Comparing Adipex-P vs Xenical
Adipex-P | Xenical |
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Adipex-P (phentermine) | Xenical (orlistat) |
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Prescription only
Prescribed for Weight Loss (Obesity/Overweight). Adipex-P may also be used for purposes not listed in this medication guide. |
Prescription only
Prescribed for Weight Loss (Obesity/Overweight). Xenical 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 Adipex-P (phentermine) | More about Xenical (orlistat) | ||||||||||||||||
Ratings & Reviews | |||||||||||||||||
Adipex-P has an average rating of 8.9 out of 10 from a total of 610 ratings on Drugs.com. 86% of reviewers reported a positive effect, while 4% reported a negative effect. |
Xenical has an average rating of 8.4 out of 10 from a total of 123 ratings on Drugs.com. 74% of reviewers reported a positive effect, while 7% reported a negative effect. |
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Drug Class | |||||||||||||||||
Side Effects | |||||||||||||||||
See also: Adipex-P side effects in more detail. |
See also: Xenical side effects in more detail. |
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Generic Availability | |||||||||||||||||
N/A |
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Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Adipex-P prices |
View all Xenical prices |
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Dosage Forms Available | |||||||||||||||||
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Brand Names | |||||||||||||||||
Other phentermine brands include: Atti-Plex P, Lomaira | Other orlistat brands include: Alli | ||||||||||||||||
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. | |||||||||||||||||
20 hours |
13.5 hours |
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CSA Schedule ** View glossary of terms | |||||||||||||||||
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. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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Pregnancy Category | |||||||||||||||||
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 | |||||||||||||||||
A total of 194 drugs are known to interact with Adipex-P:
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A total of 144 drugs are known to interact with Xenical:
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Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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No known alcohol/food interactions. This does not necessarily mean no interactions exist. Always consult your healthcare provider. |
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Disease Interactions | |||||||||||||||||
First Approval Date | |||||||||||||||||
October 22, 1980 |
April 23, 1999 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
N/A |
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More Information | |||||||||||||||||
Patient 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.