Magnesium citrate

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Magnesium citrate
Magnesiumhydrogencitrat V1.svg
Names
IUPAC name
Magnesium 2-hydroxypropane-1,2,3-tricarboxylate
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.121.319 OOjs UI icon edit-ltr-progressive.svg
EC Number
  • 231-923-9
PubChem CID
UNII
  • InChI=1S/2C6H8O7.3Mg/c2*7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h2*13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;/q;;3*+2/p-6 Yes check.svgY
    Key: PLSARIKBYIPYPF-UHFFFAOYSA-H Yes check.svgY
  • C(C(=O)O)C(CC(=O)[O-])(C(=O)[O-])O.[Mg+2]
Properties
C6H6MgO7
Molar mass 214.412 g·mol−1
20 g/100ml
Pharmacology
A06AD19 ( WHO ) A12CC04 ( WHO ), B05CB03 ( WHO )
Related compounds
Related salts
Magnesium citrate (3:2)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Magnesium citrate is a magnesium preparation in salt form with citric acid in a 1:1 ratio (1 magnesium atom per citrate molecule). It contains 11.23% magnesium by weight.

The name "magnesium citrate" is ambiguous and sometimes may refer to other salts such as trimagnesium dicitrate which has a magnesium:citrate ratio of 3:2, or monomagnesium dicitrate with a ratio of 1:2, or a mix of two or three of the salts of magnesium and citric acid.

Magnesium citrate (sensu lato) is used medicinally as a saline laxative and to completely empty the bowel prior to a major surgery or colonoscopy. It is available without a prescription, both as a generic and under various brand names. It is also used in the pill form as a magnesium dietary supplement.

As a food additive, magnesium citrate is used to regulate acidity and is known as E number E345.

Mechanism of action

Magnesium citrate works by attracting water through the tissues by a process known as osmosis. Once in the intestine, it can attract enough water into the intestine to induce defecation. [1] [2] The additional water stimulates bowel motility. This means it can also be used to treat rectal and colon problems. Magnesium citrate functions best on an empty stomach, and should always be followed with a full (eight ounce or 250 ml) glass of water or juice to help counteract water loss and aid in absorption. Magnesium citrate solutions generally produce bowel movement in one-half to three hours. [3]

There is an exothermic heat generation when water is added, which is "most disagreeable when taken orally." [4] [ better source needed ]

Use and dosage

The maximum upper tolerance limit (UTL) for magnesium in supplement form for adults is 350 mg of elemental magnesium per day, according to the National Institutes of Health (NIH). [5] In addition, according to the NIH, total dietary requirements for magnesium from all sources (in other words, food and supplements) is 320–420 mg of elemental magnesium per day, though there is no UT for dietary magnesium.

Laxative

Magnesium citrate is used as a laxative agent. [6] [7] It is not recommended for use in children and infants two years of age or less. [8]

Magnesium deficiency treatment

Although less common, as a magnesium supplement the citrate form is sometimes used because it is believed to be more bioavailable than other common pill forms, such as magnesium oxide. [9] [ citation needed ] But, according to one study, magnesium gluconate was found to be marginally more bioavailable than even magnesium citrate. [10]

Potassium-magnesium citrate, as a supplement in pill form, is useful for the prevention of kidney stones. [11]

Side effects

Magnesium citrate is generally not a harmful substance, but care should be taken by consulting a healthcare professional if any adverse health problems are suspected or experienced. Extreme magnesium overdose can result in serious complications such as slow heart beat, low blood pressure, nausea, drowsiness, etc. If severe enough, an overdose can even result in coma or death. [12] However, a moderate overdose will be excreted through the kidneys, unless one has serious kidney problems. Rectal bleeding or failure to have a bowel movement after use could be signs of a serious condition.

See also

Related Research Articles

<span class="mw-page-title-main">Magnesium</span> Chemical element, symbol Mg and atomic number 12

Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals it occurs naturally only in combination with other elements and it almost always has an oxidation state of +2. It reacts readily with air to form a thin passivation coating of magnesium oxide that inhibits further corrosion of the metal. The free metal burns with a brilliant-white light. The metal is obtained mainly by electrolysis of magnesium salts obtained from brine. It is less dense than aluminium and is used primarily as a component in strong and lightweight alloys that contain aluminium.

