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P Seeman
Although all current antipsychotics act by interfering with the action of dopamine at dopamine D2 receptors, two recent reports showed that 800 to 1000 mg of cannabidiol per day alleviated the signs and symptoms of schizophrenia, although cannabidiol is not known to act on dopamine receptors. Because these recent clinical findings may indicate an important exception to the general rule that all antipsychotics interfere with dopamine at dopamine D2 receptors, the present study examined whether cannabidiol acted directly on D2 receptors, using tritiated domperidone to label rat brain striatal D2 receptors...
October 18, 2016: Translational Psychiatry
Cristina Varas-Lorenzo, Alejandro Arana, Catherine B Johannes, Lisa J McQuay, Kenneth J Rothman, Daniel Fife
BACKGROUND: The ascertainment of sudden cardiac death (SCD) in electronic health databases is challenging. OBJECTIVES: Our objective was to evaluate the applicability of the validated computer definition of SCD developed by Chung et al. in a retrospective study of SCD and domperidone exposure in the Clinical Practice Research Datalink (CPRD). METHODS: We assessed out-of-hospital SCD by applying the validated computer definition and linking data with Hospital Episode Statistics and death certificates...
September 2016: Drugs—Real World Outcomes
A Acharjee, R Chaube, K P Joy
The commercial fish spawning inducer Ovaprim (OVP) containing a salmon gonadotropin-releasing hormone analogue and domperidone (a dopamine receptor-2 antagonist) has been widely used as an effective spawning inducer in artificial breeding of fishes. It induces a preovulatory LH surge resulting in final oocyte maturation (FOM) and ovulation through a mechanism involving a steroidogenic shift to secrete a maturation-inducing steroid (MIS). In the present study, a 0.5μL/g body weight dose of OVP each injected at 0h and 24h intraperitoneally into gravid female catfish, Heteropneustes fossilis resulted in periovulatory changes in gonadotropin (GtH) subunit gene expression and steroid hormone levels...
October 5, 2016: General and Comparative Endocrinology
Mohammad Bashashati, Irene Sarosiek, Tariq Siddiqui, Richard W McCallum
No abstract text is available yet for this article.
October 6, 2016: Digestive Diseases and Sciences
I Mouch, J R B J Brouwers, E van 't Riet, P Nieboer, M H Otten, F G A Jansman
OBJECTIVE: To investigate whether the anti-emetics metoclopramide and domperidone can be replaced by 5-HT3-antagonists, as side effects restrict use of these dopamine antagonists. DESIGN: Systematic review. METHOD: We searched the Embase and PubMed databases for articles published in the period 1995-October 2015, in which the efficacy or side effects of metoclopramide or domperidone were compared with at least one of the 5-HT3-antagonists ondansetron, granisetron, tropisetron or palonosetron...
2016: Nederlands Tijdschrift Voor Geneeskunde
Alaj Hommel, M J Faber, N J Weerkamp, J G van Dijk, B R Bloem, R T Koopmans
BACKGROUND: Orthostatic hypotension (OH) in Parkinson's disease (PD) is a common non-motor sign that can be hard to recognize and treat. OH prevalence and treatment in institutionalized PD-patients remains unknown. OBJECTIVE: The aim of this study was to explore the prevalence and prescribed treatments of OH in institutionalized patients with PD. METHOD: A cross-sectional study of nursing homes in the south-east of the Netherlands identified 64 residents with PD (inclusion criteria: MMSE >18)...
October 19, 2016: Journal of Parkinson's Disease
Li-Na Meng, Shanshan Chen, Jiande D Z Chen, Hai-Feng Jin, Bin Lu
Objective. To investigate effects and possible mechanisms of transcutaneous electrical acustimulation (TEA) performed by a wearable watch-size stimulator for refractory gastroesophageal reflux disease (RGERD). Methods. Twenty patients diagnosed as RGERD were enrolled in the study and randomly divided into four groups: esomeprazole group (Group A), esomeprazole combined with TEA group (Group B), esomeprazole combined with sham-TEA group (Group C), and esomeprazole combined with domperidone group (Group D). HRM and 24 h pH-impedance monitoring and GerdQ score were used to measure related indexes before and after treatment...
