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Diphenhydramine

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https://www.readbyqxmd.com/read/27922194/pharmacodynamic-response-profiles-of-anxiolytic-and-sedative-drugs
#1
Xia Chen, Freerk Broeyer, Marieke de Kam, Joke Baas, Adam Cohen, Joop van Gerven
INTRODUCTION: Centrally-acting acutely anxiolytic drugs, like benzodiazepines, barbiturates and gabapentinoids, affect various central nervous system (CNS) functions, which reflect not only their anxiolytic effects but also neuropsychological side-effects. To validate the pharmacodynamic biomarkers for GABA-ergic anxiolytics, this study determined the pharmacodynamics of two anxiolytics and a non-anxiolytic control and linked them to their anxiolytic and sedative effects, during an anxiety-challenge study day...
December 6, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27920067/injectable-diphenhydramine-used-as-anaesthetic-for-wide-local-excision-with-flap-closure
#2
Laura E Pickett, Jillian Macdonald
BACKGROUND: Lidocaine-allergic patients pose a challenge for cutaneous surgical procedures. We present a case of a successful wide local excision with flap closures on the face using topical tetracaine followed by infiltration with 1% diphenhydramine. CASE SUMMARY: An 84-year-old woman, with a lidocaine intolerance, presented to the Mohs surgery clinic for wide local excision of a nodular basal cell carcinoma on her right medial cheek. Successful anaesthesia was achieved using topical 4% tetracaine followed by intradermal and subcutaneous injection of 1% diphenhydramine...
December 5, 2016: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/27916694/regenerated-cellulose-capsules-for-controlled-drug-delivery-part-iv-in-vitro-evaluation-of-novel-self-pore-forming-regenerated-cellulose-capsules
#3
Bhavik Bhatt, Vijay Kumar
In the present work, the release mechanisms of active pharmaceutical ingredients (APIs) enclosed in self-pore forming regenerated cellulose (RC) two-piece hard shell capsules are described. The RC capsules were fabricated using a modified dip-coating approach, which yielded an assembled dosage form that was equivalent in size and shape to a conventional gelatin two-piece hard shell capsule. Drug release characteristics from RC capsules were evaluated using potassium chloride, diphenhydramine hydrochloride, tramadol hydrochloride, niacinamide, acetaminophen and ketoprofen as model APIs...
December 1, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27886581/a-multi-omic-approach-to-elucidate-low-dose-effects-of-xenobiotics-in-zebrafish-danio-rerio-larvae
#4
Susie S Y Huang, Jonathan P Benskin, Nik Veldhoen, Bharat Chandramouli, Heather Butler, Caren C Helbing, John R Cosgrove
Regulatory-approved toxicity assays such as the OECD Fish Embryo Toxicity Assay (TG236) allow correlation of chemical exposure to adverse morphological phenotypes. However, these assays are ineffective in assessing sub-lethal (i.e. low-dose) effects, or differentiating between similar phenotypes induced by different chemicals. Inclusion of multi-omic analyses in studies investigating xenobiotic action provides improved characterization of biological response, thereby enhancing prediction of toxicological outcomes in whole animals in the absence of morphological effects...
November 18, 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27875053/pharmacological-reversal-agents-in-dental-practice-keys-to-patient-safety
#5
Mark Donaldson, Jason H Goodchild
Though uncommon, medical emergencies in the dental office are harrowing occurrences that can be the result of adverse drug reactions. Pharmacological antagonists have been developed for administration as reversal agents in emergency situations in which patients may have an untoward effect, typically caused by too much medication. Dental practitioners should be familiar with these agents to keep patients safe and help mitigate drug-induced medical emergencies. This article reviews the pharmacokinetic and pharmacodynamic principles of pharmacological antagonists; it emphasizes six specific reversal agents as they relate to the clinical practice of dentistry: naloxone, flumazenil, epinephrine, diphenhydramine, phentolamine, and atropine...
