Sign up to Get Early Access (

Total Page:16

File Type:pdf, Size:1020Kb

Sign up to Get Early Access ( 5/25/2017 Digoxin ­ DrugBank ID Pharmacology Interactions References Trials Economics Properties Spectra Taxonomy Targets (1) Enzymes (2) Transporters (12) Biointeractions (17) (/drugs/DB00390/biointeractions) Show Drugs with Similar Structures Get DrugBank to go! The DrugBank app for iOS and Android is coming soon. (http://eepurl.com/bZh6g9) Sign up to get early access (http://eepurl.com/bZh6g9) Identication Name Digoxin Accession Number DB00390 (APRD00098) Type Small Molecule Groups Approved Description A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone digoxigenin. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in atrial brillation and in the management of congestive heart failure with atrial brillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666) Structure O O O H CH CH CH CH HO HO O O O (/structures/DB00390/image.svg) O H O HO O HO O CH MOL (/structures/small_molecule_drugs/DB00390.mol) SDF (/structures/small_molecule_drugs/DB00390.sdf) PDB (/structures/small_molecule_drugs/DB00390.pdb) SMILES (/structures/small_molecule_drugs/DB00390.smiles) InChI (/structures/small_molecule_drugs/DB00390.inchi) https://www.drugbank.ca/drugs/DB00390 1/25 5/25/2017 Digoxin ­ DrugBank Synonyms 12beta-Hydroxydigitoxin 12β-hydroxydigitoxin 4-[(3S,5R,8R,9S,10S,12R,13S,14S)-3-[(2S,4S,5R,6R)-5-[(2S,4S,5R,6R)-5-[(2S,4S,5R,6R)-4,5-dihydroxy-6-methyl-oxan-2-yl]oxy-4-hydroxy-6-methyl-oxan-2-yl]oxy-4-hydroxy-6-methyl- oxan-2-yl]oxy-12,14-dihydroxy-10,13-dimethyl-1,2,3,4,5,6,7,8,9,11,12,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]-5H-furan-2-one Digazolan Digossina Digoxin Digoxina Digoxine Digoxinum Lanadicor External IDs Not Available Product Not Available Ingredients Approved Show 10 entries Prescription Products Search Name Dosage Strength Route Labeller Marketing Start Marketing End Digoxin Tablet .25 mg/1 Oral Par Pharmaceutical 2014-01-14 Not applicable Digoxin Tablet .125 mg/1 Oral Remedy Repack 2016-09-12 2017-03-04 Digoxin Solution .05 mg/mL Oral Precision Dose, Inc. 2017-01-19 Not applicable Digoxin Tablet .125 mg/1 Oral Par Pharmaceutical 2014-01-14 Not applicable Digoxin Tablet .25 mg/1 Oral Remedy Repack 2016-09-21 2017-03-04 Digoxin Tablet .125 mg/1 Oral State of Florida DOH Central Pharmacy 2014-11-01 Not applicable Digoxin Tablet .125 mg/1 Oral Nucare Pharmaceuticals, Inc. 2014-01-14 Not applicable Digoxin Tablet .25 mg/1 Oral Remedy Repack 2017-03-09 Not applicable Digoxin Tablet .125 mg/1 Oral Ncs Health Care Of Ky, Inc Dba Vangard Labs 2014-01-14 Not applicable Digoxin Tablet .25 mg/1 Oral Nucare Pharmaceuticals, Inc. 2014-01-14 Not applicable Showing 1 to 10 of 57 entries Previous 1 2 3 4 5 6 Next https://www.drugbank.ca/drugs/DB00390 2/25 5/25/2017 Digoxin ­ DrugBank Approved Generic Show 10 entries Prescription Products Search Name Dosage Strength Route Labeller Marketing Start Marketing End Apo- Tablet 0.25 mg Oral Apotex Corporation 2006-06-22 Not applicable digoxin Apo- Tablet 0.125 mg Oral Apotex Corporation 2006-06-22 Not applicable digoxin Apo- Tablet 0.0625 mg Oral Apotex Corporation 2006-06-22 Not applicable digoxin Digitek Tablet .125 mg/1 Oral Mylan Institutional 2015-05-06 Not applicable Digitek