Comparing Ativan vs Klonopin
| Ativan | Klonopin |
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| Ativan lorazepam | Klonopin clonazepam |
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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 on discontinuation. Sedation is a common side... View more |
Klonopin may be used in the treatment of panic disorder and in certain types of seizure disorder. Sedation is the most common side effect and it can cause both physical and psychological dependence... View more |
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| More about Ativan (lorazepam) | More about Klonopin (clonazepam) | ||||||||||||||||
| Generic Status | |||||||||||||||||
| Availability | |||||||||||||||||
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Prescription only |
Prescription only |
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| Ratings & Reviews | |||||||||||||||||
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Ativan has an average rating of 8.0 out of 10 from a total of 441 ratings on Drugs.com. 74% of reviewers reported a positive effect, while 12% reported a negative effect. |
Klonopin has an average rating of 8.5 out of 10 from a total of 292 ratings on Drugs.com. 83% of reviewers reported a positive effect, while 10% reported a negative effect. |
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| Drug Class | |||||||||||||||||
| Side Effects | |||||||||||||||||
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Common side effects include: sedated state. See the full Ativan side effects document. |
Common side effects include: drowsiness. See the full Klonopin side effects document. |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Ativan prices and generic prices |
View all Klonopin prices and generic prices |
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| Dosage Form(s) Available | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Other lorazepam brands include: Ativan Injection, Lorazepam Intensol, Loreev XR |
N/A |
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| 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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25 hours |
40 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. |
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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 389 drugs are known to interact with Ativan:
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A total of 488 drugs are known to interact with Klonopin:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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September 30, 1977 |
June 04, 1975 |
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| WADA Class View World Anti-Doping Agency classifications. | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient resources | |||||||||||||||||
| Professional Resources | |||||||||||||||||
| 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.