Intravenous sodium bicarbonate

Intravenous sodium bicarbonate, also known as sodium hydrogen carbonate, is a medication primarily used to treat severe metabolic acidosis.[1] For this purpose it is generally only used when the pH is less than 7.1 and when the underlying cause is either diarrhea, vomiting, or the kidneys.[2] Other uses include high blood potassium, tricyclic antidepressant overdose, and cocaine toxicity as well as a number of other poisonings.[1][3][4] It is given by injection into a vein. [2]

See also: Sodium bicarbonate

Intravenous sodium bicarbonate
Clinical data
Trade namesmany
Other namessodium hydrogen carbonate, monosodium carbonate
AHFS/Drugs.comMonograph
MedlinePlusa682001
License data
Routes of
administration		intravenous
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability100% (intravenous)
Identifiers
  • sodium hydrogen carbonate
CAS Number
PubChem CID
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
Chemical and physical data
FormulaCHNaO3
Molar mass84.01 g·mol−1
3D model (JSmol)
  • C(=O)(O)[O-].[Na+]
  • InChI=1S/CH2O3.Na/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
  • Key:UIIMBOGNXHQVGW-UHFFFAOYSA-M
 ☒NcheckY (what is this?)  (verify)

Side effects may include low blood potassium, high blood sodium, and swelling.[1][4] It is not recommended in people with low blood calcium.[5] Sodium bicarbonate is in the alkalinizing family of medication.[5] It works by increasing blood bicarbonate, which buffers excess hydrogen ion and raises blood pH.[5]

Commercial production of sodium bicarbonate began between 1791 and 1823.[6] Intravenous medical use began around the 1950s.[4] It is on the World Health Organization's List of Essential Medicines.[7] Sodium bicarbonate is available as a generic medication.[5]

Medical uses

Intravenous sodium bicarbonate is indicated in the treatment of metabolic acidosis, such as can occur in severe kidney disease, diabetic ketoacidosis, circulatory insufficiency, extracorporeal circulation of blood, in hemolysis requiring alkalinization of the urine to avoid nephrotoxicity of blood pigments, and certain drug intoxications, such as by barbiturate overdose, salicylate poisoning, tricyclic antidepressant overdose or methanol poisoning.[8] In addition, sodium bicarbonate is indicated in severe diarrhea, where large amounts of bicarbonate may be lost.[8] However, overall treatment should also strive to treat the underlying cause of the acidosis, such as giving insulin in case of diabetic ketoacidosis.[8]

Dhaka fluid
Dhaka fluid[9]
Concentration in millimoles per litre
Sodium Chloride85 mM
Potassium Chloride13 mM
Sodium bicarbonate48 mM
Solvent1 Litre of water or 5 percent glucose solution.

Dhaka fluid is one of the IV fluids used in intravenous rehydration therapy which has sodium bicarbonate content in it.[9] Used as a resuscitative fluid in burn management.[10]

Contraindications

Intravenous sodium bicarbonate is contraindicated in patients who are losing chloride, such as by vomiting.[8]

Because of its sodium content, intravenous sodium bicarbonate should be used with great care, if at all, in patients with congestive heart failure and severe chronic kidney disease, where low sodium intake is strongly indicated to prevent sodium retention.[8] By similar rationale, intravenous sodium bicarbonate should be given with caution to patients receiving corticosteroids.[8]

Side effects

Extravasation of intravenous sodium bicarbonate has been reported to cause chemical cellulitis because of its alkalinity, resulting in tissue necrosis, ulceration and/or sloughing at the site of infiltration. This condition is managed by prompt elevation of the part, warmth and local injection of lidocaine or hyaluronidase.[8]

Interactions

Norepinephrine and dobutamine cannot be used as additives in an intravenous sodium bicarbonate solution.[8]

Intravenous sodium bicarbonate should not be mixed with calcium, as they may precipitate, except where compatibility has been previously established for the preparations at hand.[8]