Tablet .125 mg/1 Oral Mylan Pharmaceuticals 2014-11-17 Not applicable Digitek Tablet .25 mg/1 Oral Mylan Institutional 2015-05-06 Not applicable Digitek Tablet .25 mg/1 Oral Mylan Pharmaceuticals 2014-11-17 Not applicable Digox Tablet 250 ug/1 Oral Aidarex Pharmaceuticals LLC 2002-07-26 Not applicable Digox Tablet 125 ug/1 Oral TYA Pharmaceuticals 2002-07-26 Not applicable Digox Tablet 125 ug/1 Oral Carilion Materials Management 2002-07-26 Not applicable Showing 1 to 10 of 76 entries Previous 1 2 3 4 5 … 8 Next Approved Over the Not Available Counter Products Unapproved/Other Not Available Products https://www.drugbank.ca/drugs/DB00390 3/25 5/25/2017 Digoxin ­ DrugBank International Show 10 entries Brands Search Name Company Agoxin Aristopharma Cardiacin Center Cardiogoxin Medipharma Cardioxin Oboi Cardoxin Not Available Celoxin Celon Centoxin Opsonin Digacin mibe Digocard-G Klonal Digoxina GlaxoSmithKline Showing 1 to 10 of 16 entries Previous 1 2 Next Brand mixtures Not Available Categories Anti-Arrhythmia Agents (/categories/DBCAT000520) Bradycardia-Causing Agents (/categories/DBCAT002703) Carbohydrates (/categories/DBCAT000085) Cardanolides (/categories/DBCAT000822) Cardenolides (/categories/DBCAT000823) Cardiac Glycosides (/categories/DBCAT000821) Cardiac Therapy (/categories/DBCAT002210) Cardiotonic Agents (/categories/DBCAT000589) Cardiovascular Agents (/categories/DBCAT000010) Cardiovascular System (/categories/DBCAT002169) Cytochrome P-450 CYP3A4 Substrates (/categories/DBCAT002646) Digitalis Glycosides (/categories/DBCAT000820) Enzyme Inhibitors (/categories/DBCAT000003) Glycosides (/categories/DBCAT000257) OATP1B1/SLCO1B1 Substrates (/categories/DBCAT002658) P-glycoprotein/ABCB1 Inducers (/categories/DBCAT002666) P-glycoprotein/ABCB1 Inhibitors (/categories/DBCAT002667) P-glycoprotein/ABCB1 Substrates (/categories/DBCAT002668) Protective Agents (/categories/DBCAT000367) Steroids (/categories/DBCAT000309) https://www.drugbank.ca/drugs/DB00390 4/25 5/25/2017 Digoxin ­ DrugBank UNII 73K4184T59 (http://fdasis.nlm.nih.gov/srs/srsdirect.jsp?regno=73K4184T59) CAS number 20830-75-5 Weight Average: 780.9385 Monoisotopic: 780.429606756 Chemical Formula C41H64O14 InChI Key LTMHDMANZUZIPE-PUGKRICDSA-N InChI InChI=1S/C41H64O14/c1-19-36(47)28(42)15-34(50-19)54-38-21(3)52-35(17-30(38)44)55-37-20(2)51-33(16-29(37)43)53-24-8-10-39(4)23(13-24)6-7-26-27(39)14- 31(45)40(5)25(9-11-41(26,40)48)22-12-32(46)49-18-22/h12,19-21,23-31,33-38,42-45,47-48H,6-11,13-18H2,1- 5H3/t19-,20-,21-,23-,24+,25-,26-,27+,28+,29+,30+,31-,33+,34+,35+,36-,37-,38-,39+,40+,41+/m1/s1 IUPAC Name 4-[(1S,2S,5S,7R,10R,11S,14R,15S,16R)-5-{[(2R,4S,5S,6R)-5-{[(2S,4S,5S,6R)-5-{[(2S,4S,5S,6R)-4,5-dihydroxy-6-methyloxan-2-yl]oxy}-4-hydroxy-6-methyloxan-2-yl]oxy}-4- hydroxy-6-methyloxan-2-yl]oxy}-11,16-dihydroxy-2,15-dimethyltetracyclo[8.7.0.0²,⁷.0¹¹,¹⁵]heptadecan-14-yl]-2,5-dihydrofuran-2-one SMILES [H][C@]12CC[C@]3([H])[C@]([H])(C[C@@H](O)[C@]4(C)[C@H](CC[C@]34O)C3=CC(=O)OC3)[C@@]1(C)CC[C@@H](C2)O[C@H]1C[C@H](O)[C@H](O[C@H]2C[C@H](O) [C@H](O[C@H]3C[C@H](O)[C@H](O)[C@@H](C)O3)[C@@H](C)O2)[C@@H](C)O1 Pharmacology Indication For the treatment and management of congestive cardiac insufciency, arrhythmias and heart failure. Structured Chronic Atrial Fibrillation (/indications/DBCOND0065022) Indications