Comparing Dimenhydrinate vs Promethazine
| Dimenhydrinate | Promethazine |
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| Dimenhydrinate | Promethazine |
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Prescription and OTC
Prescribed for Insomnia, Motion Sickness, Meniere's Disease, Nausea/Vomiting. Dimenhydrinate may also be used for purposes not listed in this medication guide. |
Prescription only
Promethazine may be used to relieve allergy symptoms and nausea. Sedation is the main side effect and it may interact with several other drugs including antidepressants, antipsychotics, and other... View more |
Related suggestions Nausea/Vomiting
Motion Sickness
Meniere's Disease
Popular comparisons
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| More about Dimenhydrinate | More about Promethazine | ||||||||||||||||
| Ratings & Reviews | |||||||||||||||||
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Dimenhydrinate has an average rating of 8.9 out of 10 from a total of 80 ratings on Drugs.com. 88% of reviewers reported a positive effect, while 6% reported a negative effect. |
Promethazine has an average rating of 7.2 out of 10 from a total of 389 ratings on Drugs.com. 65% of reviewers reported a positive effect, while 21% 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 Dimenhydrinate side effects |
View all Promethazine 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 Dimenhydrinate prices |
View all Promethazine prices |
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| Dosage Forms | |||||||||||||||||
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| Brand Names | |||||||||||||||||
| Calm-X, Dimetabs, Dinate, DMH, Dramamine, Dramamine Chewable, Dramamine for Kids, Dramamine Original Formula, Dramanate, Dramoject, Driminate, Dymenate, Hydrate, Travel-Eze, Triptone View more | Adgan, Anergan 50, Antinaus 50, Phenadoz, Promethegan | ||||||||||||||||
| 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 B
No proven risk in humans
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 385 drugs are known to interact with Dimenhydrinate:
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A total of 689 drugs are known to interact with Promethazine:
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| Alcohol/Food/Lifestyle Interactions | |||||||||||||||||
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| Disease Interactions | |||||||||||||||||
| First Approval Date | |||||||||||||||||
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December 19, 1977 |
March 29, 1951 |
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| WADA Class View classifications | |||||||||||||||||
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N/A |
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.