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Domperidone, sold under the brand name Motilium among others, is a dopamine antagonist medication which is used to treat nausea and vomiting and certain gastrointestinal problems like gastroparesis (delayed gastric emptying). It raises the level of prolactin in the human body and is used off label to induce and promote breast milk production.<ref name="mechanismforantiemetic">Template:Cite journal</ref><ref name="pmid10332535">Template:Cite journal</ref> It may be taken by mouth or rectally.<ref name="mechanismforantiemetic"/><ref name="ema" /><ref name="mhra">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Side effects may include headache, anxiety, dry mouth, abdominal cramps, diarrhea, and elevated prolactin levels.<ref name=BNF79>Template:Cite book</ref><ref name="mechanismforantiemetic"/><ref name="pmid10332535" /><ref name="Henderson2003">Template:Cite journal</ref> Secondary to increased prolactin levels, breast changes, milk outflow, menstrual irregularities, and hypogonadism can occur.<ref name="mechanismforantiemetic"/><ref name="pmid10332535" /><ref name="Henderson2003" /> Domperidone may also cause QT prolongation and has rarely been associated with serious cardiac complications such as sudden cardiac death.<ref name="pmid26649742" /><ref name="pmid20394569" /><ref name="pmid24147629" /><ref name="pmid26117678" /> However, the risks are small and occur more with high doses.<ref name="pmid26117678" /><ref name="MarziWeitz2015" /> Domperidone acts as a peripherally selective antagonist of the dopamine D2 and D3 receptors.<ref name="mechanismforantiemetic"/><ref name="pmid10332535" /> Due to its low entry into the brain, the side effects of domperidone are different from those of other dopamine receptor antagonists like metoclopramide and it produces little in the way of central nervous system adverse effects.<ref name="mechanismforantiemetic"/><ref name="pmid10332535"/> However, domperidone can nonetheless increase prolactin levels as the pituitary gland is outside of the blood–brain barrier.<ref name="pmid25475074">Template:Cite journal</ref>

Domperidone was discovered in 1974 and was introduced for medical use in 1979.<ref name="pmid18507654" /><ref name="dd" /><ref name="WilliamAndrewPublishing2013" /> It was developed by Janssen Pharmaceutica.<ref name="pmid18507654" /><ref name="dd" /> Domperidone is available over-the-counter in many countries, for instance in Europe and elsewhere throughout the world.<ref name="FaisVermiglio2015" /><ref name="mechanismforantiemetic"/> It is not approved for use in the United States.<ref name="FDA 20231212" /><ref name="pmid15451832" /><ref name="mechanismforantiemetic"/> However, it is available in the United States for people with severe and treatment-refractory gastrointestinal motility problems under an expanded access individual-patient investigational new drug application.<ref name="FDA 20231212">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> An analogue of domperidone called deudomperidone is under development for potential use in the United States and other countries.<ref name="AdisInsight-Deudomperidone">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name="pmid33471485">Template:Cite journal</ref><ref name="WoMcCallumGonzalez2021">Template:Cite book</ref>

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Medical usesEdit

Nausea and vomitingEdit

There is some evidence that domperidone has antiemetic activity.<ref name="mechanismforantiemetic"/> It is recommended by the Canadian Headache Society for treatment of nausea associated with acute migraine.<ref>Template:Cite journal</ref>

GastroparesisEdit

Gastroparesis is a medical condition characterised by delayed emptying of the stomach when there is no mechanical gastric outlet obstruction. Its cause is most commonly idiopathic, a diabetic complication or a result of abdominal surgery. The condition causes nausea, vomiting, fullness after eating, early satiety (feeling full before the meal is finished), abdominal pain, and bloating. Domperidone can be used to increase the transit of food through the stomach by increasing gastrointestinal peristalsis and hence to treat gastroparesis.<ref name="mechanismforantiemetic"/><ref name="pmid10332535" /> It may be useful in idiopathic and diabetic gastroparesis.<ref>Template:Cite journal</ref><ref name="pmid9663360">Template:Cite journal</ref> However, increased rate of gastric emptying induced by drugs like domperidone does not always correlate well with relief of symptoms.<ref>Template:Cite journal</ref>

LactationEdit

Domperidone is used off-label in some countries to stimulate lactation or enhance breast milk production, but, as of December 2023, it is not approved for that purpose in any country, and is not approved for use in humans in the United States.<ref name="FDA 20231212" /><ref name="FDADomperidone">{{#invoke:citation/CS1|citation |CitationClass=web }} Template:PD-notice</ref> Domperidone acts as a peripheral dopamine antagonist and is hypothesized to stimulate prolactin secretion, with a 2003 study supporting that hypothesis.<ref name="pmid15451832">Template:Cite journal</ref>