NYHA Class I or II heart failure (/indications/DBCOND0025082) NYHA Class III Heart Failure (/indications/DBCOND0048244) Pharmacodynamics Digoxin, a cardiac glycoside similar to digitoxin, is used to treat congestive heart failure and supraventricular arrhythmias due to reentry mechanisms, and to control ventricular rate in the treatment of chronic atrial brillation. Mechanism of Digoxin inhibits the Na-K-ATPase membrane pump, resulting in an increase in intracellular sodium. The sodium calcium exchanger (NCX)in turn tries to extrude the sodium action and in so doing, pumps in more calcium. Increased intracellular concentrations of calcium may promote activation of contractile proteins (e.g., actin, myosin). Digoxin also acts on the electrical activity of the heart, increasing the slope of phase 4 depolarization, shortening the action potential duration, and decreasing the maximal diastolic potential. Pharmacological Target Kind action Actions Organism UniProt ID Sodium/potassium-transporting ATPase subunit alpha- Protein yes Not Human P05023 (http://www.uniprot.org/uniprot/P05023) details 1 Available Related Articles Absorption Absorption of digoxin from the elixir pediatric formulation has been demonstrated to be 70% to 85% complete (90% to 100% from the capsules, and 60% to 80% for tablets). Volume of Not Available distribution Protein binding 25% https://www.drugbank.ca/drugs/DB00390 5/25 5/25/2017 Digoxin ­ DrugBank Metabolism Hepatic (but not dependent upon the cytochrome P-450 system). The end metabolites, which include 3 b-digoxigenin, 3-keto-digoxigenin, and their glucuronide and sulfate conjugates, are polar in nature and are postulated to be formed via hydrolysis, oxidation, and conjugation. Substrate Enzymes Product Digoxin 3 b-digoxigenin (/metabolites/DBMET00697) Details (/reactions/718) Not Available Digoxin 3-keto-digoxigenin (/metabolites/DBMET00716) Details (/reactions/737) Not Available Route of Following intravenous administration to healthy volunteers, 50% to 70% of a digoxin dose is excreted unchanged in the urine. elimination Half life 3.5 to 5 days Clearance Not Available Toxicity Toxicity includes ventricular tachycardia or ventricular brillation, or progressive bradyarrhythmias, or heart block. LD50 = 7.8 mg/kg (orally in mice). Affected organisms Humans and other mammals Pathways Not Available Pharmacogenomic Not Available Effects/ADRs Interactions https://www.drugbank.ca/drugs/DB00390 6/25 5/25/2017 Digoxin ­ DrugBank Drug Interactions Show 10 entries Search Drug Interaction Drug group 1,10-Phenanthroline The serum concentration of Digoxin can be increased when it is combined with 1,10-Phenanthroline. Experimental (/drugs/DB02365) 2-(4-Chlorophenyl)-5- Digoxin may decrease the cardiotoxic activities of 2-(4-Chlorophenyl)-5-Quinoxalinecarboxamide. Experimental Quinoxalinecarboxamide (/drugs/DB03509) 2-Methoxyestradiol Digoxin may decrease the cardiotoxic activities of 2-Methoxyestradiol. Investigational (/drugs/DB02342) 3-Methoxybenzamide Digoxin may decrease the cardiotoxic activities of 3-Methoxybenzamide. Experimental (/drugs/DB03073) 3,4-Dichloroisocoumarin The serum concentration of Digoxin can be increased when it is combined with 3,4- Experimental (/drugs/DB04459) Dichloroisocoumarin.
