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Ketamine As a Rapid Antidepressant
BJPsych Advances (2016), vol. 22, 222–233 doi: 10.1192/apt.bp.114.014274 ARTICLE Ketamine as a rapid anti depressant: the debate and implications Roger C. M. Ho & Melvyn W. Zhang Roger Ho is an Associate Professor response rates to SSRIs and NaSSAs are around SUMMARY and consultant psychiatrist in 62% and 67% respectively (Papakostas 2008). the Department of Psychological Ketamine, a synthetic derivative of phencyclidine, Environmental factors such as relationship Medicine, Yong Loo Lin School of is a commonly misused party drug that is Medicine, National University of problems, financial difficulties and comorbid restricted in high-income countries because of Singapore. He has a special interest substance misuse often lead to poor treatment its addictive potential. Ketamine is also used as in psychoneuroimmunology and response, and antidepressants combined with the interface between medicine an anaesthetic in human and veterinary medicine. and psychiatry. Melvyn Zhang In the 1990s, research using ketamine to study the CBT have shown promising results in prevention is a senior resident with the pathophysiology of schizophrenia was terminated of mood disorders (Brenner 2010). Although 70– National Addiction Management owing to ethical concerns. Recently, controversy 90% of patients with depression achieve remission, Service, Institute of Mental Health, surrounding the drug has returned, as researchers around 10–30% are refractory to initial treatment Singapore. Correspondence Dr Roger C. M. have demonstrated that intravenous ketamine but respond to switching or combination of Ho, National University of Singapore, infusion has a rapid antidepressant effect and antidepressants, electroconvulsive therapy (ECT) Department of Psychological have therefore proposed ketamine as a novel or psychotherapy. -
Predicting Intestinal and Hepatic First-Pass Metabolism of Orally Administered Testosterone Undecanoate
applied sciences Article Predicting Intestinal and Hepatic First-Pass Metabolism of Orally Administered Testosterone Undecanoate Atheer Zgair 1,2,* , Yousaf Dawood 1, Suhaib M. Ibrahem 1, Hyun-moon Back 3, Leonid Kagan 3, Pavel Gershkovich 2 and Jong Bong Lee 2 1 College of Pharmacy, University of Anbar, Ramadi 31001, Iraq; [email protected] (Y.D.); [email protected] (S.M.I.) 2 School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK; [email protected] (P.G.); [email protected] (J.B.L.) 3 Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA; [email protected] (H.-m.B.); [email protected] (L.K.) * Correspondence: [email protected]; Tel.: +964-(0)-781-777-1463 Received: 2 October 2020; Accepted: 15 October 2020; Published: 18 October 2020 Abstract: The bioavailability of orally administered drugs could be impacted by intestinal and hepatic first-pass metabolism. Testosterone undecanoate (TU), an orally administered ester prodrug of testosterone, is significantly subjected to first-pass metabolism. However, the individual contribution of intestinal and hepatic first-pass metabolism is not well determined. Therefore, the aim of the current study was to predict the metabolic contribution of each site. The hydrolysis–time profiles of TU incubation in human liver microsomes and Caco-2 cell homogenate were used to predict hepatic and intestinal first-pass metabolism, respectively. The in vitro half-life (t1/2 inv) for the hydrolysis of TU in microsomal mixtures was 28.31 3.51 min. By applying the “well-stirred” model, the fraction ± of TU that could escape hepatic first-pass metabolism (F ) was predicted as 0.915 0.009. -
Journal of Pharmacology and Experimental Therapeutics
