DIPHENHYDRAMINE HCl 25 mg. Non-habit forming; Not for treating cold or flu; SOFTGELS. Failure to follow these warnings could result in serious consequences †This product is not manufactured or distributed by The Procter & Gamble Company. ZZZQUIL® is a registered trademark of The Procter & Gamble Company . It's known as a drowsy (sedating) antihistamine and is more likely to make you feel sleepy than other antihistamines. It's used for: short-term sleep problems , including when a cough, cold or itching is keeping you awake at night; cough and cold symptom DIPHENHYDRAMINE HYDROCHLORIDE (dye-fen-hye'dra-meen) Allerdryl , Banophen, In common with other antihistamines, diphenhydramine should be discontinued 4 d prior to skin testing procedures for allergy because it may obscure otherwise positive reactions. Interaction Diphenhydramine | C17H21NO | CID 3100 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more
Uses-. Temporarily relieves these symptoms due to hay fever or other upper respiratory allergies and common cold- sneezing - runny nose - itchy, watery eyes - itchy throat and nose. When using this product: alcohol, sedatives, and tranquilizers may increase drowsiness Diphenhydramine Hydrochloride is used for Common cold, Runny nose caused by hay fever, Red, Irritated, Itchy or watery eyes, Allergies, Airway irritation, Motion sickness, Insomnia and other conditions. This salt may also be used for purposes not listed in this medication guide. Detailed information related to Diphenhydramine Hydrochloride's. Diphenhydramine hydrochloride (DPH) is an antihistaminic agent that relieves symptoms of hypersensitive reactions. It exhibits antimuscarinic and marked sedative effects. DPH is also used to prevent nausea, vomiting and vertigo of various causes Name Diphenhydramine hydrochloride Drug Entry Diphenhydramine. Diphenhydramine - perhaps known most commonly as its brand name formulation Benadryl - is a first-generation H1 receptor antihistamine that is used extensively for the treatment of seasonal allergies, insect bites and stings, and rashes 9,10,11,17.However, it also has antiemetic, antitussive, hypnotic, and antiparkinson properties.
Diphenhydramine Hcl 50mg Softgels - 96 Liquid-Filled Capsules £ 19.95 £ 14.95; Diphenhydramine HCl 25 mg, (600 Mini-tabs). - Kirkland £ 24.95 £ 17.34; Benadryl Allergy (144 ULTRATAB TABLETS, 25mg per tablet) £ 29.95 £ 23.9 constipation. increased sensitivity of the skin to the sun. itching. hives. sensation of spinning or whirling. difficulty sleeping. low energy. excessive sweating. chills Diphenhydramine Hydrochloride. CAS Number. 147-24-. LGM Pharma is an API distributor. LGM Pharma can supply CGMP and/or DMF products, subject to availability and manufacturer requirements. LGM Pharma does not sell or supply APIs or finished dosage products to individual patients, doctors, pharmacies, or any pharmaceutical companies
Diphenhydramine hydrochloride is applied topically, usually in preparations containing 1 to 2% although, as with other antihistamines, there is a risk of sensitisation. Diphenhydramine citrate is given orally in a dose of 76 mg at night in combination preparations for its hypnotic action Name Diphenhydramine hydrochloride Drug Entry Diphenhydramine. Diphenhydramine - perhaps known most commonly as its brand name formulation Benadryl - is a first-generation H1 receptor antihistamine that is used extensively for the treatment of seasonal allergies, insect bites and stings, and rashes 9,10,11,17.However, it also has antiemetic, antitussive, hypnotic, and antiparkinson properties. دايفنهيدرامين (بالإنجليزية: Diphenhydramine) هو دواء مضاد للهيستامين المسبب لأعراض الحساسية مثل العطس وسيلان الأنف والحكة والعيون الدامعة، ويقوم دواء دايفنهيدرامين بتثبيط ارتباط الهستامين بمستقبلات H1 مما يقلل الأعراض DRUG NAME Generic Name : diphenhydramine hydrochloride Brand Name: Oral: Allerdryl (CAN), AllerMax Caplets, Banophen, Banophen Allergy, Benadryl Allergy, Diphen AF, Diphenhist, Diphenhist Captabs, Genahist, Siladryl, Silphen Cough Oral prescription preparations: Benadryl, Tusstat Parenteral preparations: Benadryl Classification: Antihistamine, Anti-motion sickness drug, Sedative-hypnotic.