November 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27872516/proliferative-effects-of-histamine-on-primary-human-pterygium-fibroblasts
#6
Zhenwei Qin, Qiuli Fu, Lifang Zhang, Houfa Yin, Xiuming Jin, Qiaomei Tang, Danni Lyu, Ke Yao
Purpose. It has been confirmed that inflammatory cytokines are involved in the progression of pterygium. Histamine can enhance proliferation and migration of many cells. Therefore, we intend to investigate the proliferative and migratory effects of histamine on primary culture of human pterygium fibroblasts (HPFs). Methods. Pterygium and conjunctiva samples were obtained from surgery, and toluidine blue staining was used to identify mast cells. 3-[4, 5-Dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) was performed to evaluate the proliferative rate of HPFs and human conjunctival fibroblasts (HCFs); ki67 expression was also measured by immunofluorescence analysis...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27871585/optimal-epidural-analgesia-for-patients-diagnosed-as-having-gynecologic-cancer-undergoing-interstitial-brachytherapy
#7
Ashley K Amsbaugh, Mark J Amsbaugh, Moataz N El-Ghamry, Brian M Derhake
STUDY OBJECTIVE: To determine the optimal epidural analgesia for patients receiving interstitial brachytherapy (ISBT) for gynecologic cancers. DESIGN: Retrospective analysis. SETTING: Operating room and hospital ward. PATIENTS: Seventy-three patients diagnosed as having gynecologic cancer and undergoing ISBT. INTERVENTIONS: Twelve patients received ropivacaine alone, 14 patients received ropivacaine with fentanyl, and 45 patients received ropivacaine with hydromorphone by epidural infusion...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27866183/resolution-of-allergic-rhinitis-and-reactive-bronchospasm-with-supplements-and-food-specific-immunoglobulin-g-elimination-a-case-report
#8
Laura Kwiatkowski, Jessica Mitchell, Jeffrey Langland
Context • Allergies are a common affliction, whether they are respiratory, food related, or dermatological. People often resort to continuous use of over-the-counter medications, such as antihistamines, to manage their symptoms. Controversy still remains over testing serum immunoglobulin (Ig) G to diagnose food allergies. Objective • This study intended to examine the benefits of treatment of a pediatric patient with natural supplements and an elimination diet for IgG food allergies. Design • The research team reported a case study...
October 2016: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/27856924/prevention-of-carboplatin-induced-hypersensitivity-reactions-in-women-with-ovarian-cancer
#9
Katarzyna J Jerzak, Shaidah Deghan Manshadi, Pamela Ng, Manjula Maganti, Jeanna M McCuaig, Marcus Bulter, Amit Oza, Helen J Mackay
BACKGROUND: Carboplatin-based chemotherapy offers high response rates and improved overall survival for women with epithelial ovarian cancer, but its use is limited by the occurrence of hypersensitivity reactions. To evaluate the efficacy of prophylactic diphenhydramine for hypersensitivity reaction prevention, we reviewed the incidence of hypersensitivity reactions and identified patients at high risk of hypersensitivity reactions. METHODS: Women receiving ≥6 cycles of carboplatin-based chemotherapy for epithelial ovarian cancer were identified from our institutional database at the Princess Margaret Cancer Centre...
November 17, 2016: Journal of Oncology Pharmacy Practice
https://www.readbyqxmd.com/read/27852128/antagonistic-effects-of-gingko-biloba-and-sophora-japonica-on-cerebral-vasoconstriction-in-response-to-histamine-5-hydroxytryptamine-u46619-and-bradykinin
#10
Ha Thi Thanh Nguyen, Hai Thanh Nguyen, Md Zahorul Islam, Takeshi Obi, Pitchaya Pothinuch, Thanh Van Nguyen, Tuong Manh Nguyen, Cuong Van Dao, Mitsuya Shiraishi, Atsushi Miyamoto
The aim of this study was to evaluate, for the first time, the antagonistic effects of Gingko biloba leaf (GB) and Sophora japonica L. flower bud (SJ) extracts on cerebral vasoconstriction in response to KCl, extracellular Ca[Formula: see text], histamine, 5-hydroxytryptamine (5-HT), 9,11-dideoxy-9[Formula: see text],11[Formula: see text]-methanoepoxy prostaglandin (PG) F[Formula: see text](U46619) and bradykinin (BK), in order to explain their traditional application for diseases associated with cerebral vasospasm...
