Comparing Amitiza vs Relistor
| Amitiza (lubiprostone) | Relistor (methylnaltrexone) |
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| Amitiza (lubiprostone) | Relistor (methylnaltrexone) |
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Prescription only
Prescribed for Irritable Bowel Syndrome with Constipation, Chronic Idiopathic Constipation, Opioid-Induced Constipation, Irritable Bowel Syndrome. Amitiza may also be used for purposes not listed in... View more |
Prescription only
Prescribed for Opioid-Induced Constipation, Constipation - Chronic, Constipation - Drug Induced. Relistor may also be used for purposes not listed in this medication guide. |
Related suggestions Opioid-Induced Constipation
Popular comparisons
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| More about Amitiza (lubiprostone) | More about Relistor (methylnaltrexone) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Amitiza has an average rating of 5.6 out of 10 from a total of 270 ratings on Drugs.com. 42% of reviewers reported a positive effect, while 39% reported a negative effect. |
Relistor has an average rating of 6.6 out of 10 from a total of 61 ratings on Drugs.com. 59% of reviewers reported a positive effect, while 31% 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 Amitiza side effects |
View all Relistor side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Amitiza prices |
View all Relistor prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
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N/A |
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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N/A |
8 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 B
No proven risk in humans
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||||||||||
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A total of 1 drugs are known to interact with Amitiza:
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A total of 24 drugs are known to interact with Relistor:
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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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January 31, 2006 |
April 24, 2008 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
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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.