Journal of Pharmacology and Experimental Therapeutics Molecular Determinants of Ligand Selectivity for the Human Multidrug And Toxin Extrusion Proteins, MATE1 and MATE-2K Bethzaida Astorga, Sean Ekins, Mark Morales and Stephen H Wright Department of Physiology, University of Arizona, Tucson, AZ 85724, USA (B.A., M.M., and S.H.W.) Collaborations in Chemistry, 5616 Hilltop Needmore Road, Fuquay-Varina NC 27526, USA (S.E.) Supplemental Table 1. Compounds selected by the common features pharmacophore after searching a database of 2690 FDA approved compounds (www.collaborativedrug.com). FitValue Common Name Indication 3.93897 PYRIMETHAMINE Antimalarial 3.3167 naloxone Antidote Naloxone Hydrochloride 3.27622 DEXMEDETOMIDINE Anxiolytic 3.2407 Chlordantoin Antifungal 3.1776 NALORPHINE Antidote Nalorphine Hydrochloride 3.15108 Perfosfamide Antineoplastic 3.11759 Cinchonidine Sulfate Antimalarial Cinchonidine 3.10352 Cinchonine Sulfate Antimalarial Cinchonine 3.07469 METHOHEXITAL Anesthetic 3.06799 PROGUANIL Antimalarial PROGUANIL HYDROCHLORIDE 100MG 3.05018 TOPIRAMATE Anticonvulsant 3.04366 MIDODRINE Antihypotensive Midodrine Hydrochloride 2.98558 Chlorbetamide Antiamebic 2.98463 TRIMETHOPRIM Antibiotic Antibacterial 2.98457 ZILEUTON Antiinflammatory 2.94205 AMINOMETRADINE Diuretic 2.89284 SCOPOLAMINE Antispasmodic ScopolamineHydrobromide 2.88791 ARTICAINE Anesthetic 2.84534 RITODRINE Tocolytic 2.82357 MITOBRONITOL Antineoplastic Mitolactol 2.81033 LORAZEPAM Anxiolytic 2.74943 ETHOHEXADIOL Insecticide 2.64902 METHOXAMINE Antihypotensive Methoxamine -
Meta-Analysis of the Dose-Response Relationship of SSRI in Obsessive
Molecular Psychiatry (2010) 15, 850–855 & 2010 Macmillan Publishers Limited All rights reserved 1359-4184/10 www.nature.com/mp ORIGINAL ARTICLE Meta-analysis of the dose-response relationship of SSRI in obsessive-compulsive disorder MH Bloch1, J McGuire1, A Landeros-Weisenberger1, JF Leckman1 and C Pittenger2 1Yale Child Study Center, Yale University School of Medicine, New Haven, CT, USA and 2Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA We sought to determine differences in efficacy and tolerability between different doses of selective serotonin reuptake inhibitors in the treatment of obsessive-compulsive disorder (OCD) using meta-analysis. We identified 9 studies involving 2268 subjects that were randomized, double-blind placebo-controlled clinical trials that compared multiple, fixed- doses of selective serotonin reuptake inhibitors (SSRIs) to each other and to placebo in the treatment of adults with OCD. Change in Y-BOCS score, proportion of treatment responders, and dropouts (all-cause and due to side-effects) were determined for each included study. Weighted mean difference was used to examine mean change in Y-BOCS score. Pooled absolute risk difference was used to examine dichotomous outcomes. Meta-analysis was performed using a fixed effects model in RevMan 4.2.8. We found that compared with either low or medium doses, higher doses of SSRIs were associated with improved treatment efficacy, using either Y-BOCS score or proportion of treatment responders as an outcome. Dose of SSRIs was not associated with the number of all-cause dropouts. Higher doses of SSRIs were associated with significantly higher proportion of dropouts due to side-effects. -
A Synbiotic Mixture Augmented the Efficacy of Doxepin, Venlafaxine
A synbiotic mixture augmented the efficacy of doxepin, venlafaxine, and fluvoxamine in mice model of depression Azadeh Mesripour1, Andiya Meshkati1, Valiolah Hajhashemi2 1Department of Pharmacology and Toxicology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, IRAN. 2‐ Isfahan Pharmaceutical Sciences Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, IRAN. ABSTRACT Objective: Currently available antidepressant drugs have notable downsides; in addition to their side effects and slow onset of action their moderate efficacy in some individuals, may influence compliance. Previous literature has shown that probiotics may have antidepressant effects. Introducing complementary medicineproof in order to augment the efficacy of therapeutic doses of antidepressant drugs seems to be very important. Therefore the effect of adding a synbiotic cocktail in drinking water was assessed in mice model of despair following administrating three antidepressant drugs belonging to different classes. Methods: The marble burring test (MBT), and forced swimming test (FST) were used as animal model of obsessive behavior and despair. The synbiotic cocktail was administered in mice drinking water (6.25×106 CFU) for 14 days and the tests were performed on the days 7 and 14 thirty minutes after injecting the lowest dose of doxepin (1 mg/kg), venlafaxine (15 mg/kg), and fluvoxamine (15 mg/kg). Results: After 7 days of the synbiotic ingestion immobility time decreased in FST for doxepin (92 sec ± 5.5) and venlafaxine (17.3 sec ± 2.5) compared to their control group (drinking water) but fluvoxamine could decrease immobility time after 14 days of ingesting the synbiotic (70 sec ± 7.5). -