A 2018 meta-analysis of five randomized controlled trials found that domperidone resulted in a moderate increase of in breast milk volume for mothers of preterm infants with insufficient milk supply. The analysis also indicated that domperidone was well tolerated with no significant difference in maternal adverse events compared to placebo.<ref name="t992">Template:Cite journal</ref> Domperidone has no officially established dosage for increasing milk supply, but most published studies have used 10 mg three times daily for 4 to 10 days (30 mg per day).<ref name="NIH">Template:Cite journal</ref>

The US Food and Drug Administration (FDA) has expressed concerns about serious adverse side effects and concerns about its effectiveness.<ref name="FDADomperidone"/> The FDA identified serious cardiac adverse events associated with domperidone use in lactating individuals, including arrhythmias, cardiac arrest, and sudden death. Additionally, discontinuation or tapering of domperidone has been linked to severe neuropsychiatric adverse events such as agitation, anxiety, and suicidal ideation. Because of these risks, the FDA strongly cautions against the use of domperidone to enhance lactation.<ref name="FDADomperidone"/>

A review by Health Canada also found a link between the sudden discontinuation or tapering of domperidone when used off-label for lactation, and psychiatric withdrawal events, particularly daily doses greater than the maximum recommended dose of 30 mg per day.<ref name="HealthCanada">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> A 2021 study found that postpartum usage of domperidone increased across five Canadian provinces from 2004 and 2017 with usage plateauing in 2011 and a drop in usage after a 2012 Health Canada advisory warning about domperidone.<ref name="e088">Template:Cite journal</ref>

Other usesEdit

Parkinson's diseaseEdit

Parkinson's disease is a degenerative neurological condition where a decrease in dopamine in the brain leads to rigidity (stiffness of movement), tremor, and other symptoms and signs. Poor gastrointestinal function, nausea, and vomiting are major problems for people with Parkinson's disease because most medications used to treat Parkinson's disease are given by mouth. These medications, such as levodopa, can also cause nausea as a side effect. Furthermore, anti-nausea drugs, such as metoclopramide, which do cross the blood–brain barrier, may worsen the extrapyramidal symptoms of Parkinson's disease. Domperidone can be used to relieve nausea and gastrointestinal symptoms in Parkinson's disease; it blocks peripheral D2 receptors but minimally crosses the blood-brain barrier in normal doses, so has no effect on the extrapyramidal symptoms of the disease.<ref name="pmid30361854">Template:Cite journal</ref><ref name="pmid18281732">Template:Cite journal</ref><ref name="pmid9108986">Template:Cite journal</ref> In addition, domperidone may be useful in the treatment of orthostatic hypotension caused by dopaminergic therapy in people with Parkinson's disease.<ref name="BacchiChimKramer2017">Template:Cite journal</ref><ref name="LiWuCui2023">Template:Cite journal</ref><ref name="Lang2001">Template:Cite journal</ref><ref name="LuchsingerGrilliVelasco1998">Template:Cite journal</ref><ref name="SchofferHendersonOMaley2007">Template:Cite journal</ref>

Other gastrointestinal usesEdit

Domperidone may be used in functional dyspepsia in both adults and children.<ref>Template:Cite journal</ref><ref>Template:Cite journal</ref> It has also been found effective in the treatment of reflux in children.<ref>Template:Cite book (Google Books)</ref> However some specialists consider its risks prohibitory of the treatment of infantile reflux.<ref>Template:Cite news</ref>

Available formsEdit

Domperidone is available for use by oral administration in the form of tablets, orally disintegrating tablets (ODTs) and suspension, and by rectal administration in the form of suppositories.<ref name="ema" /><ref name="mhra"/> The oral tablets are available in the strength of 10Template:Nbspmg.<ref name="mechanismforantiemetic"/> Domperidone has been studied for use by intramuscular injection and an intravenous formulation was previously available, but the medication is now only available in forms for oral and rectal administration.<ref name="mechanismforantiemetic"/>

Veterinary usesEdit

Domperidone is used as immunotherapy to treat leishmania in dogs.<ref>Template:Cite journal</ref>

Domperidone also has an FDA-approved formulation for the prevention of fescue toxicosis in periparturient mares.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