My first experience with OTC drug overdoses was with Diphenhydramine Hydrochloride. I am a 120lb 14yr old male, and the amount I took for my first trip was 425mg. It was so weird. It felt like I weighed 300 lbs, I had several convulsions, I had severe drowsiness, I constantly stumbled over words, my speech was slurred, I stopped mid-sentence. However, diphenhydramine is a banned substance in Zambia. Patients should check the ingredients instead of relying on the brand name. Caution should be exercised for long-term use of Benadryl (diphenhydramine), an antihistamine and a non-benzodiazepine sedative-hypnotic, because of the association of increased risk for dementia Diphenhydramine hcl is an anti-histamine that reduces the effects of natural chemical histamine in the body. Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Diphenhydramine is used to treat sneezing, runny nose, watery eyes, hives, skin rash, itching, and other cold or allergy symptoms Generic name: Diphenhydramine Common brand name: Benadryl. Child's weight in Pounds Abbreviated = lbs 20-24 lbs 25-37 lbs 38-49 lbs 50-99 lbs 100+ lbs Child's weight in Kilograms Abbreviated = kgs 9-11 kgs 12-16 kgs 17-22 kgs 23-45 kgs 46+ kgs Liquid 12.5 mg/5 ml . 4 ml use oral syringe 5 ml use dosing cup 7.5 ml use dosing cup 10 m
Drug: Diphenhydramine hydrochloride After a ten-hour fast and a one-hour fluid restriction prior to each dosing period, subjects received supervised dosing of their first 25 mg treatment with approximately eight ounces of water Publication Name: Bulletin of Environmental Contamination and Toxicology. Publication Date: 2012. PMID: 22956058. 3 of 1,525. Enhancement of iontophoretic transport of diphenhydramine hydrochloride thermosensitive gel by optimization of pH, polymer concentration, electrode design, and pulse rate. Publication Name: AAPS PharmSciTech
The retention time of diphenhydramine hydrochloride, haloperidol, and lorazepam was found to be 5.2 minutes, 7.8 minutes, and 18.9 minutes, respectively. The ABH gel was found to be stable for up to 30 days. Theoretical steady state plasma concentrations (CSS) of diphenhydramine hydrochloride, haloperidol, and lorazepam calculated from flux. benadryl preservative free coltex benylin benadryl hydramine tixylix catarrh alledryl dibenil antitussive nytol one-a-night paxidorm dimedrol dytuss gppe cough expect paed sleepia diphenhydramine hydrochloride preservative free nytol histergan diphenhydramine hcl dreemon gppe oral soln fedril nsc-33299 belix diphen caladryl beldin vicks formula 4
Visit listing of diphenhydramine hcl (cas no 147-24-0) manufacturers, diphenhydramine hydrochloride suppliers, exporters - Get contact details of companies dealing in superior quality of diphenhydramine hcl as per your purchase requirement Diphenhydramine hydrochloride (trade name Benadryl as produced by Johnson & Johnson, or Dimedrol outside the U.S. & Canada. Nytol as a sleeping pill) is an over-the-counter (OTC) antihistamine, sedative and hypnotic. It may also be used for the treatment of extrapyramidal side effects of typical antipsychotics diphenhydramine hydrochloride: injectable;injection: 50mg/ml: prescription: no: no: ap: 2018/08/22 micro labs : 更多信息. 药品ndc数据与药品包装、标签说明书. 参考引用1. Find here Diphenhydramine Hydrochloride, N-(2-Diphenylmethoxyethyl)-Nn-Dimethylamine Hydrochloride manufacturers, suppliers & exporters in India. Get contact details & address of companies manufacturing and supplying Diphenhydramine Hydrochloride, N-(2-Diphenylmethoxyethyl)-Nn-Dimethylamine Hydrochloride across India
View detailed reports from patients taking Diphenhydramine Hydrochloride who experienced chest pain. Reports are from official medical reports as well as online extractions from user reviews and forum discussions comprimés et capsules de chlorhydrate de diphénhydramine. Each Advil Nighttime Liqui-Gel contains 200 mg of ibuprofen and 25 mg of diphenhydramine hydrochloride. The ibuprofen relieves pain and the diphenhydramine helps you get a better night's sleep. The combination of these ingredients reduces your pain and increases the duration of your sleep
Preparing Stock Solutions for Diphenhydramine hydrochloride. The following data is based on the product molecular weight 291.82.Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions We are offering diphenhydramine hydrochloride. Diphenhydramine is used to relieve red, irritated, itchy, watery eyes; sneezing; and runny nose caused by hay fever, allergies, or the common cold. diphenhydramine is also used to relieve cough caused by minor throat or airway irritation. diphenhydramine is also used to prevent and treat motio Diphenhydramine hydrochloride [USP:BAN:JAN] View Synonyms View Structure: Description: A histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. It has some undesired antimuscarinic and sedative. Diphenhydramine hydrochloride is an antihistamine. Its main action is to block receptors for histamine, which is involved in inflammation and allergic reactions, but it also leads to drowsiness which helps to improve sleep. Diphenhydramine hydrochloride is found in medicines used to treat allergies, cough and sleep problems diphenhydramine hydrochloride: ChEBI ID CHEBI:4637: Definition The hydrochloride salt of diphenhydramine. Stars This entity has been manually annotated by the ChEBI Team. Supplier Information Download Molfile XML SDF: Find compounds which contain this structure.
