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Comparing Belviq vs Phentermine / Topiramate

Belviq

lorcaserin

Phentermine / topiramate

Prescribed for Weight Loss, Obesity. Belviq may also be used for purposes not listed in this medication guide.

Prescribed for Obesity, Weight Loss. phentermine / topiramate may also be used for purposes not listed in this medication guide.

Prescription only

Prescription only

Ratings & Reviews

Recent helpful reviews
7.9
887 Reviews

For Weight Loss Today is my 2nd day taking belviq. I haven’t had any side effects yet and hopefully I don’t have any. But I was 170lb when I started now down to 166lb! I will keep you guys updated !!!

8
Meme

For Weight Loss Today is my 10th day on belviq. For a few days I felt a dizzy and felt overly cheerful and chatty. When I didn't feel any symptoms anymore I figured it wasn't working. I felt that way because I didn't feel jittery or high like some other diet pills would make a person feel. But in 10 days on belviq I'm down 12 pounds. I eat what I want for dinner (but a much smaller portion) and am careful about eating only healthy foods for breakfast, lunch & snacks. A week into starting the pills that the only effect it's having on me is suppressing my appetite, which I think is great! Ii sometimes have to force myself to eat because don't feel hungry. This pill doesn't keep me up at night. I honestly sleep better now than I did before the pills. I'm happy with my results so far will starting the gym soon. I'm very happy with this medication.

8
Kathy F
7.3
590 Reviews

For Weight Loss Been taking for two month and have lost 20 pounds. I take 400mg of magnesium daily which stops any constipation. Drink plenty of water eat healthy low carb diet, walk daily. Hope to lose 50 more lbs. side effects are minimal for me.

8
Juicyjan

For Weight Loss I have been on the combo of Phentermine and Topiramate for a month, I started at 180 lbs. I have lost 11 lbs, so now at 169 lbs....of course was hoping to loose more. I probably need to exercise more. I have had no side effects at all! I am watching what I eat and how much, I am drinking a lot of water and probably too much coffee (black) in the mornings, but I always do. I am on 37.5 mg tablet of Phentermine, started on 1/4 tablet...now on 1/2. I am taking 25 mg. of Topiramate, started on 1 tablet...now I am taking 2. I have no insurance and I have noticed that some have been concerned about cost. I have 2 scrips, About $20, Google Good RX for a coupon, most pharmacies accept it.

8
ElizabethDale

View all 887 reviews

View all 590 reviews

Drug Class

Side Effects

Common side effects include: headache, hypoglycemia, decreased hemoglobin, euphoria, and lymphocytopenia.

See the full Belviq side effects document.

Commonly reported side effects include: constipation, insomnia, nasopharyngitis, paresthesia, mood disorder, sleep disorder, and xerostomia.

See the full phentermine / topiramate side effects document.

Pricing and Coupons

* Prices are without insurance
Quantity 60 tablet
Dosage 10 mg
Per Unit* $5.01
Cost* $300.45
View all Belviq prices

We could not find an exact match for this medicine. Try searching the Price Guide directly.

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Generic Availability

No

No

Dosage Form(s) Available
  • Oral tablet
 N/A

Brand Names
Other lorcaserin brands include: Belviq XR Qsymia

Half Life

The half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value.

11 hours

65 hours

CSA Schedule**

View glossary of terms.
4
Some potential for abuse

Has a low potential for abuse relative to those in schedule 3. It has a currently accepted medical use in treatment in the United States. Abuse may lead to limited physical dependence or psychological dependence relative to those in schedule 3.
4
Some potential for abuse

Has a low potential for abuse relative to those in schedule 3. It has a currently accepted medical use in treatment in the United States. Abuse may lead to limited physical dependence or psychological dependence relative to those in schedule 3.

Pregnancy Category
X
Category X Not for use in pregnancy

See the full Pregnancy Warnings document.
X
Category X Not for use in pregnancy

See the full Pregnancy Warnings document.

FDA Alerts

N/A

FDA Alerts (1)

Drug Interactions

A total of 449 drugs are known to interact with Belviq:

  • 205 major drug interactions (1638 brand and generic names)
  • 240 moderate drug interactions (1528 brand and generic names)
  • 4 minor drug interactions (10 brand and generic names)

A total of 821 drugs are known to interact with phentermine / topiramate:

  • 416 major drug interactions (2928 brand and generic names)
  • 401 moderate drug interactions (2798 brand and generic names)
  • 4 minor drug interactions (15 brand and generic names)

Alcohol/Food/Lifestyle Interactions

No results found - however, this does not necessarily mean no warnings exist. Always consult with your doctor or pharmacist.
  • Using phentermine with alcohol can increase the risk of cardiovascular side effects such as... more

Disease Interactions

First Approval Date

June 27, 2012

July 17, 2012

WADA Class

View World Anti-Doping Agency classifications.

N/A

More Information

Consumer Resources

Professional Resources

Related Treatment Guide

** The Controlled Substances Act (CSA) schedule information displayed applies to substances regulated under federal law. There may be variations in CSA schedules between individual states.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

Medical Disclaimer

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