Comparing Contrave vs Qsymia
| Contrave (bupropion / naltrexone) | Qsymia (phentermine / topiramate) |
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| Contrave (bupropion / naltrexone) | Qsymia (phentermine / topiramate) |
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Prescription only
Prescribed for Weight Loss (Obesity/Overweight). Contrave may also be used for purposes not listed in this medication guide. |
Prescription only
Prescribed for Weight Loss (Obesity/Overweight). Qsymia may also be used for purposes not listed in this medication guide. |
Related suggestions Weight Loss (Obesity/Overweight)
Popular comparisons
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| More about Contrave (bupropion / naltrexone) | More about Qsymia (phentermine / topiramate) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Contrave has an average rating of 6.6 out of 10 from a total of 1993 ratings on Drugs.com. 54% of reviewers reported a positive effect, while 25% reported a negative effect. |
Qsymia has an average rating of 7.6 out of 10 from a total of 567 ratings on Drugs.com. 70% of reviewers reported a positive effect, while 15% reported a negative effect. |
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| Side Effects Experienced by Users Side effects are reported in Drugs.com user reviews and not clinically verified. | |||||||||||||||||
View all Contrave side effects |
View all Qsymia side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Contrave prices |
View all Qsymia prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
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N/A |
N/A |
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| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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21 hours |
65 hours |
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| CSA Schedule 1 View glossary of CSA terms | |||||||||||||||||
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Not a controlled drug
Is not subject to the Controlled Substances Act. |
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. |
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| Pregnancy Category | |||||||||||||||||
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Category X
Not for use in pregnancy
See the full pregnancy warnings document. |
Category X
Not for use in pregnancy
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 780 drugs are known to interact with Contrave:
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A total of 417 drugs are known to interact with Qsymia:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
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| First Approval Date | |||||||||||||||||
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September 10, 2014 |
July 17, 2012 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
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| Related Treatment Guide | |||||||||||||||||
1 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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.