Recommended publications
  • UNIVERSITY of CALIFORNIA, SAN DIEGO The
    UNIVERSITY OF CALIFORNIA, SAN DIEGO The Transporter-Opsin-G protein-coupled receptor (TOG) Superfamily A Thesis submitted in partial satisfaction of the requirements for the degree Master of Science in Biology by Daniel Choi Yee Committee in charge: Professor Milton H. Saier Jr., Chair Professor Yunde Zhao Professor Lin Chao 2014 The Thesis of Daniel Yee is approved and it is acceptable in quality and form for publication on microfilm and electronically: _____________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ Chair University of California, San Diego 2014 iii DEDICATION This thesis is dedicated to my parents, my family, and my mentor, Dr. Saier. It is only with their help and perseverance that I have been able to complete it. iv TABLE OF CONTENTS Signature Page ............................................................................................................... iii Dedication ...................................................................................................................... iv Table of Contents ........................................................................................................... v List of Abbreviations ..................................................................................................... vi List of Supplemental Files ............................................................................................ vii List of
    [Show full text]
  • Three-Dimensional Structure of Holo 3A,20J3-Hydroxysteroid
    Proc. Nati. Acad. Sci. USA Vol. 88, pp. 10064-10068, November 1991 Biochemistry Three-dimensional structure of holo 3a,20j3-hydroxysteroid dehydrogenase: A member of a short-chain dehydrogenase family (x-ray crystaflography/steroid-metabolizing enzyme/dinucleotide-linked oxldoreductase/sterold-protein interaction/sequence and folding homologies) DEBASHIS GHOSH*t, CHARLES M. WEEKS*, PAWEL GROCHULSKI*t, WILLIAM L. DUAX*, MARY ERMAN*, ROBERT L. RIMSAY§, AND J. C. ORR§ *Medical Foundation of Buffalo, 73 High Street, Buffalo, NY 14203; and Memorial University of Newfoundland, St. John's, Newfoundland, Canada AlB 3V6 Communicated by Herbert A. Hauptman, July 18, 1991 (receivedfor review May 14, 1991) ABSTRACT The x-ray structure of a short-chain dehy- the substrate binding regions, offers further insight concern- drogenase, the bacterial holo 3a,20/3-hydroxysteroid dehydro- ing the significance of conserved residues and their possible genase (EC 1.1.1.53), is described at 2.6 A resolution. This roles in substrate specificity and overall enzyme function. enzyme is active as a tetramer and crystallizes with four identical subunits in the asymmetric unit. It has the a/( fold characteristic ofthe dinucleotide binding region. The fold ofthe MATERIALS AND METHODS rest of the subunit, the quarternary structure, and the nature The crystals, grown in the presence of 4 mM NADH, belong ofthe cofactor-enzyme interactions are, however, significantly to the space group P43212 having unit cell dimensions a = different from those observed in the long-chain dehydrogena- 106.2 A and c = 203.8 A and contain one full tetramer (106 ses. The architecture of the postulated active site is consistent kDa) in the asymmetric unit (13).
    [Show full text]
  • Glycosides Pharmacognosy Dr
    GLYCOSIDES PHARMACOGNOSY DR. KIBOI Glycosides Glycosides • Glycosides consist of a sugar residue covalently bound to a different structure called the aglycone • The sugar residue is in its cyclic form and the point of attachment is the hydroxyl group of the hemiacetal function. The sugar moiety can be joined to the aglycone in various ways: 1.Oxygen (O-glycoside) 2.Sulphur (S-glycoside) 3.Nitrogen (N-glycoside) 4.Carbon ( Cglycoside) • α-Glycosides and β-glycosides are distinguished by the configuration of the hemiacetal hydroxyl group. • The majority of naturally-occurring glycosides are β-glycosides. • O-Glycosides can easily be cleaved into sugar and aglycone by hydrolysis with acids or enzymes. • Almost all plants that contain glycosides also contain enzymes that bring about their hydrolysis (glycosidases ). • Glycosides are usually soluble in water and in polar organic solvents, whereas aglycones are normally insoluble or only slightly soluble in water. • It is often very difficult to isolate intact glycosides because of their polar character. • Many important drugs are glycosides and their pharmacological effects are largely determined by the structure of the aglycone. • The term 'glycoside' is a very general one which embraces all the many and varied combinations of sugars and aglycones. • More precise terms are available to describe particular classes. Some of these terms refer to: 1.the sugar part of the molecule (e.g. glucoside ). 2.the aglycone (e.g. anthraquinone). 3.the physical or pharmacological property (e.g. saponin “soap-like ”, cardiac “having an action on the heart ”). • Modern system of naming glycosides uses the termination '-oside' (e.g. sennoside). • Although glycosides form a natural group in that they all contain a sugar unit, the aglycones are of such varied nature and complexity that glycosides vary very much in their physical and chemical properties and in their pharmacological action.
