Comparing Benzonatate vs Promethazine DM
| Benzonatate | Promethazine DM (dextromethorphan / promethazine) |
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| Benzonatate | Promethazine DM (dextromethorphan / promethazine) |
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Prescription only
Benzonatate relieves a dry cough; however, the capsules must be swallowed whole because the risk of a fatal overdosage is increased if the capsules are opened in any way. Prescribed for Cough... View more |
Prescription only
Prescribed for Cough, Allergic Rhinitis, Cold Symptoms. Promethazine DM may also be used for purposes not listed in this medication guide. |
Related suggestions Popular comparisons
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| More about Benzonatate | More about Promethazine DM (dextromethorphan / promethazine) | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Benzonatate has an average rating of 4.1 out of 10 from a total of 786 ratings on Drugs.com. 31% of reviewers reported a positive effect, while 61% reported a negative effect. |
Promethazine DM has an average rating of 5.7 out of 10 from a total of 43 ratings on Drugs.com. 44% of reviewers reported a positive effect, while 40% 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 Benzonatate side effects |
View all Promethazine DM side effects |
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| Drug Class | |||||||||||||||||
| Generic Availability | |||||||||||||||||
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Lower cost generic |
N/A |
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| Pricing and Coupons * Prices are without insurance | |||||||||||||||||
View all Benzonatate prices |
View all Promethazine DM prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Tessalon, Tessalon Perles |
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 |
16 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 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 1 drugs are known to interact with Benzonatate:
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A total of 752 drugs are known to interact with Promethazine DM:
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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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February 10, 1958 |
February 14, 2006 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
N/A |
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| More Information | |||||||||||||||||
| Patient Resources | |||||||||||||||||
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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.
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Promethazine DM
Promethazine DM is used for allergic rhinitis, cold symptoms, cough
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.