Comparing Librium vs Phenergan
Librium | Phenergan |
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Librium (chlordiazepoxide) | Phenergan (promethazine) |
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Prescription only
Prescribed for Alcohol Withdrawal, Anxiety, Light Sedation. Librium may also be used for purposes not listed in this medication guide. |
Prescription only
Phenergan may be used to relieve allergy symptoms, nausea, or as a sleeping aid. Sedation is the main side effect. Occasionally, paradoxical reactions (the opposite of what is to be expected) may... View more |
Related suggestions Light Sedation
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More about Librium (chlordiazepoxide) | More about Phenergan (promethazine) | ||||||||
Ratings & Reviews | |||||||||
Librium has an average rating of 8.7 out of 10 from a total of 175 ratings on Drugs.com. 85% of reviewers reported a positive effect, while 8% reported a negative effect. |
Phenergan has an average rating of 7.3 out of 10 from a total of 147 ratings on Drugs.com. 68% of reviewers reported a positive effect, while 23% reported a negative effect. |
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Drug Class | |||||||||
Side Effects | |||||||||
See also: Librium side effects in more detail. |
See also: Phenergan side effects in more detail. |
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Generic Availability | |||||||||
N/A |
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Pricing and Coupons * Prices are without insurance | |||||||||
We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Phenergan prices |
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Dosage Form(s) Available | |||||||||
N/A |
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Brand Names | |||||||||
N/A |
Other promethazine brands include: Adgan, Anergan 50, Antinaus 50, Phenadoz, Promethegan | ||||||||
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. | |||||||||
25 hours |
16 hours |
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CSA Schedule ** View glossary of terms | |||||||||
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. |
Not a controlled drug
Is not subject to the Controlled Substances Act. |
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Pregnancy Category | |||||||||
Category N
Not classified
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 | |||||||||
A total of 440 drugs are known to interact with Librium:
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A total of 685 drugs are known to interact with Phenergan:
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Alcohol/Food/Lifestyle Interactions | |||||||||
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Disease Interactions | |||||||||
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First Approval Date | |||||||||
February 24, 1960 |
March 29, 1951 |
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WADA Class View World Anti-Doping Agency classifications. | |||||||||
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.