    [Show full text]
  • 1970Qureshiocr.Pdf (10.44Mb)
    STUDY INVOLVING METABOLISM OF 17-KETOSTEROIDS AND 17-HYDROXYCORTICOSTEROIDS OF HEALTHY YOUNG MEN DURING AMBULATION AND RECUMBENCY A DISSERTATION SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN NUTRITION IN THE GRADUATE DIVISION OF THE TEXAS WOI\IIAN 'S UNIVERSITY COLLEGE OF HOUSEHOLD ARTS AND SCIENCES BY SANOBER QURESHI I B .Sc. I M.S. DENTON I TEXAS MAY I 1970 ACKNOWLEDGMENTS The author wishes to express her sincere gratitude to those who assisted her with her research problem and with the preparation of this dissertation. To Dr. Pauline Beery Mack, Director of the Texas Woman's University Research Institute, for her invaluable assistance and gui­ dance during the author's entire graduate program, and for help in the preparation of this dissertation; To the National Aeronautics and Space Administration for their support of the research project of which the author's study is a part; To Dr. Elsa A. Dozier for directing the author's s tucly during 1969, and to Dr. Kathryn Montgomery beginning in early 1970, for serving as the immeclia te director of the author while she was working on the completion of the investic;ation and the preparation of this dis- sertation; To Dr. Jessie Bateman, Dean of the College of Household Arts and Sciences, for her assistance in all aspects of the author's graduate program; iii To Dr. Ralph Pyke and Mr. Walter Gilchrist 1 for their ass is­ tance and generous kindness while the author's research program was in progress; To Mr. Eugene Van Hooser 1 for help during various parts of her research program; To Dr.
    [Show full text]
  • Genome-Wide Transcriptional Sequencing Identifies Novel Mutations in Metabolic Genes in Human Hepatocellular Carcinoma DAOUD M
    CANCER GENOMICS & PROTEOMICS 11 : 1-12 (2014) Genome-wide Transcriptional Sequencing Identifies Novel Mutations in Metabolic Genes in Human Hepatocellular Carcinoma DAOUD M. MEERZAMAN 1,2 , CHUNHUA YAN 1, QING-RONG CHEN 1, MICHAEL N. EDMONSON 1, CARL F. SCHAEFER 1, ROBERT J. CLIFFORD 2, BARBARA K. DUNN 3, LI DONG 2, RICHARD P. FINNEY 1, CONSTANCE M. CULTRARO 2, YING HU1, ZHIHUI YANG 2, CU V. NGUYEN 1, JENNY M. KELLEY 2, SHUANG CAI 2, HONGEN ZHANG 2, JINGHUI ZHANG 1,4 , REBECCA WILSON 2, LAUREN MESSMER 2, YOUNG-HWA CHUNG 5, JEONG A. KIM 5, NEUNG HWA PARK 6, MYUNG-SOO LYU 6, IL HAN SONG 7, GEORGE KOMATSOULIS 1 and KENNETH H. BUETOW 1,2 1Center for Bioinformatics and Information Technology, National Cancer Institute, Rockville, MD, U.S.A.; 2Laboratory of Population Genetics, National Cancer Institute, National Cancer Institute, Bethesda, MD, U.S.A.; 3Basic Prevention Science Research Group, Division of Cancer Prevention, National Cancer Institute, Bethesda, MD, U.S.A; 4Department of Biotechnology/Computational Biology, St. Jude Children’s Research Hospital, Memphis, TN, U.S.A.; 5Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea; 6Department of Internal Medicine, University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan, Korea; 7Department of Internal Medicine, College of Medicine, Dankook University, Cheon-An, Korea Abstract . We report on next-generation transcriptome Worldwide, liver cancer is the fifth most common cancer and sequencing results of three human hepatocellular carcinoma the third most common cause of cancer-related mortality (1). tumor/tumor-adjacent pairs.