2016: Evidence-based Complementary and Alternative Medicine: ECAM
Ron Schey, Mohammed Saadi, Deena Midani, Aaron C Roberts, Rahul Parupalli, Henry P Parkman
BACKGROUND: There is increased awareness about risks and benefits of using domperidone to treat gastroparesis. AIM: To describe the outcome of treating patients with refractory gastroparesis symptoms with domperidone. METHODS: Domperidone 10 mg QID or TID was prescribed to patients with refractory gastroparesis symptoms; follow-up obtained at 2-3 months assessing symptoms and side effects. Patients filled out Patient Assessment of Upper GI Symptoms prior to treatment and at follow-up along with Clinical Patient Grading Assessment Scale (CPGAS, +7 = completely better; 0 = no change)...
August 16, 2016: Digestive Diseases and Sciences
Sonia Goineau, Vincent Castagné
INTRODUCTION: Nausea is a subjective sensation often preceding emesis in humans. Drug-induced nausea remains difficult to predict in preclinical tests. The aim of this study was to compare the effects of emetic agents in rats (pica behavior), ferrets (acute and delayed phases of emesis) or dogs (emesis and cardiovascular endpoints). METHODS: Rats and ferrets were administered cisplatin (±aprepitant/ondansetron or aprepitant) or apomorphine (±domperidone). Telemetered dogs were administered apomorphine (±domperidone)...
July 28, 2016: Journal of Pharmacological and Toxicological Methods
Nauzer Forbes, Mohan Cooray, Raed Al-Dabbagh, Yuhong Yuan, Frances Tse, Louis W C Liu, Ted Xenodemetropoulos
Background. In 2012, Health Canada released a warning regarding domperidone use, based on associations with life-threatening arrhythmias and death. Objective. This study aimed to compare the appropriateness of domperidone prescribing patterns before the advisory to those afterward. Methods. Two retrospective reviews were conducted for patients prescribed domperidone during quarters in 2005 and 2012. Outcomes included appropriateness of indication, dosing regimens, monitoring of electrolytes, baseline electrocardiogram performance and characteristics, presence of left ventricular dysfunction, and coprescription of QT-prolonging medications...
2016: Canadian Journal of Gastroenterology & Hepatology
Amy D Morris, Jennifer Chen, Elaine Lau, Jennifer Poh
BACKGROUND: Domperidone is a prokinetic agent used to treat pediatric gastroesophageal reflux disease. Health Canada has issued warnings about an increased risk of domperidone-associated ventricular arrhythmias and sudden cardiac death. However, the supporting data referred only to adult patients; therefore, extrapolating the safety risks to pediatric patients is difficult. OBJECTIVE: To summarize and evaluate the evidence for domperidone-associated QT interval prolongation, ventricular arrhythmias, and sudden cardiac death to determine the safety of this drug for pediatric patients...
May 2016: Canadian Journal of Hospital Pharmacy
Daisuke Sakano, Sungik Choi, Masateru Kataoka, Nobuaki Shiraki, Motonari Uesugi, Kazuhiko Kume, Shoen Kume
Understanding the molecular mechanisms that regulate β cell mass and proliferation is important for the treatment of diabetes. Here, we identified domperidone (DPD), a dopamine D2 receptor (DRD2) antagonist that enhances β cell mass. Over time, islet β cell loss occurs in dissociation cultures, and this was inhibited by DPD. DPD increased proliferation and decreased apoptosis of β cells through increasing intracellular cAMP. DPD prevented β cell dedifferentiation, which together highly contributed to the increased β cell mass...
July 12, 2016: Stem Cell Reports
Peer Carsten Tfelt-Hansen
BACKGROUND: In most pharmacokinetic studies, the oral absorption of drugs is impaired during migraine attacks but exceptions occur. A study on gastric emptying using gastric scintigraphy indicated that gastric stasis also occurs interictally in migraine. These studies were reviewed critically. RESULTS: In seven studies, mainly investigating NSAIDs and analgesics, the early absorption of the drugs during 112 migraine attacks was delayed. The absorption of sumatriptan is usual in therapeutic doses, and rizatriptan was normal during 131 migraine attacks...
June 20, 2016: Cephalalgia: An International Journal of Headache
Kate Smolina, Barbara Mintzes, Gillian E Hanley, Tim F Oberlander, Steven G Morgan
PURPOSE: The aim of this study is to examine the relationship between domperidone (commonly used off-label for lactation stimulation), ventricular arrhythmia and all-cause mortality during the postpartum period. METHODS: This is a retrospective, population-based cohort study of all women with a live birth between 1 January 2002 and 31 December 2011 in British Columbia, Canada. Cox proportional hazards models, yielding hazard ratios (HRs), were used to estimate the risk of hospitalization for ventricular arrhythmia associated with domperidone exposure within six months postpartum...
