Lorcaserin oral tablets
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Lorcaserin oral tablets
What is this medicine?
LORCASERIN (lor ca SER in) is used to help people lose weight and maintain weight loss. This medicine should be used with a reduced calorie diet and, if appropriate, an exercise program.
How should I use this medicine?
Take this medicine by mouth with a glass of water. Follow the directions on the prescription label. You can take it with or without food. Take your medicine at regular intervals. Do not take it more often than directed. Do not stop taking except on your doctor's advice.
Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.
What side effects may I notice from receiving this medicine?
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
confusion
fast or irregular heart beat
feeling faint or lightheaded, falls
fever or chills, sore throat
hallucinations
high or low blood pressure
males: prolonged or painful erection lasting more than 4 hours
menstrual changes
restlessness
signs and symptoms of low blood sugar such as feeling anxious; confusion; dizziness; increased hunger; unusually weak or tired; increased sweating; shakiness; cold, clammy skin; irritable; headache; blurred vision; fast heartbeat; loss of consciousness
slow or irregular heartbeat
stiff muscles
sweating
suicidal thoughts
swelling of the ankles, feet, hands
unusually weak or tired
vomiting
Side effects that usually do not require medical attention (report to your doctor or health care professional if they continue or are bothersome):
back pain
constipation
dizziness
dry mouth
headache
nausea
tiredness
What may interact with this medicine?
cabergoline
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
dextromethorphan
linezolid
lithium
medicines for diabetes
other weight loss products
tramadol
St. John's Wort
stimulant medicines for attention disorders, weight loss, or to stay awake
tryptophan
What if I miss a dose?
If you miss a dose, take it as soon as you can. If it is almost time for your next dose, take only that dose. Do not take double or extra doses.
Where should I keep my medicine?
Keep out of the reach of children. This medicine can be abused. Keep your medicine in a safe place to protect it from theft. Do not share this medicine with anyone. Selling or giving away this medicine is dangerous and against the law.
Store at room temperature between 15 and 30 degrees C (59 and 86 degrees F). Throw away any unused medicine after the expiration date.
What should I tell my health care provider before I take this medicine?
They need to know if you have any of these conditions:
anatomical deformation of the penis, Peyronie's disease, or history of priapism (painful and prolonged erection)
diabetes
heart disease
history of sickle cell anemia, mulitple myeloma, or leukemia
history of irregular heartbeat
kidney disease
liver disease
suicidal thoughts, plans, or attempt; a previous suicide attempt by you or a family member
an unusual or allergic reaction to lorcaserin, other medicines, foods, dyes, or preservatives
pregnant or trying to get pregnant
breast-feeding
What should I watch for while using this medicine?
Visit your health care professional for regular checks on your progress. You may need blood work done while you are taking this medicine.
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. Ask your healthcare provider if changes in diet or medicines are needed if you have diabetes.
Patients and their families should watch out for new or 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 healthcare 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.
Women should inform their health care provider if they wish to become pregnant or think they might be pregnant. Losing weight while pregnant is not advised and may cause harm to the unborn child. Talk to your health care provider for more information.
This medicine may increase your risk of cancer. Talk to your health care professional about risks and benefits.
Updated:  
October 27, 2020