ContraindicationsEdit

Domperidone is contraindicated with QT-prolonging drugs like amiodarone.<ref name="MIMS">Swannick G. (ed.) "MIMS Australia." December 2013</ref>

Side effectsEdit

Side effects associated with domperidone include dry mouth, abdominal cramps, diarrhea, nausea, rash, itching, hives, and hyperprolactinemia (the symptoms of which may include breast enlargement, galactorrhea, breast pain/tenderness, gynecomastia, hypogonadism, and menstrual irregularities).<ref name="Henderson2003"/>

Due to the blockade of D2 receptors in the central nervous system, D2 receptor antagonists like metoclopramide and antipsychotics can also produce a variety of additional side effects including drowsiness, akathisia, restlessness, insomnia, lassitude, fatigue, extrapyramidal symptoms, dystonia, Parkinsonian symptoms, tardive dyskinesia, and depression.<ref name="mechanismforantiemetic"/><ref name="pmid10332535" /> However, this is not the case with domperidone, because, unlike other D2 receptor antagonists, it minimally crosses the blood–brain barrier, and for this reason, is rarely associated with such side effects.<ref name="mechanismforantiemetic"/><ref name="pmid10332535" /> However, domperidone theoretically might be able to produce some blockade of central D2 receptors at higher doses, in turn producing side effects similar to those of centrally permeable D2 receptor antagonists like antipsychotics.<ref name="pmid24660005">Template:Cite journal</ref>

Elevated prolactin levelsEdit

Due to D2 receptor blockade, domperidone causes hyperprolactinemia.<ref name="JoslinKahn2005">Template:Cite book</ref> Hyperprolactinemia can suppress the secretion of gonadotropin-releasing hormone (GnRH) from the hypothalamus, in turn suppressing the secretion of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) and resulting in hypogonadism and low levels of the sex hormones estradiol and testosterone.<ref name="Jr.2010">Template:Cite book</ref> Accordingly, 10 to 15% of females have been reported to experience mammoplasia (breast enlargement), mastodynia (breast pain/tenderness), galactorrhea (inappropriate or excessive milk production/secretion), and amenorrhea (cessation of menstrual cycles) with domperidone therapy.<ref name="JoslinKahn2005" /> Males may experience low libido, erectile dysfunction, and impaired spermatogenesis, as well as galactorrhea and gynecomastia.<ref name="Jr.2010" /><ref name="BriggsFreeman2012">Template:Cite book</ref> D2 receptor antagonists like antipsychotics and domperidone may also increase the risk of prolactinomas, but more research is needed to confirm this.<ref name="pmid20455888">Template:Cite journal</ref><ref name="pmid20592331">Template:Cite journal</ref><ref name="pmid30531551">Template:Cite journal</ref><ref name="DurraniVasireddyArshad2023">Template:Cite journal</ref>

Rare reactionsEdit

Cardiac complicationsEdit

Domperidone use is associated with an increased risk of sudden cardiac death (by 70%)<ref name="pmid26649742">Template:Cite journal</ref> most likely through its prolonging effect of the cardiac QT interval and ventricular arrhythmias.<ref>Template:Cite journal</ref><ref>Template:Cite journal</ref> The cause is thought to be blockade of hERG voltage-gated potassium channels.<ref name="pmid20394569">Template:Cite journal</ref><ref name="pmid24147629">Template:Cite journal</ref> The risks are dose-dependent, and appear to be greatest with high/very high doses via intravenous administration and in the elderly, as well as with drugs that interact with domperidone and increase its circulating concentrations (namely CYP3A4 inhibitors).<ref name="MarziWeitz2015">Template:Cite journal</ref><ref name="pmid26117678">Template:Cite journal</ref> Conflicting reports exist, however.<ref name="OrtizCooper2015">Template:Cite journal</ref> In neonates and infants, QT prolongation is controversial and uncertain.<ref>Template:Cite journal</ref><ref>Template:Cite journal</ref>

UK drug regulatory authorities (MHRA) have issued the following restriction on domperidone in 2014 due to increased risk of adverse cardiac effects:<ref name="MHRA2014">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

<templatestyles src="Template:Blockquote/styles.css" />

Domperidone (Motilium) is associated with a small increased risk of serious cardiac side effects. Its use is now restricted to the relief of nausea and vomiting and the dosage and duration of use have been reduced. It should no longer be used for the treatment of bloating and heartburn. Domperidone is now contraindicated in those with underlying cardiac conditions and other risk factors. Patients with these conditions and patients receiving long-term treatment with domperidone should be reassessed at a routine appointment, in light of the new advice.{{#if:|{{#if:|}}

