Comparing Naltrexone vs Narcan
| Naltrexone | Narcan (naloxone) |
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| Naltrexone | Narcan (naloxone) |
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Prescription only
Naltrexone is used as an adjunct to social and psychotherapy in the treatment of opioid and alcohol addiction. People taking naltrexone need to have completely stopped taking all types of opioids... View more |
Over-the-counter
Prescribed for Opioid Overdose. Narcan may also be used for purposes not listed in this medication guide. |
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| More about Naltrexone | More about Narcan (naloxone) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Naltrexone has an average rating of 7.9 out of 10 from a total of 600 ratings on Drugs.com. 73% of reviewers reported a positive effect, while 16% reported a negative effect. |
Narcan has an average rating of 8.2 out of 10 from a total of 5 ratings on Drugs.com. 80% of reviewers reported a positive effect, while 20% 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 Naltrexone side effects |
View all Narcan side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
Lower cost generic approved | ||||||||||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Naltrexone prices |
View all Narcan prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Vivitrol | Other naloxone brands include: Kloxxado, Rextovy, Rezenopy, RiVive, Zimhi | ||||||||||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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10 hours |
3 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. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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| Pregnancy Category | |||||||||||||||||
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Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
Category C
Risk cannot be ruled out
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 352 drugs are known to interact with Naltrexone:
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A total of 30 drugs are known to interact with Narcan:
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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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November 20, 1984 |
N/A |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| 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.