Comparing Lorazepam vs Morphine
| Lorazepam | Morphine |
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| Lorazepam | Morphine |
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Prescription only
Lorazepam 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
Morphine is a very effective pain reliever but commonly causes constipation and carries a high risk of addiction and dependence. It interacts with several other medications, which can increase the... View more |
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| More about Lorazepam | More about Morphine | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Lorazepam has an average rating of 7.9 out of 10 from a total of 1059 ratings on Drugs.com. 74% of reviewers reported a positive effect, while 13% reported a negative effect. |
Morphine has an average rating of 7.5 out of 10 from a total of 366 ratings on Drugs.com. 66% of reviewers reported a positive effect, while 14% 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 Lorazepam side effects |
View all Morphine side effects |
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| Drug Class | |||||||||||||||||
| 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 Lorazepam prices |
View all Morphine prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Ativan, Ativan Injection, Lorazepam Intensol, Loreev XR | Astramorph PF, Doloral, Doloral Sirop, Duramorph, Duramorph PF, Infumorph, Kadian, M O S, Mitigo, Morphine Sulfate ER, Morphine Sulfate IR, Morphine Sulfate SR, MS Contin View more | ||||||||||||||||
| 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 |
4 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. |
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. |
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| Pregnancy Category | |||||||||||||||||
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Category D
Positive evidence of risk
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 406 drugs are known to interact with Lorazepam:
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A total of 565 drugs are known to interact with Morphine:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
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| First Approval Date | |||||||||||||||||
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September 30, 1977 |
May 29, 1987 |
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| WADA Class View classifications | |||||||||||||||||
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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.
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Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.