The Diphenhydramine Hydrochloride Capsules Revision Bulletin supersedes the currently official Diphenhydramine Hydrochloride Capsules monograph. The Revision Bulletin will be incorporated in USP 40-NF 35. Should you have any questions, please contact Clydewyn M. Anthony, Ph.D (301-816- 8139 or . email@example.com. La diphénhydramine est un antihistaminique H1 de première génération. C'est un antagoniste compétitif des récepteurs de l'histamine. L'histamine étant un neurotransmetteur responsable en partie de l'éveil, son blocage provoque une légère sédation. Elle potentialise l'effet sédatif des opiacés et de l'alcool Diphenhydramine hydrochloride (CAS No.: 147-24-0) Manus Aktteva Biopharma LLP is an ISO 9001:2015 Certified Global Supplier based in India for the product Diphenhydramine hydrochloride, 147-24-. We offer the product Diphenhydramine hydrochloride, 147-24- from our manufacturer / supplier / principals for your Research and Development.
Diphenhydramine (hydrochloride) - Investigated as a drug, mutagen, reproductive effector, and tumorigen. Only select Registry of Toxic Effects of Chemical Substances (RTECS) data is presented here. See actual entry in RTECS for complete information. Diphenhydramine (hydrochloride) RTECS Number: KR700000 The Related Drug Information Index provides comprehensive access to all drug information related to a specific drug Types of content include full prescribing information, drug summaries, Full Prescribing Information Continuing Medication Education (Full PI CME), Medication Guides, Risk Evaluation and Mitigation Strategies (REMS Summaries), REMS Continuing Medication Education (REMS CME), and. Diphenhydramine Hydrochloride Injection is a solution containing diphenhydramine hydrochloride, an antihistamine used for relief of symptoms associated with allergies or colds; it is also used for the treatment of symptoms associated with motion sickness Diphenhydramine hydrochloride (herein referred to as diphenhydramine) is an antihistamine of the ethanolamine classes with known sleep-inducing properties and is approved by the Food & Drug Administration to reduce the time to sleep onset in individuals having difficulty falling asleep. The goal of the study is to investigate diphenhydramine.
P/118/2008: European Medicines Agency decision of 1 December 2008 on the application for product specific waiver ibuprofen, diphenhydramine hydrochloride (EMEA-000220-PIP01-08) in accordance with Regulation (EC) No 1901/..
