BELVIQ is available in 2 different doses. BELVIQ 10 mg is a blue tablet taken twice daily. BELVIQ XR 20 mg is an orange tablet taken once daily. BELVIQ/ BELVIQ XR can be taken with or without food.

One 10-mg pill twice per day


One 20-mg pill once per day

Tablets are not actual size.

When combined with diet and exercise, BELVIQ/BELVIQ XR may help you achieve your weight-loss goals.

Here are some things to remember when adding BELVIQ/BELVIQ XR to your routine:

  • Take your medication daily and exactly as prescribed
  • Be sure to combine BELVIQ/BELVIQ XR with a reduced-calorie diet and exercise
    • Consult with your doctor before beginning any exercise program
  • If you miss a dose, wait until your next scheduled dose, then resume your normal schedule
  • Never take more than 1 pill at a time
  • Take BELVIQ/BELVIQ XR whole. Do not chew, crush, or divide the tablet
  • Taking too much BELVIQ/BELVIQ XR may cause hallucinations, a feeling of being high or in a very good mood, or feelings of standing outside your body
  • Your doctor will check your progress after 12 weeks and should tell you to stop taking BELVIQ/BELVIQ XR if you have not lost at least 5% of your body weight
  • Weight-loss results can take time. Remember that everyone responds differently

For more support, you can check out our healthy living tips or download our app to help you track your progress.

Track Your Progress

Stay motivated to achieve your goals with a free downloadable app that tracks your activity, meals, calories burned (even sets a daily calorie budget), body measurements, and other important health information. Then share it with your doctor.


Adding BELVIQ/BELVIQ XR to your routine

Taking your medication regularly is an important part of supporting your weight-loss goals. If you’re taking BELVIQ/BELVIQ XR, below are some tips that may help you stay on track and get the most out of your treatment.

Remember, you can ask your doctor or pharmacist for suggestions on making BELVIQ/BELVIQ XR part of your everyday routine.

Take your medication at the same time each day

Taking your medication at the same time each day can help you remember. You may find it helpful to set daily alerts on your phone.

Keep your medication in sight

If you keep forgetting to take your medication, try leaving it in a place where you'll notice it. If you take your medication with food, keep your pill bottle in the kitchen. Or if you take it when you wake up, put it on your bedroom nightstand. Like all medications, be sure to keep BELVIQ/BELVIQ XR out of the reach of children.

Use a container

Consider putting your daily dose of BELVIQ/BELVIQ XR in a portable pill case or small container and throw it in your bag. That way, you'll always have it with you in case you forget to take it.

Keep track

When you first start taking BELVIQ/BELVIQ XR try keeping track of each dose you take. You can track your doses in a journal or on your phone. If you ever miss a dose, you should wait until your next scheduled dose, then resume your normal schedule. Never take more than 1 pill at a time.

Please consult your doctor about how to take your medications.

Take Action, Lose Weight, Save on BELVIQ/BELVIQ XR

Talk to Your Doctor

Talking about weight loss doesn’t have to feel difficult. Our discussion guide has helpful tips to start the conversation.

Weight-Loss Stories

Sometimes the best inspiration comes from knowing it worked for people like you.


Save money by downloading the BELVIQ/BELVIQ XR Savings Card.*
*Restrictions apply.


BELVIQ/BELVIQ XR is an FDA-approved prescription weight-loss medication that, when used with diet and exercise, can help some adults (body mass index [BMI] 27 kg/m2) living with extra weight, with a weight-related medical problem, or adults living with obesity (BMI 30 kg/m2), lose weight and keep it off. It is not known if BELVIQ/BELVIQ XR when taken with other prescription, over-the-counter, or herbal weight-loss products is safe and effective. It is not known if BELVIQ/BELVIQ XR changes your risk of heart problems, stroke, or death due to heart problems or stroke.