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{{#invoke:Check for unknown parameters|check|unknown=Template:Main other|preview=Page using Template:Blockquote with unknown parameter "_VALUE_"|ignoreblank=y| 1 | 2 | 3 | 4 | 5 | author | by | char | character | cite | class | content | multiline | personquoted | publication | quote | quotesource | quotetext | sign | source | style | text | title | ts }}

However, a 2015 Australian review concluded the following:<ref name="pmid26117678" />

<templatestyles src="Template:Blockquote/styles.css" />

Based on the results of the two TQT (the regulatory agency gold standard for assessment of QT prolongation) domperidone does not appear to be strongly associated with QT prolongation at oral doses of 20 mg QID in healthy volunteers. Further, there are limited case reports supporting an association with cardiac dysfunction, and the frequently cited case-control studies have significant flaws. While there remains an ill-defined risk at higher systemic concentrations, especially in patients with a higher baseline risk of QT prolongation, our review does not support the view that domperidone presents intolerable risk.{{#if:|{{#if:|}}

}}

{{#invoke:Check for unknown parameters|check|unknown=Template:Main other|preview=Page using Template:Blockquote with unknown parameter "_VALUE_"|ignoreblank=y| 1 | 2 | 3 | 4 | 5 | author | by | char | character | cite | class | content | multiline | personquoted | publication | quote | quotesource | quotetext | sign | source | style | text | title | ts }}

Possible central toxicity in infantsEdit

In Britain, a legal case involved the death of two children of a mother whose three children had all had hypernatraemia. She was charged with poisoning the children with salt. One of the children, who was born at 28 weeks gestation with respiratory complications and had a fundoplication for gastroesophageal reflux and failure to thrive was prescribed domperidone. An advocate for the mother suggested the child may have had neuroleptic malignant syndrome as a side effect of domperidone due to the drug crossing the child's immature blood–brain barrier.<ref>Template:Cite journal</ref>

InteractionsEdit

In healthy volunteers, the CYP3A4 inhibitor ketoconazole increased the Cmax and AUC concentrations of domperidone by 3- to 10-fold.<ref name="Aronson2009">Template:Cite book</ref> This was accompanied by a QT interval prolongation of about 10–20 milliseconds when domperidone 10 mg four times daily and ketoconazole 200 mg twice daily were administered, whereas domperidone by itself at the dosage assessed produced no such effect.<ref name="Aronson2009" /> As such, domperidone with ketoconazole or other CYP3A4 inhibitors is a potentially dangerous combination.<ref name="Aronson2009" />

PharmacologyEdit

PharmacodynamicsEdit

Domperidone is a peripherally selective dopamine D2 and D3 receptor antagonist.<ref name="pmid10332535" /> It has no clinically significant interaction with the D1 receptor, unlike metoclopramide.<ref name="pmid10332535" /> The medication provides relief from nausea by blocking D2 receptors in the chemoreceptor trigger zone and from gastrointestinal symptoms by blocking D2 receptors in the gut.<ref name="pmid25475074" /><ref name="mechanismforantiemetic"/> It blocks D2 receptors in the lactotrophs of the anterior pituitary gland increasing release of prolactin which in turn increases lactation.<ref name="pmid25475074" /><ref>Saeb-Parsy K. "Instant pharmacology." John Wiley & Sons, 1999 Template:ISBN, 9780471976394 p216.</ref><ref>Template:Cite journal</ref> Domperidone may be more useful in some patients and cause harm in others by way of the genetics of the person, such as polymorphisms in the drug transporter gene ABCB1 (which encodes P-glycoprotein), the voltage-gated potassium channel KCNH2 gene (hERG/Kv11.1), and the α1D-adrenergic receptor ADRA1D gene.<ref>Template:Cite journal</ref>

