Comparing Dextroamphetamine vs Phentermine
| Dextroamphetamine | Phentermine |
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| Dextroamphetamine | Phentermine |
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Prescription only
Prescribed for ADHD, Sexual Dysfunction - SSRI Induced, Narcolepsy, Fatigue, Drowsiness. Dextroamphetamine may also be used for purposes not listed in this medication guide. |
Prescription only
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 |
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| More about Dextroamphetamine | More about Phentermine | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Dextroamphetamine has an average rating of 8.3 out of 10 from a total of 296 ratings on Drugs.com. 80% of reviewers reported a positive effect, while 10% reported a negative effect. |
Phentermine has an average rating of 8.7 out of 10 from a total of 3015 ratings on Drugs.com. 84% of reviewers reported a positive effect, while 5% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Dextroamphetamine prices |
View all Phentermine prices |
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| Dosage Forms Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Dexedrine, ProCentra, Xelstrym, Zenzedi | Adipex-P, Atti-Plex P, Lomaira | ||||||||||||||||
| 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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34 hours |
20 hours |
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| CSA Schedule ** View glossary of terms | |||||||||||||||||
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High potential for abuse
Has a high potential for abuse. Has a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions. Abuse may lead to severe psychological or physical dependence. |
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 C
Risk cannot be ruled out
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 211 drugs are known to interact with Dextroamphetamine:
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A total of 196 drugs are known to interact with Phentermine:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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May 29, 1975 |
August 14, 1973 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
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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.