<span class="mw-page-title-main">Kidney stone disease</span> Formation of mineral stones in the urinary tract

Kidney stone disease, also known as nephrolithiasis or urolithiasis, is a crystallopathy where a solid piece of material develops in the urinary tract. Kidney stones typically form in the kidney and leave the body in the urine stream. A small stone may pass without causing symptoms. If a stone grows to more than 5 millimeters, it can cause blockage of the ureter, resulting in sharp and severe pain in the lower back or abdomen. A stone may also result in blood in the urine, vomiting, or painful urination. About half of people who have had a kidney stone are likely to have another within ten years.

<span class="mw-page-title-main">Constipation</span> Bowel dysfunction

Constipation is a bowel dysfunction that makes bowel movements infrequent or hard to pass. The stool is often hard and dry. Other symptoms may include abdominal pain, bloating, and feeling as if one has not completely passed the bowel movement. Complications from constipation may include hemorrhoids, anal fissure or fecal impaction. The normal frequency of bowel movements in adults is between three per day and three per week. Babies often have three to four bowel movements per day while young children typically have two to three per day.

<span class="mw-page-title-main">Laxative</span> Agents that relax and loosen the bowels and stools

Laxatives, purgatives, or aperients are substances that loosen stools and increase bowel movements. They are used to treat and prevent constipation.

<span class="mw-page-title-main">Magnesium sulfate</span> Chemical compound with formula MgSO4

Magnesium sulfate or magnesium sulphate (in English-speaking countries other than the US) is a chemical compound, a salt with the formula MgSO4, consisting of magnesium cations Mg2+ (20.19% by mass) and sulfate anions SO2−4. It is a white crystalline solid, soluble in water but not in ethanol.

<span class="mw-page-title-main">Colonoscopy</span> Endoscopic examination of the bowel

Colonoscopy or coloscopy is the endoscopic examination of the large bowel and the distal part of the small bowel with a CCD camera or a fiber optic camera on a flexible tube passed through the anus. It can provide a visual diagnosis and grants the opportunity for biopsy or removal of suspected colorectal cancer lesions.

<span class="mw-page-title-main">Sigmoidoscopy</span> Medical examination of the large intestine from the rectum to the sigmoid colon

Sigmoidoscopy is the minimally invasive medical examination of the large intestine from the rectum through to the nearest part of the colon, the sigmoid colon. There are two types of sigmoidoscopy: flexible sigmoidoscopy, which uses a flexible endoscope, and rigid sigmoidoscopy, which uses a rigid device. Flexible sigmoidoscopy is generally the preferred procedure. A sigmoidoscopy is similar to, but not the same as, a colonoscopy. A sigmoidoscopy only examines up to the sigmoid, the most distal part of the colon, while colonoscopy examines the whole large bowel.

<span class="mw-page-title-main">Calcium citrate</span> Chemical compound

Calcium citrate is the calcium salt of citric acid. It is commonly used as a food additive (E333), usually as a preservative, but sometimes for flavor. In this sense, it is similar to sodium citrate. Calcium citrate is also found in some dietary calcium supplements. Calcium makes up 24.1% of calcium citrate (anhydrous) and 21.1% of calcium citrate (tetrahydrate) by mass. The tetrahydrate occurs in nature as the mineral Earlandite.

<span class="mw-page-title-main">Diverticulosis</span> Condition of the wall of the intestine

Diverticulosis is the condition of having multiple pouches (diverticula) in the colon that are not inflamed. These are outpockets of the colonic mucosa and submucosa through weaknesses of muscle layers in the colon wall. Diverticula do not cause symptoms in most people. Diverticular disease occurs when diverticula become clinically inflamed, a condition known as diverticulitis.

<span class="mw-page-title-main">Fecal impaction</span> Medical condition

A fecal impaction or an impacted bowel is a solid, immobile bulk of feces that can develop in the rectum as a result of chronic constipation. Fecal impaction is a common result of neurogenic bowel dysfunction and causes immense discomfort and pain. Its treatment includes laxatives, enemas, and pulsed irrigation evacuation (PIE) as well as digital removal. It is not a condition that resolves without direct treatment.

Magnesium deficiency is an electrolyte disturbance in which there is a low level of magnesium in the body. It can result in multiple symptoms. Symptoms include tremor, poor coordination, muscle spasms, loss of appetite, personality changes, and nystagmus. Complications may include seizures or cardiac arrest such as from torsade de pointes. Those with low magnesium often have low potassium.

<span class="mw-page-title-main">Bisacodyl</span> Laxative

Bisacodyl (INN) is an organic compound that is used as a stimulant laxative drug. It works directly on the colon to produce a bowel movement. It is typically prescribed for relief of episodic and chronic constipation and for the management of neurogenic bowel dysfunction, as well as part of bowel preparation before medical examinations, such as for a colonoscopy.