PHARMACY of the MONTH Discovery Pharmacy, Volume 3, Number 7, January 2013 PHARMACY of the MONTH 18 54 – EISSN 2278 26 54 – Pharmacy
PHARMACY OF THE MONTH Discovery Pharmacy, Volume 3, Number 7, January 2013 PHARMACY OF THE MONTH 18 54 – EISSN 2278 26 54 – Pharmacy ISSN 2278 Intra- and Inter-Subject Variation in the Pharmacokinetics of Some Drugs- A Review Balasubramanian J1,2&4*, Tamil selvan2 1. Shield Health Care Pvt Ltd, Chennai-600 095, India 2. Sai Bio – Sciences Pvt Ltd, Chennai-600 094, India 3. Periyar Maniammai University, Thanjavur-613 403, Tamilnadu, India *Corresponding author: E-mail: [email protected] Received 24 November; accepted 21 December; published online 01 January; printed 16 January 2013 1. INTRODUCTION "Inter-individual variations of drugs pharmacokinetic parameters, resulting in fairly different plasma concentration-time profiles after administration of the same dose to different patients." Substantial differences in response to most drugs exist among patients. Therefore, the therapeutic standard dose of a drug, which is based on trails in healthy volunteers and patients, is not suitable for every patient. Variability exists in both pharmacokinetics and pharmacodynamics. For a typical drug, one standard deviation in the values observed for bioavailability (F), clearance (CL) and volume of distribution (Vd) would be about 20%, 50% and 30% respectively. Therefore, 95% of the time, the average concentration (Cav) will be between 35% and 270% of the target value. The most important factors in variability of pharmacokinetic parameters are: Genetic, Disease, Age and body size, Concomitant drugs, Environmental factors (e.g. foods, pollutants) and other factors include compliance, pregnancy, alcohol intake, seasonal variations, gender, or conditions of drug intake. 1.1. Genetic Patients vary widely in their responses to drugs. -
Doxepin Exacerbates Renal Damage, Glucose Intolerance, Nonalcoholic Fatty Liver Disease, and Urinary Chromium Loss in Obese Mice
pharmaceuticals Article Doxepin Exacerbates Renal Damage, Glucose Intolerance, Nonalcoholic Fatty Liver Disease, and Urinary Chromium Loss in Obese Mice Geng-Ruei Chang 1,* , Po-Hsun Hou 2,3, Wei-Cheng Yang 4, Chao-Min Wang 1 , Pei-Shan Fan 1, Huei-Jyuan Liao 1 and To-Pang Chen 5,* 1 Department of Veterinary Medicine, National Chiayi University, 580 Xinmin Road, Chiayi 60054, Taiwan; [email protected] (C.-M.W.); [email protected] (P.-S.F.); [email protected] (H.-J.L.) 2 Department of Psychiatry, Taichung Veterans General Hospital, 1650 Taiwan Boulevard (Section 4), Taichung 40705, Taiwan; [email protected] 3 Faculty of Medicine, National Yang-Ming University, 155 Linong Street (Section 2), Taipei 11221, Taiwan 4 School of Veterinary Medicine, National Taiwan University, 1 Roosevelt Road (Section 4), Taipei 10617, Taiwan; [email protected] 5 Division of Endocrinology and Metabolism, Show Chwan Memorial Hospital, 542 Chung-Shan Road (Section 1), Changhua 50008, Taiwan * Correspondence: [email protected] (G.-R.C.); [email protected] (T.-P.C.); Tel.: +886-5-2732946 (G.-R.C.); +886-4-7256166 (T.-P.C.) Abstract: Doxepin is commonly prescribed for depression and anxiety treatment. Doxepin-related disruptions to metabolism and renal/hepatic adverse effects remain unclear; thus, the underlying mechanism of action warrants further research. Here, we investigated how doxepin affects lipid Citation: Chang, G.-R.; Hou, P.-H.; change, glucose homeostasis, chromium (Cr) distribution, renal impairment, liver damage, and fatty Yang, W.-C.; Wang, C.-M.; Fan, P.-S.; liver scores in C57BL6/J mice subjected to a high-fat diet and 5 mg/kg/day doxepin treatment for Liao, H.-J.; Chen, T.-P. -
A Synbiotic Mixture Augmented the Efficacy of Doxepin, Venlafaxine