    [Show full text]
  • The Effects of Exogenous ACTH on 5-3B-Hydroxysteroid Dehydrogenase Activity in the Embryonic Avian Adrenal Gland
    Loyola University Chicago Loyola eCommons Master's Theses Theses and Dissertations 1968 The Effects of Exogenous ACTH on 5-3b-hydroxysteroid Dehydrogenase Activity in the Embryonic Avian Adrenal Gland Grover Charles Ericson Loyola University Chicago Follow this and additional works at: https://ecommons.luc.edu/luc_theses Part of the Medicine and Health Sciences Commons Recommended Citation Ericson, Grover Charles, "The Effects of Exogenous ACTH on 5-3b-hydroxysteroid Dehydrogenase Activity in the Embryonic Avian Adrenal Gland" (1968). Master's Theses. 2264. https://ecommons.luc.edu/luc_theses/2264 This Thesis is brought to you for free and open access by the Theses and Dissertations at Loyola eCommons. It has been accepted for inclusion in Master's Theses by an authorized administrator of Loyola eCommons. For more information, please contact [email protected]. This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 License. Copyright © 1968 Grover Charles Ericson THE EFFECTS OF EXOGENOUS ACTH ON d -JB-HYDROXYSTEROID DEHYDROGENASE ACTIVITY IN THE EMBRYONIC AVIAN ADRENAL GLAND by Grover Charles Ericson A The.is Submitted to the Faculty ot the Graduate School of La.vo1. University in Partial Fulfillment ot the Requirements for the Degree ot Master ot Science February 1968 BIOGRAPHY Grover Charles Ericson was born in Oak Park, D.linois, on February 17. 1941. He •• graduated f'rom the Naperville COIIUlIW1ity High School, Naperville. D.l1nois in June, 19.59. He entered North Central College, Naperville. Illinois, in September, 19.59, and was awarded the Bachelor of Arts degree in June, 1964. While attending North Central College.
    [Show full text]
  • Chemistry, Spectroscopic Characteristics and Biological Activity of Natural Occurring Cardiac Glycosides
    IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB) ISSN: 2455-264X, Volume 2, Issue 6 Part: II (Sep. – Oct. 2016), PP 20-35 www.iosrjournals.org Chemistry, spectroscopic characteristics and biological activity of natural occurring cardiac glycosides Marzough Aziz DagerAlbalawi1* 1 Department of Chemistry, University college- Alwajh, University of Tabuk, Saudi Arabia Abstract:Cardiac glycosides are organic compounds containing two types namely Cardenolide and Bufadienolide. Cardiac glycosides are found in a diverse group of plants including Digitalis purpurea and Digitalis lanata (foxgloves), Nerium oleander (oleander),Thevetiaperuviana (yellow oleander), Convallariamajalis (lily of the valley), Urgineamaritima and Urgineaindica (squill), Strophanthusgratus (ouabain),Apocynumcannabinum (dogbane), and Cheiranthuscheiri (wallflower). In addition, the venom gland of cane toad (Bufomarinus) contains large quantities of a purported aphrodisiac substance that has resulted in cardiac glycoside poisoning.Therapeutic use of herbal cardiac glycosides continues to be a source of toxicity today. Recently, D.lanata was mistakenly substituted for plantain in herbal products marketed to cleanse the bowel; human toxicity resulted. Cardiac glycosides have been also found in Asian herbal products and have been a source of human toxicity.The most important use of Cardiac glycosides is its affects in treatment of cardiac failure and anticancer agent for several types of cancer. The therapeutic benefits of digitalis were first described by William Withering in 1785. Initially, digitalis was used to treat dropsy, which is an old term for edema. Subsequent investigations found that digitalis was most useful for edema that was caused by a weakened heart. Digitalis compounds have historically been used in the treatment of chronic heart failure owing to their cardiotonic effect.
    [Show full text]
  • Quinidine, Beta-Blockers, Diphenylhydantoin, Bretylium *
    Pharmacology of Antiarrhythmics: Quinidine, Beta-Blockers, Diphenylhydantoin, Bretylium * ALBERT J. WASSERMAN, M.D. Professor of Medicine, Chairman, Division of Clinical Pharmacology, Medical College of Virginia, Health Sciences Division of Virginia Commonwealth University, Richmond, Virginia JACK D. PROCTOR, M.D. Assistant Professor of Medicine, Medical College of Virginia, Health Sciences Division of Virginia Commonwealth University, Richmond, Virginia The electrophysiologic effects of the antiar­ adequate, controlled clinical comparisons are virtu­ rhythmic drugs, presented elsewhere in this sym­ ally nonexistent. posium, form only one of the bases for the selec­ A complete presentation of the non-electro­ tion of a therapeutic agent in any given clinical physiologic pharmacology would include the follow­ situation. The final choice depends at least on the ing considerations: following factors: 1. Absorption and peak effect times 1. The specific arrhythmia 2. Biotransformation 2. Underlying heart disease, if any 3. Rate of elimination or half-life (t1d 3. The degree of compromise of the circula­ 4. Drug interactions tion, if any 5. Toxicity 4. The etiology of the arrhythmia 6. Clinical usefulness 5. The efficacy of the drug for that arrhythmia 7. Therapeutic drug levels due to that etiology 8. Dosage schedules 6. The toxicity of the drug, especially in the As all of the above data cannot be presented in given patient with possible alterations in the limited space available, only selected items will volume of distribution, biotransformation, be discussed. Much of the preceding information and excretion is available, however, in standard texts ( 1 7, 10). 7. The electrophysiologic effects of the drug (See Addendum 1) 8. The routes and frequency of administration Quinidine.
