Comparing Ativan vs Klonopin
| Ativan (lorazepam) | Klonopin (clonazepam) |
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| Ativan (lorazepam) | Klonopin (clonazepam) |
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Prescription only
Ativan may be used for the treatment of anxiety or as a preoperative medicine. It is potentially addictive and a withdrawal syndrome may be experienced upon discontinuation. Sedation is a common... View more |
Prescription only
Klonopin may be used in the treatment of panic disorder and certain types of seizure disorder. Sedation is the most common side effect and it can cause both physical and psychological dependence... View more |
Related suggestions Panic Disorder
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| More about Ativan (lorazepam) | More about Klonopin (clonazepam) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Ativan has an average rating of 8.0 out of 10 from a total of 479 ratings on Drugs.com. 74% of reviewers reported a positive effect, while 13% reported a negative effect. |
Klonopin has an average rating of 8.5 out of 10 from a total of 756 ratings on Drugs.com. 83% of reviewers reported a positive effect, while 10% 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 Ativan side effects |
View all Klonopin side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Ativan prices |
View all Klonopin prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other lorazepam brands include: Ativan Injection, Lorazepam Intensol, Loreev XR |
N/A |
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| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||||||||||
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25 hours |
40 hours |
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| CSA Schedule 1 View glossary of CSA 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. |
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| Pregnancy Category | |||||||||||||||||
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Category D
Positive evidence of risk
See the full pregnancy warnings document. |
Category D
Positive evidence of risk
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 406 drugs are known to interact with Ativan:
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A total of 531 drugs are known to interact with Klonopin:
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| First Approval Date | |||||||||||||||||
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September 30, 1977 |
June 04, 1975 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| 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.