The meaning of DIPHENHYDRAMINE is an antihistamine C17H21NO used especially in the form of its hydrochloride diphenhydramine hydrochloride, paracetamol, pseudoephedrine hydrochloride McNeil Products Ltd. SmPC; Patient Leaflet; Benylin Dry Coughs (Original) dextromethorphan hydrobromide, diphenhydramine hydrochloride, levomenthol McNeil Products Ltd Amazon's Choice for diphenhydramine hydrochloride Benadryl Allergy Relief Capsules - Fast-Acting Antihistamine Capsules - Starts to Work in 15 Minutes - 24 Capsules. 4.6 out of 5 stars 3,668 , Diphenhydramine hydrochloride is a topical analgesic and zinc acetate is a skin protectorant, both of which are in the OTC monograph and can be sold as creams in a combination
Diphenhydramine is a type of medicine called an antihistamine. It is used in some allergy and sleep medicines. Overdose occurs when someone takes more than the normal or recommended amount of this medicine. This can be by accident or on purpose. This article is for information only. DO NOT use it to treat or manage an actual overdose DIPHENHYDRAMINE HCL Monographs Diphenhydramine is an oral, topical, and parenteral first-generation, sedating antihistamine (H1-blocker) of the ethanolamine class. Ethanolamine class antihistamines have significant antimuscarinic activity and produce marked sedation in most patients Diphenhydramine hydrochloride is an antihistamine. Antihistamines are used for many reasons, such as for treating and preventing allergic reactions (including anaphylaxis), motion sickness, and some movement disorders. Diphenhydramine hydrochloride works by blocking histamine in the body Target: Histamine H1 receptor; Diphenhydramine HCl (Benadryl), a histamine H1 antagonist used as an antiemetic, antitussive, for dermatoses and pruritus, for hypersensitivity reactions, as a hypnotic, an antiparkinson, and as an ingredient in common cold preparations. MedChem Express HY-B0303A
Source: diphenhydramine HCl Oral : User Rating... View full report on drug related heart rate increased Did the author experience heart rate increased while taking diphenhydramine hydrochloride Diphenhydramine hydrochloride is an antihistamine with anti-cholinergic (drying) and sedative side effects. Antihistamines appear to compete with histamine for cell receptor sites on effector cells. Diphenhydramine hydrochloride in the injectable form has a rapid onset of action. Diphenhydramine hydrochloride is widel CALADRYL Calamine 8g Diphenhydramine Hydrochloride 1g Lotion 30mL. Caladryl reduces the swelling, itching, and redness that can occur in these types of conditions. Benefits: This soothing pink lotion can help relieve the following skin conditions: insect bites chickenpox shingles swimmer?s itch scabies chigger bites minor burn
Diphenhydramine hydrochloride is an antihistamine drug having the chemical name 2- (diphenylmethoxy)-N,N -dimethylethylamine hydrochloride and has the molecular formula C 17 H 21 NO-HCL (molecular weight 291.82). It occurs as a white odorless, crystalline powder and is freely soluble in water and alcohol Diphenhydramine Hydrochloride Injection is a sterile, nonpyrogenic solution for intravenous or deep intramuscular use as an antihistaminic agent. Each mL contains diphenhydramine hydrochloride 50 mg and benzethonium chloride 100 mcg in Water for Injection. pH 4.0-6.5; sodium hydroxide and/or hydrochloric acid added, if needed, for pH adjustment
Diphenhydramine hydrochloride (herein referred to as diphenhydramine) is an antihistamine of the ethanolamine classes with known sleep-inducing properties and is approved by the Food & Drug Administration to reduce the time to sleep onset in individuals having difficulty falling asleep Benadryl may cause serious side effects including: pounding heartbeats or fluttering in your chest, painful or difficult urination, little or no urination, confusion, lightheadedness, tightness in your neck or jaw, and. uncontrollable movements of your tongue. Get medical help right away, if you have any of the symptoms listed above دي فين هيدرامين ( بالإنجليزية: Diphenhydramine ) و هو من الجيل الأول من مضادات الهيستامين التي تملك مضادات الكولين، مضاد للسعال، مضاد للقئ، ومهدئ الخصائص التي تستخدم أساسا لعلاج الحساسية Diphenhydramine hydrochloride synonyms, Diphenhydramine hydrochloride pronunciation, Diphenhydramine hydrochloride translation, English dictionary definition of Diphenhydramine hydrochloride. n trademark an antihistamine drug used in sleeping tablets; diphenhydramine. Formula: C17H21NO Collins English Dictionary - Complete and Unabridged, 12th.. An ultrasensitive electrochemiluminescence sensor for detecting diphenhydramine hydrochloride based on l-cysteine-functionalized multiwalled carbon nanotubes/gold nanoparticles nanocomposites. Sens. Actuators, B 2015, 213, 5-11