June 14, 2016: Pharmacoepidemiology and Drug Safety
Kate Smolina, Steven G Morgan, Gillian E Hanley, Tim F Oberlander, Barbara Mintzes
BACKGROUND: Domperidone is commonly used off-label to stimulate milk production in mothers who have low milk supply. The aim of this study was to describe trends, patterns and determinants of postpartum domperidone use. METHODS: This is a retrospective, population-based study involving all women with a live birth between Jan. 1, 2002, and Dec. 31, 2011, in the province of British Columbia. We examined administrative data sets containing person-specific information on filled prescriptions and use of medical services, and we used logistic regression to examine associations between domperidone use and maternal characteristics...
January 2016: CMAJ Open
William Hall
Domperidone is a dopamine D2 receptor antagonist acting on the chemoreceptor trigger zone in the medulla and also in the gut, causing antiemetic and gastrokinetic effects respectively. In the past, domperidone was considered largely safe, with many indications and few contraindications listed in the product literature. In 2014, Domperidone became indicated only for the prevention of nausea and vomiting and the duration of treatment was limited to seven days. Furthermore, the maximum daily dose was limited to thirty milligrams...
2016: BMJ Quality Improvement Reports
Eli D Ehrenpreis, Grigory Roginsky, Aimee Alexoff, Dylan G Smith
INTRODUCTION: Domperidone, a peripheral D2 dopamine receptor antagonist, has efficacy for treatment of nausea, dyspepsia, and gastroparesis. Domperidone prolongs the QT interval (QTc), and may cause life-threatening arrhythmias. METHODS: Electronic medical records for all patients receiving domperidone in the NorthShore University HealthSystem from January 1, 2008 to December 1, 2013 were reviewed. All concomitant medications were noted. The coadministration of QT-interacting medications was determined...
May 13, 2016: Journal of Clinical Gastroenterology
Chun-Ling Zhang, Chang-Hui Geng, Zhi-Wei Yang, Yan-Lin Li, Li-Quan Tong, Ping Gao, Yue-Qiu Gao
AIM: To investigate the changes in clinical symptoms and gastric emptying and their association in functional dyspepsia (FD) patients. METHODS: Seventy FD patients were enrolled and divided into 2 groups Helicobacter pylori (H. pylori)-negative group (28 patients), and H. pylori-positive group (42 patients). Patients in the H. pylori-positive group were further randomly divided into groups: H. pylori-treatment group (21 patients) and conventional treatment group (21 patients)...
May 14, 2016: World Journal of Gastroenterology: WJG
Xin Chang, Shuai Wang, Yong-Rui Bao, Tian-Jiao Li, Xiao-Meng Yu, Xian-Sheng Meng
ETHNOPHARMACOLOGICAL RELEVANCE: Qizhiweitong particles (QZWT) which is derived from the Sinisan decoction in Shang Han Za Bing Lun, composed of Bupleurum chinenis, Paeonia obovata, Citrus aurantium L., Glycyrrhiza uralensis Fisch., Cyperus rotundus and Rhizoma Corydalis is a traditional Chinese medicine (TCM) treating gastrointestinal diseases. It have been used in clinical for years. It have been used in clinical for years. According to previous research, Bupleurum chinenis, Citrus aurantium, Cyperus rotundus in QZWT play the role of promoting gastric peristalsis, which consist of complex chemical constituents...
August 2, 2016: Journal of Ethnopharmacology
Chingching Foocharoen, Kitti Chunlertrith, Pisaln Mairiang, Ajanee Mahakkanukrauh, Siraphop Suwannaroj, Suwassa Namvijit, Orathai Wantha, Ratanavadee Nanagara
OBJECTIVES: Twice-daily dosing of proton pump inhibitor (PPI), the standard therapy for gastro-oesophageal reflux disease (GERD), is an effective therapy for GERD in SSc. The aim of this study was to compare the efficacy of omeprazole in combination with domperidone vs in combination with algycon in reducing the severity and frequency of reflux symptoms of PPI partial response (PPI-PR) GERD in SSc. METHODS: Adult SSc patients having PPI-PR GERD were randomly assigned to receive domperidone plus algycon placebo or algycon plus domperidone placebo in a 1:1 ratio plus omeprazole for 4 weeks...
May 13, 2016: Rheumatology
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