Effects on prolactin levelsEdit

A single 20 mg oral dose of domperidone has been found to increase mean serum prolactin levels (measured 90 minutes post-administration) in non-lactating women from 8.1 ng/mL to 110.9 ng/mL (a 13.7-fold increase).<ref name="pmid10332535" /><ref name="pmid12192964">Template:Cite journal</ref><ref name="pmid3882143">Template:Cite journal</ref><ref name="pmid7428183">Template:Cite journal</ref> This was similar to the increase in prolactin levels produced by a single 20 mg oral dose of metoclopramide (7.4 ng/mL to 124.1 ng/mL; 16.7-fold increase).<ref name="pmid3882143" /><ref name="pmid7428183" /> After two weeks of repeated administration (30 mg/day in both cases), the increase in prolactin levels produced by domperidone was reduced (53.2 ng/mL; 6.6-fold above baseline), but the increase in prolactin levels produced by metoclopramide, conversely, was heightened (179.6 ng/mL; 24.3-fold above baseline).<ref name="pmid10332535" /><ref name="pmid7428183" /> This indicates that acute and continuous administration of both domperidone and metoclopramide is effective in increasing prolactin levels, but that there are different effects on the secretion of prolactin with repeated use.<ref name="pmid3882143" /><ref name="pmid7428183" /> The mechanism of the difference is unknown.<ref name="pmid7428183" /> The increase in prolactin levels observed with the two drugs was much greater in women than in men.<ref name="pmid3882143" /><ref name="pmid7428183" /> This appears to be due to the higher estrogen levels in women, as estrogen stimulates prolactin secretion from the pituitary gland.<ref name="pmid7460861">Template:Cite journal</ref>

For comparison, normal prolactin levels in women are less than 20 ng/mL, prolactin levels peak at 100 to 300 ng/mL at parturition in pregnant women, and in lactating women, prolactin levels have been found to be 90 ng/mL at 10 days postpartum and 44 ng/mL at 180 days postpartum.<ref name="Riordan2005">Template:Cite book</ref><ref name="Becker2001">Template:Cite book</ref>

PharmacokineticsEdit

AbsorptionEdit

The absolute bioavailability of domperidone is low (13–17% or approximately 15%).<ref name="EMC-Domperidone" /><ref name="mechanismforantiemetic"/> This is due to extensive first-pass metabolism in the intestines and liver.<ref name="EMC-Domperidone" /> Conversely, its bioavailability is high via intramuscular injection (90%).<ref name="mechanismforantiemetic"/> The onset of action of domperidone taken orally is about 30 to 60 minutes.<ref name="NHS-Domperidone" /><ref name="mechanismforantiemetic"/> Peak levels of domperidone following an oral dose occur after about 60 minutes.<ref name="EMC-Domperidone">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> Domperidone exposure increases proportionally with doses in the 10 to 20 mg dose range.<ref name="EMC-Domperidone" /> There is a 2- to 3-fold accumulation in levels of domperidone with frequent repeated oral administration of domperidone (four times per day (every 5 hours) for 4 days).<ref name="EMC-Domperidone" /> The oral bioavailability of domperidone is somewhat increased, and time to peak slightly increased when it is taken with food and bioavailability is decreased by prior concomitant administration of cimetidine and sodium bicarbonate.<ref name="EMC-Domperidone" />

DistributionEdit

The plasma protein binding of domperidone is 91 to 93%.<ref name="EMC-Domperidone" /> The tissue distribution of domperidone based on animal studies is wide, but concentrations are low in the brain.<ref name="EMC-Domperidone" /> The drug is a substrate for the P-glycoprotein (ABCB1) transporter, and animal studies suggest that this is the reason for the low central nervous system penetration of domperidone.<ref name="BardalWaechter2011">Template:Cite book</ref> Small amounts of domperidone cross the placenta in animals.<ref name="EMC-Domperidone" />

MetabolismEdit

Domperidone is extensively metabolized in the liver and intestines with oral administration.<ref name="EMC-Domperidone" /><ref name="SimardMichaud2008" /><ref name="pmid26059917" /> This occurs via hydroxylation and N-dealkylation.<ref name="EMC-Domperidone" /> Domperidone is almost exclusively metabolized by CYP3A4/5, though minor contributions by CYP1A2, CYP2D6, and CYP2C8 have been reported.<ref name="pmid26059917">Template:Cite journal</ref><ref name="SimardMichaud2008" /> CYP3A4 is the major enzyme involved in the N-dealkylation of domperidone, while CYP3A4, CYP1A2, and CYP2E1 are involved in its aromatic hydroxylation.<ref name="EMC-Domperidone" /> All of the metabolites of domperidone are inactive as D2 receptor ligands.<ref name="mechanismforantiemetic"/><ref name="SimardMichaud2008" /> Overall and peak levels of domperidone are increased by about 2.9- and 1.5-fold in moderate hepatic impairment, respectively.<ref name="EMC-Domperidone" />

