, severely restless, overly excited and hyperactive, or not being able to sleep. If this happens, especially at the beginning of treatment or after a change in dose, call your health care professional.
Contact your doctor or health care professional right away if you are a man with an erection that lasts longer than 4 hours or if the erection becomes painful. This may be a sign of serious problem and must be treated right away to prevent permanent damage.
Side Effects to watch for
Side effects that you should report to your doctor or health care professional as soon as possible:
- allergic reactions like skin rash, itching or hives, swelling of the face, lips, or tongue
- abnormal production of milk
- breast enlargement in both males and females
- breathing problems
- changes in emotions or moods
- changes in vision
- erection lasting more than 4 hours or a painful erection
- fast or irregular heart beat
- feeling faint or lightheaded, falls
- fever or chills, sore throat
- hallucination, loss of contact with reality
- high or low blood pressure
- menstrual changes
- signs and symptoms of low blood sugar such as feeling anxious; confusion; dizziness; increased hunger; unusually weak or tired; sweating; shakiness; cold; irritable; headache; blurred vision; fast heartbeat; loss of consciousness
- slow or irregular heartbeat
- stiff muscles
- suicidal thoughts or actions
- swelling of the ankles, feet, hands
- unusually weak or tired
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
What may interact with this drug?
- certain medicines for depression, anxiety, or psychotic disturbances
- certain medicines for erectile dysfunction
- certain medicines for migraine headache like almotriptan, eletriptan, frovatriptan, naratriptan, rizatriptan, sumatriptan, zolmitriptan
- medicines for diabetes
- other weight loss products
- St. John's Wort
- stimulant medicines for attention disorders, weight loss, or to stay awake