  • Pregnancy: Do not take if you are pregnant or planning to become pregnant, as weight loss offers no benefit during pregnancy and BELVIQ/BELVIQ XR may harm your unborn baby.
  • Hypersensitivity reactions: Do not take if you are allergic to lorcaserin or any of the ingredients in BELVIQ/BELVIQ XR.
  • Serotonin Syndrome or Neuroleptic Malignant Syndrome (NMS)–like reactions: Before using, tell your Healthcare Provider about all the medicines you take, especially medicines that treat depression, migraines, mental problems, or the common cold. These medicines may cause serious or life-threatening side effects if taken with BELVIQ/BELVIQ XR. Call your Healthcare Provider right away if you experience agitation, hallucinations, confusion, or other changes in mental status; coordination problems; uncontrolled muscle spasms; muscle twitching; restlessness; racing or fast heartbeat; high or low blood pressure; sweating; fever; nausea; vomiting; diarrhea; or stiff muscles.
  • Valvular heart disease: Some people taking medicines like BELVIQ/BELVIQ XR have had heart valve problems. Call your Healthcare Provider right away if you experience trouble breathing; swelling of the arms, legs, ankles, or feet; dizziness, fatigue, or weakness that will not go away; or fast or irregular heartbeat. Before taking BELVIQ/BELVIQ XR, tell your Healthcare Provider if you have or have had heart problems.
  • Changes in attention or memory: BELVIQ/BELVIQ XR may slow your thinking. You should not drive a car or operate heavy equipment until you know how BELVIQ/BELVIQ XR affects you.
  • Mental problems: Taking too much BELVIQ/BELVIQ XR may cause hallucinations, a feeling of being high or in a very good mood, or feelings of standing outside your body.
  • Depression or thoughts of suicide: Call your Healthcare Provider right away if you notice any mental changes, especially sudden changes in your mood, behaviors, thoughts, or feelings, or if you have depression or thoughts of suicide.
  • Low blood sugar: Weight loss can cause low blood sugar in people taking medicines for type 2 diabetes, such as insulin or sulfonylureas. Blood sugar levels should be checked before and while taking BELVIQ/BELVIQ XR. Changes to diabetes medication may be needed if low blood sugar develops.
  • Painful erections: If you have an erection lasting more than 4 hours while on, stop taking BELVIQ/BELVIQ XR and call your Healthcare Provider or go to the nearest emergency room right away.
  • Slow heartbeat: BELVIQ/BELVIQ XR may cause your heart to beat slower.
  • Decreases in blood cell count: BELVIQ/BELVIQ XR may cause your red and white blood cell counts to decrease.
  • Increase in prolactin: BELVIQ/BELVIQ XR may increase the amount of a hormone called prolactin. Tell your Healthcare Provider if your breasts begin to make milk or a milky fluid, or if you are a male and your breasts increase in size.
  • Most common side effects of BELVIQ/BELVIQ XR: Headache, dizziness, fatigue, nausea, dry mouth, constipation, cough, low blood sugar (hypoglycemia) in patients with diabetes, and back pain.
  • Nursing: BELVIQ/BELVIQ XR should not be taken while breastfeeding.
  • Drug interactions: Before taking BELVIQ/BELVIQ XR, tell your Healthcare Provider if you take medicines for depression, migraines, or other medical conditions, such as: triptans; medicines used to treat mood, anxiety, psychotic or thought disorders, including tricyclics, lithium, selective serotonin reuptake inhibitors, selective serotonin-norepinephrine reuptake inhibitors, monoamine oxidase inhibitors, or antipsychotics; cabergoline; linezolid (an antibiotic); tramadol; dextromethorphan (an over-the-counter [OTC] common cold/cough medicine); OTC supplements such as tryptophan or St. John’s Wort; or erectile dysfunction medicines.

BELVIQ/BELVIQ XR is a federally controlled substance (CIV) because it may be abused or lead to drug dependence.
For more information about BELVIQ/BELVIQ XR talk to your Healthcare Provider and see the full Product Information.
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.