    [Show full text]
  • Pharmacokinetics, Bioavailability and Serum Levels of Cardiac Glycosides
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE JACCVol. 5, No.5 provided by Elsevier - Publisher43A Connector May 1985:43A-50A Pharmacokinetics, Bioavailability and Serum Levels of Cardiac Glycosides THOMAS W. SMITH, MD, FACC Boston. Massachusetts Digoxin, the cardiac glycoside most frequently used in bioavailability of digoxin is appreciably less than that of clinical practice in the United States, can be givenorally digitoxin, averaging about two-thirds to three-fourths of or intravenously and has an excretory half-life of 36 to the equivalent dose given intravenously in the case of 48 hours in patients with serum creatinine and blood currently available tablet formulations. Recent studies urea nitrogen values in the normal range. Sincethe drug have shown that gut ftora of about 10% of patients re­ is excreted predominantly by the kidney, the half-life is duce digoxin to a less bioactive dihydro derivative. This prolonged progressivelywithdiminishingrenal function, process is sensitiveto antibiotic administration, creating reaching about 5 days on average in patients who are the potential for important interactions among drugs. essentially anephric. Serum protein binding of digoxin Serum or plasma concentrations of digitalis glycosides is only about 20%, and differs markedly in this regard can be measured by radioimmunoassay methods that are from that of digitoxin, which is 97% bound by serum nowwidelyavailable, but knowledgeofserum levelsdoes albumin at usual therapeutic levels. Digitoxin is nearly not substitute for a sound working knowledge of the completely absorbed from the normal gastrointestinal clinical pharmacology of the preparation used and care­ tract and has a half-lifeaveraging 5 to 6 days in patients ful patient follow-up.
    [Show full text]
  • Malaysian STATISTICS on MEDICINE 2005
    Malaysian STATISTICS ON MEDICINE 2005 Edited by: Sameerah S.A.R Sarojini S. With contributions from Goh A, Faridah A, Rosminah MD, Radzi H, Azuana R, Letchuman R, Muruga V, Zanariah H, Oiyammal C, Sim KH, Fong AYY, Tamil Selvan M, Basariah N, Hooi LS, Zaki Morad, Fadilah O, Lim V.K.E., Tan KK, Biswal BM, Lim YS, Lim GCC, Mohammad Anwar H.A, Ahmad Sabri O, Mary SC, Marzida M, Benjamin Chan TM, Suarn Singh, Zoriah A, Noor Ratna N , Abdul Razak M, Norzila Z, Shamsinah H A publication of the Pharmaceutical Services Division and the Clinical Research Centre Ministry of Health Malaysia Malaysian Statistics On Medicine 22005005 Edited by: Sameerah S.A.R Sarojini S. With contributions from Goh A, Faridah A, Rosminah MD, Radzi H, Azuana R, Letchuman R, Muruga V, Zanariah H, Oiyammal C, Sim KH, Fong AYY, Tamil Selvan M, Basariah N, Hooi LS, Zaki Morad, Fadilah O, Lim V.K.E., Tan KK, Biswal BM, Lim YS, Lim GCC, Mohammad Anwar H.A, Ahmad Sabri O, Mary SC, Marzida M, Benjamin Chan TM, Suarn Singh, Zoriah A, Noor Ratna N , Abdul Razak M, Norzila Z, Shamsinah H A publication of the Pharmaceutical Services Division and the Clinical Research Centre Ministry of Health Malaysia Malaysian Statistics On Medicine 2005 April 2007 © Ministry of Health Malaysia Published by: The National Medicines Use Survey Pharmaceutical Services Division Lot 36, Jalan Universiti 46350 Petaling Jaya Selangor, Malaysia Tel. : (603) 4043 9300 Fax : (603) 4043 9400 e-mail : [email protected] Web site : http://www.crc.gov.my/nmus This report is copyrighted.