Turk J Pharm Sci 2020;17(3):293-298 DOI: 10.4274/tjps.galenos.2019.94210 ORIGINAL ARTICLE A Synbiotic Mixture Augmented the Efficacy of Doxepin, Venlafaxine, and Fluvoxamine in a Mouse Model of Depression Sinbiyotik Karışım, Fare Depresyon Modelinde Doksepin, Venlafaksin ve Fluvoksaminin Etkinliğini Artırdı Azadeh MESRIPOUR1*, Andiya MESHKATI1, Valiollah HAJHASHEMI2 1Isfahan University of Medical Sciences, School of Pharmacy and Pharmaceutical Sciences, Department of Pharmacology and Toxicology, Isfahan, Iran 2Isfahan University of Medical Sciences, School of Pharmacy and Pharmaceutical Sciences, Isfahan Pharmaceutical Sciences Research Center, Isfahan, Iran ABSTRACT Objectives: Currently available antidepressant drugs have notable downsides; in addition to their side effects and slow onset of action their moderate efficacy in some individuals may influence compliance. Previous literature has shown that probiotics may have antidepressant effects. Introducing complementary medicine in order to augment the efficacy of therapeutic doses of antidepressant drugs appears to be very important. Therefore, the effect of adding a synbiotic mixture to drinking water was assessed in a mouse model of depression following the administration of three antidepressant drugs belonging to different classes. Materials and Methods: The marble burying test (MBT) and forced swimming test (FST) were used as animal models of obsessive behavior and despair. The synbiotic mixture was administered to the mice’s drinking water (6.25x106 CFU) for 14 days and the tests were performed 30 min after the injection of the lowest dose of doxepin (1 mg/kg), venlafaxine (15 mg/kg), and fluvoxamine (15 mg/kg) on days 7 and 14. Results: After 7 days of ingestion of the synbiotic mixture, immobility time decreased in the FST for doxepin (92±5.5 s) and venlafaxine (17.3±2.5 s) compared to the control group (drinking water), but fluvoxamine decreased immobility time after 14 days of ingestion of the synbiotic mixture (70±7.5 s). -
Paper Clip—High Risk Medications
You belong. PAPER CLIP—HIGH RISK MEDICATIONS Description: Some medications may be risky for people over 65 years of age and there may be safer drug choices to treat some conditions. It is recommended that medications are reviewed regularly with your providers/prescriber to ensure patient safety. Condition Treated Current Medication(s)-High Risk Safer Alternatives to Consider Urinary Tract Infections (UTIs), Nitrofurantoin Bactrim (sulfamethoxazole/trimethoprim) or recurrent UTIs, or Prophylaxis (Macrobid, or Macrodantin) Trimpex/Proloprim/Primsol (trimethoprim) Allergies Hydroxyzine (Vistaril, Atarax) Xyzal (Levocetirizine) Anxiety Hydroxyzine (Vistaril, Atarax) Buspar (Buspirone), Paxil (Paroxetine), Effexor (Venlafaxine) Parkinson’s Hydroxyzine (Vistaril, Atarax) Symmetrel (Amantadine), Sinemet (Carbidopa/levodopa), Selegiline (Eldepryl) Motion Sickness Hydroxyzine (Vistaril, Atarax) Antivert (Meclizine) Nausea & Vomiting Hydroxyzine (Vistaril, Atarax) Zofran (Ondansetron) Insomnia Hydroxyzine (Vistaril, Atarax) Ramelteon (Rozerem), Doxepin (Silenor) Chronic Insomnia Eszopiclone (Lunesta) Ramelteon (Rozerem), Doxepin (Silenor) Chronic Insomnia Zolpidem (Ambien) Ramelteon (Rozerem), Doxepin (Silenor) Chronic Insomnia Zaleplon (Sonata) Ramelteon (Rozerem), Doxepin (Silenor) Muscle Relaxants Cyclobenazprine (Flexeril, Amrix) NSAIDs (Ibuprofen, naproxen) or Hydrocodone Codeine Tramadol (Ultram) Baclofen (Lioresal) Tizanidine (Zanaflex) Migraine Prophylaxis Elavil (Amitriptyline) Propranolol (Inderal), Timolol (Blocadren), Topiramate (Topamax), -
Impact of Citalopram and Fluvoxamine on Platelet Response To
S24_5 Impact of Citalopram and Fluvoxamine on Platelet Response to Clopidogrel, a Randomized, Double-blind, Crossover Trial Bruria Hirsh Racch1, Galia Spectre2, Ella Shai2, Amit Ritter3, David Varon2, Ronny Alcalai3 1School of Pharmacy, Hadassah Hebrew University Medical Center, Israel 2Coagulation Unit, Hematology, Hadassah Hebrew University Medical Center, Israel 3Heart Institute, Hadassah Hebrew University Medical Center, Israel Background: Selective serotonin reuptake inhibitors (SSRI) are widely used antidepressant agents. Studies have shown that use of SSRI in combination with aspirin or warfarin is associated with an increased risk bleeding, while little information is known about the interaction of SSRIs and clopidogrel. Fluvoxamine and citalopram are both SSRIs and while fluvoxamine is an inhibitor of CYP2C19 and