Adipex-P Alternatives Compared
| Adipex-P | Phentermine | Megestrol |
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| Adipex-P phentermine | Phentermine | Megestrol |
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Prescribed for Weight Loss, Obesity. Adipex-P may also be used for purposes not listed in this medication guide. |
Phentermine may be used short-term as an aid to weight loss; however, it can be addictive and tolerance may develop to its weight-losing effects, rendering it less effective with time. Prescribed for... View more |
Prescribed for Abnormal Uterine Bleeding, Anorexia, AIDS Related Wasting, Breast Cancer - Palliative, Cachexia, Endometrial Cancer, Endometrial Hyperplasia, Hot Flashes. May also be prescribed off... View more |
Choose a suggestion below Popular Comparisons
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| More about Adipex-P (phentermine) | More about Phentermine | More about Megestrol | ||||||||||||||||||||||||
| Generic Status | ||||||||||||||||||||||||||
| Availability | ||||||||||||||||||||||||||
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Prescription only |
Prescription only |
Prescription only |
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| Ratings & Reviews | ||||||||||||||||||||||||||
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Adipex-P has an average rating of 8.9 out of 10 from a total of 598 ratings on Drugs.com. 86% of reviewers reported a positive effect, while 4% reported a negative effect. |
Phentermine has an average rating of 8.7 out of 10 from a total of 2922 ratings on Drugs.com. 84% of reviewers reported a positive effect, while 5% reported a negative effect. |
Megestrol has an average rating of 7.4 out of 10 from a total of 122 ratings on Drugs.com. 65% of reviewers reported a positive effect, while 19% reported a negative effect. |
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| Drug Class | ||||||||||||||||||||||||||
| Side Effects | ||||||||||||||||||||||||||
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See the full Adipex-P side effects document. |
See the full phentermine side effects document. |
See the full megestrol side effects document. |
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| Pricing and Coupons * Prices are without insurance | ||||||||||||||||||||||||||
View all Adipex-P prices and generic prices |
View all phentermine prices |
View all megestrol prices |
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| Dosage Form(s) Available | ||||||||||||||||||||||||||
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| Brand Names | ||||||||||||||||||||||||||
| Other phentermine brands include: Atti-Plex P, Lomaira | Adipex-P, Atti-Plex P, Lomaira | Megace ES | ||||||||||||||||||||||||
| 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. | ||||||||||||||||||||||||||
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20 hours |
20 hours |
20 hours |
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| CSA Schedule** View glossary of terms | ||||||||||||||||||||||||||
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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. |
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 | ||||||||||||||||||||||||||
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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. |
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 171 drugs are known to interact with Adipex-P:
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A total of 171 drugs are known to interact with phentermine:
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A total of 142 drugs are known to interact with megestrol:
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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 | ||||||||||||||||||||||||||
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October 22, 1980 |
August 14, 1973 |
August 18, 1971 |
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| WADA Class View World Anti-Doping Agency classifications. | ||||||||||||||||||||||||||
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N/A |
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| 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.