<span class="mw-page-title-main">Whole bowel irrigation</span> Medical process

Whole bowel irrigation (WBI) is a medical process involving the rapid administration of large volumes of an osmotically balanced macrogol solution, either orally or via a nasogastric tube, to flush out the entire gastrointestinal tract.

<span class="mw-page-title-main">Sodium picosulfate</span> Chemical compound

Sodium picosulfate is a contact stimulant laxative used as a treatment for constipation or to prepare the large bowel before colonoscopy or surgery.

<span class="mw-page-title-main">Magnesium gluconate</span> Chemical compound

Magnesium gluconate is a compound with formula MgC12H22O14. It is the magnesium salt of gluconic acid.

Magnesium aspartate, the chelated magnesium salt of aspartic acid, it is a mineral supplement.

Calcium acetate/magnesium carbonate is a fixed-dose combination drug that contains 110 mg calcium and 60 mg magnesium ions and is indicated as a phosphate binder for dialysis patients with hyperphosphataemia. It is registered by Fresenius Medical Care under the trade names Renepho (Belgium) and OsvaRen.

Magnesium salts are available as a medication in a number of formulations. They are used to treat magnesium deficiency, low blood magnesium, eclampsia, and several other conditions. Magnesium is an essential nutrient.

<span class="mw-page-title-main">Calcium supplement</span> Dietary mineral supplement

Calcium supplements are salts of calcium used in a number of conditions. Supplementation is generally only required when there is not enough calcium in the diet. By mouth they are used to treat and prevent low blood calcium, osteoporosis, and rickets. By injection into a vein they are used for low blood calcium that is resulting in muscle spasms and for high blood potassium or magnesium toxicity.

Alkali citrate is an inhibitor of kidney stones. It is used to increase urine citrate levels - this prevents calcium oxalate stones by binding to calcium and inhibiting its binding to oxalate. It is also used to increase urine pH - this prevents uric acid stones and cystine stones.

References

  1. Song, Ki Hwan; Suh, Wu Seok; Jeong, Jin Sik; Kim, Dong Sik; Kim, Sang Woo; Kwak, Dong Min; Hwang, Jong Seong; Kim, Hyun Jin; Park, Man Woo; Shim, Min Chul; Koo, Ja-Il (October 2014). "Effectiveness of Sodium Picosulfate/Magnesium Citrate (PICO) for Colonoscopy Preparation". Annals of Coloproctology. 30 (5): 222–227. doi:10.3393/ac.2014.30.5.222. ISSN   2287-9714. PMC   4213938 . PMID   25360429.
  2. Ogbru, Omudhome, PharmD (2 December 2021). "Magnesium Citrate". medicinenet.com.{{cite web}}: CS1 maint: multiple names: authors list (link)
  3. "Magnesium Citrate". WebMD. Retrieved 31 August 2017.
  4. USpatent 4959222,Karl J. Nadland et al,"Magnesium additive for nutrients, feed, and medicaments",issued 1990-Sept-25
  5. "Magnesium". ods.od.nih.gov. US: Office of Dietary Supplements, National Institutes of Health.
  6. "Magnesium Citrate: MedlinePlus Drug Information". medlineplus.gov.
  7. "Magnesium Citrate – an overview | ScienceDirect Topics". sciencedirect.com.
  8. "magnesium_citrate-oral" at medicinenet.com
  9. Schuchardt, Jan Philipp; Hahn, Andreas (2017). "Intestinal Absorption and Factors Influencing Bioavailability of Magnesium- An Update". Current Nutrition & Food Science. 13 (4): 260–278. doi:10.2174/1573401313666170427162740. PMC   5652077 . PMID   29123461 via Bentham Science.
  10. Coudray, C; Rambeau, M; Feillet-Coudray, C; et al. (December 2005). "Study of magnesium bioavailability from ten organic and inorganic Mg salts in Mg-depleted rats using a stable isotope approach". Magnesium Research . 18 (4): 215–23. PMID   16548135.
  11. Ettinger, B; Pak, CY; Citron, JT; Thomas, C; Adams-Huet, B; Vangessel, A (December 1997). "Potassium-magnesium citrate is an effective prophylaxis against recurrent calcium oxalate nephrolithiasis". J Urol . 158 (6): 2069–73. doi:10.1016/S0022-5347(01)68155-2. PMID   9366314.
  12. magnesium citrate. Cerner Multum. Drugs.com. 12 April 2009.