thus might reduce the efficacy of clopidogrel, the effect of citalopram on liver metabolism is unknown. Aim: The aim was to assess the effect these two different SSRIs on platelet aggregation and on the laboratory response to clopidogrel. Methods: A randomized, double-blind, crossover study in 15 healthy volunteers comparing the antiplatelet effect of clopidogrel with and without fluvoxamine or citalopram .The response to clopidogrel was assessed by Light Transmittance Aggregometry with10µmol/L ADP and by vasodilator-stimulated phosphoprotein (VASP) phosphorylation, a measure of P2Y12 receptor reactivity. Results: Mean baseline platelet aggregation was 80.1%±3.4 and reduced to 23.5% after treatment with clopidogrel. Both fluvoxamine and citalopram had modest effect on platelet reactivity (65.8%±6.4, p=0.06 vs. baseline and 67.3%±6.3, p=0.07 vs. baseline respectively). Laboratory response to clopidogrel was significantly better in the presence of citalopram as compared to fluvoxamine both in aggregometry (23.4%±3 vs. -
Pharmacokinetics and Pharmacology of Drugs Used in Children
Drug and Fluid Th erapy SECTION II Pharmacokinetics and Pharmacology of Drugs Used CHAPTER 6 in Children Charles J. Coté, Jerrold Lerman, Robert M. Ward, Ralph A. Lugo, and Nishan Goudsouzian Drug Distribution Propofol Protein Binding Ketamine Body Composition Etomidate Metabolism and Excretion Muscle Relaxants Hepatic Blood Flow Succinylcholine Renal Excretion Intermediate-Acting Nondepolarizing Relaxants Pharmacokinetic Principles and Calculations Atracurium First-Order Kinetics Cisatracurium Half-Life Vecuronium First-Order Single-Compartment Kinetics Rocuronium First-Order Multiple-Compartment Kinetics Clinical Implications When Using Short- and Zero-Order Kinetics Intermediate-Acting Relaxants Apparent Volume of Distribution Long-Acting Nondepolarizing Relaxants Repetitive Dosing and Drug Accumulation Pancuronium Steady State Antagonism of Muscle Relaxants Loading Dose General Principles Central Nervous System Effects Suggamadex The Drug Approval Process, the Package Insert, and Relaxants in Special Situations Drug Labeling Opioids Inhalation Anesthetic Agents Morphine Physicochemical Properties Meperidine Pharmacokinetics of Inhaled Anesthetics Hydromorphone Pharmacodynamics of Inhaled Anesthetics Oxycodone Clinical Effects Methadone Nitrous Oxide Fentanyl Environmental Impact Alfentanil Oxygen Sufentanil Intravenous Anesthetic Agents Remifentanil Barbiturates Butorphanol and Nalbuphine 89 A Practice of Anesthesia for Infants and Children Codeine Antiemetics Tramadol Metoclopramide Nonsteroidal Anti-infl ammatory Agents 5-Hydroxytryptamine -
Prior Authorization Protocol BELSOMRA® (Suvorexant)
Prior Authorization Protocol BELSOMRA (suvorexant), EDLUAR , INTERMEZZO (zolpidem sublingual tablets), ROZEREM (ramelteon), SILENOR® (doxepin), ZOLPIMIST ® (zolpidem spray) NATL Coverage of drugs is first determined by the member’s pharmacy benefit. Please consult with or refer to the Evidence of Coverage document. I. FDA Approved Indications: Edluar • Short-term treatment of insomnia characterized by difficulties with sleep initiation Intermezzo • Treatment of insomnia when a middle-of-the-night awakening is followed by difficulty returning to sleep Zolpimist • Short-term treatment of insomnia characterized by difficulties with sleep initiation. Rozerem • Treatment of insomnia characterized by difficulty with sleep onset Silenor • Treatment of insomnia characterized by difficulties with sleep maintenance Belsomra • Treatment of insomnia, characterized by difficulties with sleep onset and/or sleep maintenance II. Health Net Approved Indications and Usage Guidelines: Belsomra, Silenor • Diagnosis of insomnia AND • Failure or clinically significant adverse effects to zolpidem or zolpidem CR Intermezzo • Diagnosis of insomnia AND • History of insomnia with difficulty returning to sleep after middle of the night awakening Edluar, Zolpimist • Diagnosis of insomnia Confidential and Proprietary Page 1 Date Prepared: 11.23.05JE Approved by Health Net Pharmacy & Therapeutic s Committee: 02.14.06, 04.11.06, 05.16.07, 11.19.08, 11.18.09, 11.17.10, 11.9.11, 11.14.12, 11.20.13, 11.19.14, 11.18.15 Updated: 05.09.06 JE, 10.03.06 RG, 02.08.07CM,