Comparing DPH vs Trihexyphenidyl
| DPH (diphenhydramine) | Trihexyphenidyl |
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| DPH (diphenhydramine) | Trihexyphenidyl |
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Prescription and OTC
Prescribed for Allergic Reactions, Allergic Rhinitis, Cold Symptoms, Cough, Pruritus, Extrapyramidal Reaction, Motion Sickness, Nausea/Vomiting, Urticaria. DPH may also be used for purposes not... View more |
Prescription only
Prescribed for Parkinson's Disease, Cerebral Spasticity, Extrapyramidal Reaction. Trihexyphenidyl may also be used for purposes not listed in this medication guide. |
Related suggestions Extrapyramidal Reaction
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| More about (diphenhydramine) | More about Trihexyphenidyl | ||||||||
| Ratings & Reviews | |||||||||
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Be the first to share your experience with this drug. |
Trihexyphenidyl has an average rating of 6.5 out of 10 from a total of 24 ratings on Drugs.com. 46% of reviewers reported a positive effect, while 25% 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. | |||||||||
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View all DPH side effects |
View all Trihexyphenidyl side effects |
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| Drug Class | |||||||||
| Generic Availability | |||||||||
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N/A |
Lower cost generic |
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| Pricing and Coupons * Prices are without insurance | |||||||||
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We could not find an exact match for this medicine. Try searching the Price Guide directly. |
View all Trihexyphenidyl prices |
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| Dosage Forms | |||||||||
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N/A |
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| Brand Names | |||||||||
| Other diphenhydramine brands include: Aler-Dryl, Aler-Tab, Aller-G-Time, Allergia-C, Allermax, Altaryl, Aurodryl Children's Allergy, Banaril, Banophen, Beldin, Belix, Ben-Tann, Benadryl, Benadryl Allergy, Benadryl Children's Allergy, Benahist-10, Benahist-50, Benoject-50, Buckley's Bedtime, Bydramine, Calm-Aid, Complete Allergy Relief, Compoz Nighttime Sleep Aid, ConRx Allergy, Dicopanol, Diphedryl, Diphen, Diphen AF, Diphen Cough, Diphenadryl, Diphendryl, Diphenhist, Diphenmax, Diphenydramine Quick Melt, Diphenyl, Diphenylin, Dormin, Dytan, Dytuss, Genahist, Help I Can't Sleep, Histaprin, Hydramine, Hydramine Compound, Hydramine Cough Syrup, Hyrexin, Miles Nervine, Nytol, Nytol Caplet, Nytol QuickCaps, Pharbedryl, Scot-Tussin Allergy, Siladryl Allergy, Silphen Cough, Simply Sleep, Sleep Tab II, Sleep Tablets, Sleep-ettes D, Sleepinal, Sleepwell 2-nite, Snooze Fast, Sominex, Sominex Maximum Strength Caplet, Trux-adryl, Twilite, Unisom Liquid, Unisom SleepGels, Unisom SleepMelts, Unisom SleepMinis, Valu-Dryl, Vanamine PD, Vicks QlearQuil Nighttime Allergy Relief, Z-Sleep, ZzzQuil View more | Trihexy | ||||||||
| Half Life Drug half-life is the time required for plasma concentration to reduce to half its original value. | |||||||||
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9.3 hours |
4.1 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 N
Not classified
See the full pregnancy warnings document. |
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| Drug Interactions | |||||||||
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A total of 449 drugs are known to interact with DPH:
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A total of 337 drugs are known to interact with Trihexyphenidyl:
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| Alcohol/Food/Lifestyle Interactions | |||||||||
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| Disease Interactions | |||||||||
| First Approval Date | |||||||||
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N/A |
May 13, 1949 |
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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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N/A |
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| Professional Resources | |||||||||
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N/A |
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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.
See also:
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.