Comparing Concerta vs Phentermine
| Concerta (methylphenidate) | Phentermine |
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| Concerta (methylphenidate) | Phentermine |
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Prescription only
Concerta is an extended-release tablet containing methylphenidate that can improve symptoms of ADHD. Dependence can occur with regular use of Concerta and tolerance may also develop to its effect... View more |
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 Concerta (methylphenidate) | More about Phentermine | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Concerta has an average rating of 6.9 out of 10 from a total of 424 ratings on Drugs.com. 56% of reviewers reported a positive effect, while 18% reported a negative effect. |
Phentermine has an average rating of 8.6 out of 10 from a total of 3014 ratings on Drugs.com. 82% of reviewers reported a positive effect, while 5% 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 Concerta side effects |
View all Phentermine side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Concerta prices |
View all Phentermine prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other methylphenidate brands include: Aptensio XR, Cotempla XR-ODT, Daytrana, Jornay PM, Metadate CD, Methylin, Methylin ER, QuilliChew ER, Quillivant XR, Relexxii, Ritalin, Ritalin LA View more | Adipex-P, Atti-Plex P, Lomaira | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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4 hours |
20 hours |
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| CSA Schedule 1 View glossary of CSA 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 207 drugs are known to interact with Concerta:
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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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August 01, 2000 |
August 14, 1973 |
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| WADA Class View classifications | |||||||||||||||||
| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| 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.
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.