Member's Mark Diphenhydramine HCl 25 Mg Allergy Medicine and Antihistamine Compare to Active Ingredient of Benadryl® Allergy Generic - 600 Tablets (Packaging may vary) 600 Count (Pack of 1) 4.8 out of 5 stars 1,14 Summary: We compare the side effects and drug effectiveness of Diphenhydramine hydrochloride and Hydroxyzine hydrochloride. The phase IV clinical study is created by eHealthMe based on reports (from sources including the FDA) of 212,114 people who take Diphenhydramine hydrochloride and Hydroxyzine hydrochloride, and is updated regularly Diphenhydramine Hydrochloride Tablets Dissolution <6.10> Perform the test with 1 tablet of Diphenhydramine Hydrochloride Tablets at 50 revolutions per minute according to the Paddle method, using 900 mL of water as the dissolution medium. Withdraw not less than 20 mL of the medium at the specified minute after starting the test
Preparing Stock Solutions for Diphenhydramine hydrochloride. The following data is based on the product molecular weight 291.82.Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions 147-24- - PCHPORCSPXIHLZ-UHFFFAOYSA-N - Diphenhydramine hydrochloride [USP:BAN:JAN] - Similar structures search, synonyms, formulas, resource links, and other chemical information Liquid. Formula. C17H21NO. Pioneer in the industry, we are engaged in presenting an impeccable range of Diphenhydramine Hydrochloride. This acetate has strong contract and eliminate all kinds of allergy symptoms. The effectiveness of the offered chemical is quite good as it kills bacterial and fungus growth happening on the dead skin
Drug-induced liver injury (DILI) is the most common cause of acute liver failure in the Unites States and accounts for 10% of acute hepatitis cases. We report the only known case of diphenhydramine-induced acute liver injury in the absence of concomitant medications. A 28-year-old man with history of 13/14-chromosomal translocation presented with fevers, vomiting, and jaundice Diphenhydramine hydrochloride 147-24- 205-687-2 5 Hydrogen chloride 7647-01- 231-595-7 ** Sodium hydroxide 1310-73-2 215-185-5 ** Ingredient CAS Number EU EINECS List % Water for injection 7732-18-5 231-791-2 * Additional Information: ** to adjust p The study is based on diphenhydramine hydrochloride and doxylamine succinate (the active ingredients of Diphenhydramine hydrochloride and Doxylamine succinate, respectively). Other drugs that have the same active ingredients (e.g. generic drugs or brand names) are also considered Q0163 is a valid 2022 HCPCS code for Diphenhydramine hydrochloride, 50 mg, oral, fda approved prescription anti-emetic, for use as a complete therapeutic substitute for an iv anti-emetic at time of chemotherapy treatment not to exceed a 48 hour dosage regimen or just Diphenhydramine hcl 50mg for short, used in Medical care . Diphenhydramine-d5 Hydrochloride (Phenyl-d5) Diphenhydramine-d6 Hydrochloride (2E)-3-(1,3-Dimethyl-1h-pyrazol-4-yl)acrylic acid; Diphenhydramine Citrate (1,1-Dioxidotetrahydro-3-thienyl)acetic acid; Alternate.
DiphenhydrAMINE Hydrochloride Injection, USP 50 mg/mL Antihistaminic ACTION Diphenhydramine is a potent antihistaminic agent which possesses antipruritic, anticholinergic (antispasmodic), antiemetic and sedative effects. INDICATIONS Parenteral administration of diphenhydramine is indicated for its antiallergic, antiemeti Diphenhydramine hydrochloride in the parenteral form is a sterile, pyrogen-free solution available in a concentration of 50 mg of diphenhydramine hydrochloride per mL. The solutions for parenteral use have been adjusted to a pH between 5.0 and 6.0 with either sodium hydroxide or hydrochloric acid and contains 0.1 mg/mL benzethonium chloride as.