    [Show full text]
  • Pharmaceutical Services Division and the Clinical Research Centre Ministry of Health Malaysia
    A publication of the PHARMACEUTICAL SERVICES DIVISION AND THE CLINICAL RESEARCH CENTRE MINISTRY OF HEALTH MALAYSIA MALAYSIAN STATISTICS ON MEDICINES 2008 Edited by: Lian L.M., Kamarudin A., Siti Fauziah A., Nik Nor Aklima N.O., Norazida A.R. With contributions from: Hafizh A.A., Lim J.Y., Hoo L.P., Faridah Aryani M.Y., Sheamini S., Rosliza L., Fatimah A.R., Nour Hanah O., Rosaida M.S., Muhammad Radzi A.H., Raman M., Tee H.P., Ooi B.P., Shamsiah S., Tan H.P.M., Jayaram M., Masni M., Sri Wahyu T., Muhammad Yazid J., Norafidah I., Nurkhodrulnada M.L., Letchumanan G.R.R., Mastura I., Yong S.L., Mohamed Noor R., Daphne G., Kamarudin A., Chang K.M., Goh A.S., Sinari S., Bee P.C., Lim Y.S., Wong S.P., Chang K.M., Goh A.S., Sinari S., Bee P.C., Lim Y.S., Wong S.P., Omar I., Zoriah A., Fong Y.Y.A., Nusaibah A.R., Feisul Idzwan M., Ghazali A.K., Hooi L.S., Khoo E.M., Sunita B., Nurul Suhaida B.,Wan Azman W.A., Liew H.B., Kong S.H., Haarathi C., Nirmala J., Sim K.H., Azura M.A., Asmah J., Chan L.C., Choon S.E., Chang S.Y., Roshidah B., Ravindran J., Nik Mohd Nasri N.I., Ghazali I., Wan Abu Bakar Y., Wan Hamilton W.H., Ravichandran J., Zaridah S., Wan Zahanim W.Y., Kannappan P., Intan Shafina S., Tan A.L., Rohan Malek J., Selvalingam S., Lei C.M.C., Ching S.L., Zanariah H., Lim P.C., Hong Y.H.J., Tan T.B.A., Sim L.H.B, Long K.N., Sameerah S.A.R., Lai M.L.J., Rahela A.K., Azura D., Ibtisam M.N., Voon F.K., Nor Saleha I.T., Tajunisah M.E., Wan Nazuha W.R., Wong H.S., Rosnawati Y., Ong S.G., Syazzana D., Puteri Juanita Z., Mohd.
    [Show full text]
  • A Phytochemical Investigation of Two South African Plants: Strophanthus Speciosus and Eucomis Montana
    UNIVERSITY OF KWAZULU-NATAL A PHYTOCHEMICAL INVESTIGATION OF TWO SOUTH AFRICAN PLANTS WITH THE SCREENING OF EXTRACTIVES FOR BIOLOGICAL ACTIVITY By ANDREW BRUCE GALLAGHER B. Sc Honours (cum laude) (UKZN) Submitted in fulfilment of the requirements for the degree of Master of Science In the School of Biological and Conservation Science and The School of Chemistry University of KwaZulu-Natal, Howard College campus Durban South Africa 2006 ABSTRACT Two South African medicinal plants, Strophanthus speciosus and Eucomis montana, were investigated phytochemically. From Strophanthus speciosus a cardenolide, neritaloside, was isolated, whilst Eucomis montana yielded three homoisoflavanones, 3,9- dihydroeucomin, 4' -demethyl-3,9-dihydroeucomin, and 4' -demethyl-5-0-methyl-3,9- dihydroeucomin. The structures were elucidated on the basis of spectroscopic data. The homoisoflavanones were screened for anti-inflammatory activity usmg a chemiluminescent luminol assay, modified for microplate usage. All of the homoisoflavanones exhibited good inhibition of chemiluminescence, with ICso values for 3,9-dihydroeucomin, 4' -demethyl-3,9-dihydroeucomin, and 4' -demethyl-5-0-methyl-3,9- dihydroeucomin being 14mg/mL, 7 mg/mL, and 13mg/mL respectively. The ICso value of 4'-demethyl-3,9-dihydroeucomin compared favourably with the NSAID control (meloxicam), which had an ICso of 6mg/mL. Neritaloside was not screened for biological activity as the yield of 14.4mg was insufficient for the muscle-relaxant screen for which it was intended. An assay for antioxidant/free radical scavenging activity was also performed. All the compounds had excellent antioxidant/free radical scavenging activity, with percentage inhibition of the reaction being 92%, 96%, and 94% for 3,9-dihydroeucomin, 4'­ demethyl-3,9-dihydroeucomin, and 4'-demethyl-5-0-methyl-3,9-dihydroeucomin respectively at a concentration of 10mg/mL.
    [Show full text]