November 16, 2016: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/27851246/1611-severe-diphenhydramine-overdose-caused-rhabdomyolysis-and-takotsubo-featured-cardiomyopathy
#11
Xuan Wang, Sirish Dharmapuri, Ghelani Ghanshyam, Ramesh Pandit, Qi Shi
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27843463/the-comparison-between-effect-of-chloralhydrate-and-diphenhydramine-on-sedating-for-electroencephalography
#12
Afagh Hassanzadeh Rad, Vahid Aminzadeh
OBJECTIVE: Electroencephalography (EEG) is the most effective diagnostic tool in distinguishing epileptic seizure. Chloral hydrate (CH) is a sedative hypnotic drug, commonly used as a method of sedation in children aged<3 yr. Furthermore, diphenhydramine (DH) is a first generation antihistaminic drug (H1 receptor blocker) with anti-cholinergic effect. In this study, we aimed to compare the effects of CH and DH on sedating for EEG. MATERIALS & METHODS: This retrospective cohort study was conducted on patients' records of aged 15-72 months undergone an EEG and required sedation...
2016: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/27803472/effect-of-surfactants-and-thickeners-on-the-stability-of-menthol-diphenhydramine-cream-identified-by-magnetic-resonance-imaging
#13
Yoshinori Onuki, Masamitsu Yokokawa, Shunichi Utsumi, Yasuko Obata, Yoshiaki Machida, Chieko Seike, Yoshihiro Hayashi, Kozo Takayama
A menthol-diphenhydramine cream is prepared in hospital pharmacies and then prescribed to patients for the treatment of pruritus associated with chronic kidney disease. The purpose of this study is to design a stable formulation without any concern about phase separation during its clinical use on patients. As a preventive measure against phase separation, various surfactants and thickeners were incorporated into the creams. The test creams were stored at 40°C, and then their phase separation behaviors were monitored...
2016: Chemical & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27798077/a-fatality-related-to-the-synthetic-opioid-u-47700-postmortem-concentration-distribution
#14
Iain M McIntyre, Ray D Gary, Sandra Joseph, Robert Stabley
In this case report, we present an evaluation of the distribution of postmortem concentrations of 3,4-dichloro-N-[2-(dimethylamino)cyclohexyl]-N-methylbenzamide (U-47700) in a fatality attributed principally to the drug. A man who had a history of drug abuse was found unresponsive and not breathing on his bed. Drug paraphernalia, indicating drug insufflation, was located in the decedent's room. Toxicology screening tests in peripheral blood initially identified U-47700 using an alkaline drug screen with gas chromatography-mass spectrometry (GC-MS) following solid-phase extraction...
October 26, 2016: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/27779705/diphenhydramine-induces-melanoma-cell-apoptosis-by-suppressing-stat3-mcl-1-survival-signaling-and-retards-b16-f10-melanoma-growth-in-vivo
#15
Chi-Hung R Or, Hong-Lin Su, Wee-Chyan Lee, Shu-Yi Yang, Cheesang Ho, Chia-Che Chang
Melanoma is the most aggressive skin malignancy with a high rate of mortality and is frequently refractory to many therapeutics, thus demanding the discovery of novel effective anti-melanoma agents. Diphenhydramine (DPH) is an H1 histamine receptor antagonist and a relatively safe drug. Previous studies have revealed the in vitro cytotoxicity of DPH against melanoma cells, but the mechanisms involved concerning its cytotoxicity and the in vivo anti-melanoma effect remain unknown. We herein present the first evidence supporting that DPH is selectively proapoptotic for a panel of melanoma cell lines irrespective of BRAFV600E status while sparing normal melanocytes...
