Comparing Diphenhydramine
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Diphenhydramine is an antihistamine that can be used to treat allergic reactions, relieve motion sickness, as a sleep aid, and to relieve some symptoms of Parkinson's disease. Sedation is a common... View more |
Choose a suggestion belowInsomnia
Nausea/Vomiting
Allergic Reactions
Allergic Rhinitis
Cough
Pruritus
Cold Symptoms
Eustachian Tube Dysfunction
Extrapyramidal Reaction
Motion Sickness
Urticaria
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Prescription and OTC |
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Ratings & ReviewsRecent helpful reviews |
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6.9
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Drug Class |
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Side Effects |
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See the full diphenhydramine side effects document. |
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Pricing and Coupons* Prices are without insurance |
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View all diphenhydramine prices |
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Generic Availability |
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Yes (this medicine) |
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Dosage Form(s) Available |
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Brand Names |
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| Aler-Dryl, Aler-Tab, Aller-G-Time, Allergia-C, Allermax, Altaryl, 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, DPH, Dytan, Dytuss, Genahist, Help I Can't Sleep, Histaprin, Hydramine, Hydramine Compound, Hydramine Cough Syrup, Hyrexin, Miles Nervine, Nervine, Nightime Sleepaid, Nu-Med, Nytol, Nytol Caplet, Nytol QuickCaps, Pardryl, PediaCare Children's Allergy, Pharbedryl, Q-Dryl, Q-Dryl A/F, Quenalin, Scot-Tussin Allergy, Siladryl, Siladryl Allergy, Siladryl DAS, Siladyl SA, Silphen Cough, Simply Sleep, Sleep, Sleep Tab II, Sleep Tabs, Sleep-ettes, Sleep-ettes D, Sleep-Eze-3, Sleepinal, Sleepwell 2-nite, Snooze Fast, Sominex, Sominex Maximum Strength Caplet, Somnicaps, Total Allergy, Tranquil Nighttime Sleep Aid, Trux-adryl, Truxadryl, Tusstat, Twilite, Uni-Tann, Unisom Liquid, Unisom SleepGels, Unisom SleepMelts, Unisom SleepMinis, Valu-Dryl, Vanamine PD, Vicks QlearQuil Nighttime Allergy Relief, Z-Sleep, ZzzQuil View more | ||||||||
Half LifeThe half-life of a drug is the time taken for the plasma concentration of a drug to reduce to half its original value. |
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9.3 hours |
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CSA Schedule**View glossary of terms. |
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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. |
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FDA Alerts |
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N/A |
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Drug Interactions |
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A total of 827 drugs are known to interact with diphenhydramine:
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Alcohol/Food/Lifestyle Interactions |
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Disease Interactions |
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First Approval Date |
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March 04, 1946 |
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WADA ClassView World Anti-Doping Agency classifications. |
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N/A |
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More Information |
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Consumer Resources |
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Professional Resources |
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Related Treatment Guide |
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** 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.
For Insomnia: Works quite well on insomnia but careful when combining with other meds that also work on your sympathetic/parasympathetic nervous system. I took it with lexapro and got significant problems with too low heart rate, respiratory issues and hypnic jerks.