U.S. Food and Drug Administration 10903 New Hampshire Avenue Silver Spring, MD 20993 1-888-INFO-FDA (1-888-463-6332) Contact FD USP Diphenhydramine Hydrochloride Method Mobile Phase: 50% Acetonitrile: 50% Water: 0.5% Triethylamine Prepare solution and adjust pH to 6.5 with glacial acetic acid Column: 4.6 x 250 mm, L10 (CN) Flow Rate: 1mL/min Detection: UV 254 nm System Suitability: Benzophenone and Diphenhydramine Solution Specifications: Rs > 2.0, Tf < 2.0 for. Difenhydramina (łac. Diphenhydraminum) - organiczny związek chemiczny, pochodna etanoloaminy, lek przeciwhistaminowy pierwszej generacji dostępny bez recepty. Wykazuje silne działanie ośrodkowe i cholinolityczne. Hamuje podrażnienie błędnika.Podawany jest profilaktycznie w celu zapobiegania kinetozom.. Działanie i użycie. Działa na ośrodkowy układ nerwowy, blokując działanie. * Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication.As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition View detailed Export data, price, monthly trends, major exporting countries, major ports of diphenhydramine hcl under HS Code 293
The medicinal ingredient in Benadryl, diphenhydramine hydrochloride, makes you drowsy and irritable and if you take too high a dose or an overdose, you will end up in hospital, Fischer said Diphenhydramin (kurz DPH, gelegentlich auch DHM) ist ein Arzneistoff aus der Klasse der H1-Antihistaminika.Er wirkt gleichzeitig stark anticholinerg und hemmt auch die Wiederaufnahme von Serotonin im Gehirn.. Diphenhydramin kam früher in der Therapie von Allergien zur Anwendung; heute wird es jedoch in Deutschland nur noch als Beruhigungsmittel sowie bei Übelkeit und Erbrechen eingesetzt Nanz Med Science Pharma (p) Ltd. - Offering Calamine And Diphenhydramine Hydrochloride Lotion, कैलेमाइन लोशन in Sirmaur, Himachal Pradesh. Get best price and read about company. Get contact details and address| ID: 1491282573
The appropriate quantities of aluminum hydroxide 3.15 GM / diphenhydramine hydrochloride 0.2 GM / lidocaine hydrochloride 1.6 GM / magnesium hydroxide 3.15 GM / simethicone 0.315 GM per 237 ML Mouthwash powder and lidocaine hydrochloride powder have been packaged in each bottle to deliver the required dosage of each drug DIPHENHYDRAMINE HYDROCHLORIDE. 147-24- Diphenhydramine HCl Dimedrol Carphenamine Molecular Weight 291.8 . Parent Compound CID 3100 (Diphenhydramine)- Introduction of product - It is a first generation H1-antihistamine and ethanolamine and works by blocking certain effects of histamine. Diphenhydramine is also an anticholinergic Diphenhydramine Hydrochloride Choline Bicarbonate Acetophenone. Jinan Rouse Industry Co., Ltd. was founded by Dr. Gao, who was educated from the famous Chemical University in China Diphenhydramine hydrochloride is an antihistamine with anticholinergic (drying) and sedative side effects. Antihistamines appear to compete with histamine for cell receptor sites on effector cells. Diphenhydramine hydrochloride in the injectable form has a rapid onset of action. Diphenhydramine hydrochloride is widely distributed throughout the. Diphenhydramine is an antihistamine used to relieve allergy symptoms, insect stings, motion sickness, travel anxiety and other conditions. It is available over-the-counter (OTC) as 25 mg tablets and 50 mg capsules. Diphenhydramine should not be used in dogs or cats that are pregnant or nursing
Pharmacy. Diphenhydramine is a first-generation antihistamine and cetirizine is a second-generation antihistamine. They are both used for the treatment of allergy symptoms. The difference between the two drugs is that a first-generation antihistamine is more likely to cause side effects like drowsiness and to interact with other medications DIPHENHYDRAMINE (dye fen HYE dra meen) is an antihistamine. It is used to treat the symptoms of an allergic reaction. It is also used to treat Parkinson's disease. This medicine is also used to prevent and to treat motion sickness and as a nighttime sleep aid Diphenhydramine is an antihistamine which can be obtained both via a prescription and over-the-counter ().Diphenhydramine can be used to treat allergic reactions, insomnia, cough, motion sickness and Parkinsonism. Diphenhydramine is available under the following different brand names: Benadryl, Benadryl Allergy Dye-Free LiquiGels, Children's Benadryl Allergy, Children's Triaminic Thin Strips. Define diphenhydramine. diphenhydramine synonyms, diphenhydramine pronunciation, diphenhydramine translation, English dictionary definition of diphenhydramine. n. A sedating antihistamine drug, C17H21NO, used usually in the form of its hydrochloride to treat symptoms of colds and allergic conditions, motion.. Diphenhydramine hydrochloride is an antihistamine. Its main action is to block receptors for histamine, which is involved in inflammation and allergic reactions, but it also leads to drowsiness which helps to improve sleep. Diphenhydramine hydrochloride is found in medicines used to treat allergies, cough an