Overdosing

Overdose of intravenous sodium bicarbonate results in solute and/or fluid overload, potentially leading to edema, including pulmonary edema.[8] Also, it can cause metabolic alkalosis (with signs including muscular twitchings, irritability and tetany).[8] Hypernatremia is also possible.[8] Repeated fractional doses and frequent monitoring by laboratory tests are recommended to minimize the possibility of overdosing.[8]

Rapid administration (equal to or exceeding 10 mL/min) of intravenous sodium bicarbonate into neonates and children under two years of age may produce hypernatremia, resulting in a decrease in cerebrospinal fluid pressure and, possibly, intracranial hemorrhage. Therefore, the rate of administration to such patients should not exceed 8 mEq/kg/day, unless a very strong indication is present.[8]

Composition

It is administered as a hypertonic solution of sodium bicarbonate, most commonly in concentrations of 4.2%, 5.0%, 7.5% or 8.4%.[8]

The solutions generally contain no antimicrobial agent or other added buffer.[8]

Mechanism of action

After injection, intravenous sodium bicarbonate dissociates to provide sodium (Na+) and bicarbonate (HCO3−) anions. Bicarbonate anions can consume hydrogen ions (H+) and thereby be converted to carbonic acid (H2CO3), which can subsequently be converted to water (H2O) and carbon dioxide (CO2) which can be excreted by the lungs.[8]

Society and culture

The Italian physician Tullio Simoncini has claimed that intravenous sodium bicarbonate is an effective cancer therapy. This is rejected by mainstream medicine.[11] Simoncini has been imprisoned twice for culpable manslaughter of people affected by cancer.[12][13]

References
  1. World Health Organization (2009). Stuart MC, Kouimtzi M, Hill SR (eds.). WHO Model Formulary 2008. World Health Organization. pp. 489–492. hdl:10665/44053. ISBN 9789241547659.
  2. British National Formulary: BNF 69 (69th ed.). British Medical Association. 2015. p. 684. ISBN 9780857111562.
  3. Bruccoleri RE, Burns MM (March 2016). "A Literature Review of the Use of Sodium Bicarbonate for the Treatment of QRS Widening". Journal of Medical Toxicology. 12 (1): 121–129. doi:10.1007/s13181-015-0483-y. PMC 4781799. PMID 26159649.
  4. Liebelt EL (2014). "Sodium Bicarbonate". In Dart RC (ed.). Medical Toxicology. Lippincott Williams & Wilkins. p. 257. ISBN 9780781728454. Archived from the original on 16 January 2017.
  5. "Sodium Bicarbonate". The American Society of Health-System Pharmacists. Archived from the original on 18 January 2017. Retrieved 8 January 2017.
  6. Ihde AJ (1970). "Chemical Industry I: The Nineteenth Century". The Development of Modern Chemistry. Courier Corporation. p. 447. ISBN 9780486642352. Archived from the original on 16 January 2017.
  7. World Health Organization (2019). World Health Organization model list of essential medicines: 21st list 2019. Geneva: World Health Organization. hdl:10665/325771. WHO/MVP/EMP/IAU/2019.06. License: CC BY-NC-SA 3.0 IGO.
  8. "Sodium Bicarbonate, Dosage Form: injection, solution by General Injectables & Vaccines, Inc". Drugs.com. March 2011. Archived from the original on 3 March 2011.
  9. Tripathi KD (2015). Essentials of Medical Pharmacology (Seventh ed.). New Delhi: Jaypee Brothers Medical Publishers (P) Ltd. p. 679. ISBN 978-93-5025-937-5.
  10. Shahidul BM (December 2003). "Fluid Resuscitation of Burn Patients in Bangladesh - "Dhaka Fluid Therapy", An Alternative Approach". Annals of Burns and Fire Disaster. 26: 173–181. S2CID 2902069.
  11. "Sodium Bicarbonate". American Cancer Society. Archived from the original on 3 February 2014. Retrieved 20 March 2014.
  12. Lavinia G (21 May 2006). "Medico condannato: omicidio colposo" [Doctor convicted: manslaughter]. Corriere della Sera (in Italian). Milan.
  13. "Doc gets 5 yrs for treating cancer". ANSA.it. 15 January 2018.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.