EliminationEdit

Domperidone is eliminated 31% in urine and 66% in feces.<ref name="EMC-Domperidone" /> The proportion of domperidone excreted unchanged is small (10% in feces and 1% in urine).<ref name="EMC-Domperidone" /> The elimination half-life of domperidone is about 7 to 9 hours in healthy individuals.<ref name="EMC-Domperidone" /><ref name="mechanismforantiemetic"/> However, the elimination half-life of domperidone can be prolonged to 20 hours in people with severe renal dysfunction.<ref name="EMC-Domperidone" /><ref name="mechanismforantiemetic"/>

ChemistryEdit

Domperidone is a derivative of benzimidazolinone. It is structurally related to butyrophenone neuroleptics like haloperidol.<ref name="HospitalFormulary1991">Template:Cite book</ref><ref name="BiggioCosta2013">Template:Cite book</ref>

HistoryEdit

Domperidone was synthesized at Janssen Pharmaceutica in 1974 following their research on antipsychotic drugs.<ref name="dd">Template:Cite book</ref><ref name="pmid18507654">Template:Cite journal</ref> Janssen pharmacologists discovered that some antipsychotic drugs had a significant effect on dopamine receptors in the central chemoreceptor trigger zone that regulated vomiting, and started searching for a dopamine antagonist that would not pass the blood–brain barrier, thereby being free of the extrapyramidal side effects that were associated with drugs of this type.<ref name="dd" /> This led to the discovery of domperidone as a strong antiemetic with minimal central effects.<ref name="dd" /><ref>Template:Cite book</ref> Domperidone was patented in the United States in 1978, with the patent filed in 1976Template:Citation needed. In 1979, domperidone was first marketed, under the brand name Motilium, in Switzerland and West Germany.<ref name="WilliamAndrewPublishing2013">Template:Cite book</ref> Domperidone was subsequently introduced in the forms of orally disintegrating tablets (based on Zydis technology) in 1999.<ref>Template:Cite book</ref>

In April 2014, the Coordination Group for Mutual Recognition and Decentralised Procedures – Human (CMDh) published an official press release suggesting restricting the use of domperidone-containing medicines. It also approved earlier published suggestions by Pharmacovigilance Risk Assessment Committee (PRAC) to use domperidone only for treating nausea and vomiting and reduce maximum daily dosage to 10mg.<ref name="ema">Template:Cite press release</ref>

Society and cultureEdit

Generic namesEdit

Domperidone is the generic name of the drug and its Template:Abbrlink, Template:Abbrlink, Template:Abbrlink, and Template:Abbrlink.<ref name="Elks2014">Template:Cite book</ref><ref name="IndexNominum2000">Template:Cite book</ref><ref name="Drugs.com">{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>

Regulatory approvalEdit

It was reported in 2007 that domperidone is available in 58 countries,<ref name="mechanismforantiemetic"/> but the uses or indications of domperidone vary between nations. In Italy it is used in the treatment of gastroesophageal reflux disease and in Canada, the drug is indicated in upper gastrointestinal motility disorders and to prevent gastrointestinal symptoms associated with the use of dopamine agonist antiparkinsonian agents.<ref>"Domperidone - heart rate and rhythm disorders." Canadian adverse reactions newsletter. Government of Canada. January 2007 17(1)</ref> In the United Kingdom, domperidone is only indicated for the treatment of nausea and vomiting and the treatment duration is usually limited to 1 week.

In the United States, domperidone is not a legally marketed human drug and it is not approved for sale in the United States.<ref name="FDA 20231212" /> In June 2004, the Food and Drug Administration (FDA) issued a warning that distributing any domperidone-containing products is illegal.<ref name="FDA 20231212" />

It is available over-the-counter to treat gastroesophageal reflux disease and functional dyspepsia in many countries, such as Ireland, the Netherlands, Italy, South Africa, Mexico, India, Chile, and China.<ref name="FaisVermiglio2015">Template:Cite journal</ref>

Domperidone is not approved for use in the United States.<ref name="FDA 20231212" /> There is an exception for use in people with treatment-refractory gastrointestinal symptoms under an FDA Investigational New Drug application.<ref name="mechanismforantiemetic"/><ref name="FDA 20231212" />

FormulationsEdit

ResearchEdit

Domperidone has been studied as a potential hormonal contraceptive to prevent pregnancy in women.<ref name="HofmeyrVan Iddekinge2009">Template:Cite journal</ref>

ReferencesEdit

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