October 25, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27769972/physical-compatibility-of-tedizolid-phosphate-with-selected-i-v-drugs-during-simulated-y-site-administration
#16
Islam Ghazi, Yukihiro Hamada, David P Nicolau
PURPOSE: The physical compatibility of commonly used agents that could be coadministered in the clinical setting with tedizolid phosphate during Y-site administration was evaluated. METHODS: Tedizolid phosphate vials were reconstituted to a final concentration of 0.8 mg/mL. All other drugs were prepared according to manufacturers' recommendations and diluted with 0.9% sodium chloride injection (where applicable) to the highest standard concentrations used clinically...
November 1, 2016: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/27769614/allergic-reaction-to-ketamine-as-monotherapy-for-procedural-sedation
#17
Tammy T Nguyen, Bethany Baker, Jeffrey D Ferguson
BACKGROUND: Ketamine is a cyclohexamine derivative that acts as a noncompetitive N-methyl D-aspartate receptor antagonist. Its use for procedural sedation is recommended by national clinical policy. However, its immunogenic potential is not well documented. CASE REPORT: We report a case of allergic reaction associated with the administration of intravenous ketamine for procedural sedation in a 16-year-old male. Minutes after administration, the patient developed a morbilliform, erythematous rash that extended to the upper and lower torso and resolved with intravenous diphenhydramine...
October 18, 2016: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27751669/review-of-safety-and-efficacy-of-sleep-medicines-in-older-adults
#18
REVIEW
Jennifer L Schroeck, James Ford, Erin L Conway, Kari E Kurtzhalts, Megan E Gee, Krista A Vollmer, Kari A Mergenhagen
PURPOSE: Insomnia is problematic for older adults. After behavioral modifications fail to show adequate response, pharmacologic options are used. The pharmacokinetics of agents used to treat insomnia may be altered. This review focuses on the safety and efficacy of medications used to treat insomnia. METHODS: A literature search of Medline, PubMed, and Embase was conducted (January 1966-June 2016). It included systematic reviews, randomized controlled trials, observational studies, and case series that had an emphasis on insomnia in an older population...
November 2016: Clinical Therapeutics
https://www.readbyqxmd.com/read/27743843/limitations-of-the-anticholinergic-activity-assay-and-assay-based-anticholinergic-drug-scales
#19
Tanja Mayer, Jürgen Kopitz, Konstanze Plaschke, Johanna Weiss, Hanna M Seidling, Walter E Haefeli
OBJECTIVE: The anticholinergic activity (AA) assay is a common method to determine a patient's anticholinergic load. Several limitations, however, are expected when applying the AA assay to patients or using drug scales to estimate anticholinergic burden based on AA levels. This study aims to demonstrate common pitfalls in an experimental setting and outline their clinical consequences. METHODS: The AA was analyzed for five drugs with reported interaction with muscarinic receptors...
December 2016: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27687344/dose-ranging-effect-of-systemic-diphenhydramine-on-postoperative-quality-of-recovery-after-ambulatory-laparoscopic-surgery-a-randomized-placebo-controlled-double-blinded-clinical-trial
#20
Gildasio S De Oliveira, Jane Bialek, R-J Marcus, Robert McCarthy
STUDY OBJECTIVE: Diphenhydramine is an antihistamine with previously demonstrated analgesic and antiemetic properties. However, it is unknown if the beneficial perioperative properties of diphenhydramine can translate to a better quality of postsurgical recovery. The main objective of the current investigation was to investigate dose-ranging effects of diphenhydramine on quality of recovery after surgery. SETTING: Tertiary hospital in the United States. DESIGN: A prospective, randomized, double-blind trial...
November 2016: Journal of Clinical Anesthesia
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