Potassium dihydrogen phosphate 1.08% (potassium 20mmol/250ml) infusion 250ml bags
Requires a prescription from a doctor or prescriber
Monopotassium phosphate, MKP, (also potassium dihydrogenphosphate, KDP, or monobasic potassium phosphate), KH2PO4, is a soluble salt of potassium and the dihydrogen phosphate ion.
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MHRA alerts for Potassium dihydrogen phosphate
Safety monitoring data
Yellow Card reports
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Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
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Suspected adverse reactions reported for Potassium dihydrogen phosphate
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Potassium dihydrogen phosphate 1.08% (potassium 20mmol/250ml) infusion 250ml bags
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
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Supply & safety information
Official UK regulator monitoring and safety alerts
Pharmacy links redirect to the retailer's own search and do not represent real-time stock levels. Shortage and safety information sourced from MHRA drug safety updates (gov.uk, Crown Copyright under OGL v3.0).
Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
Browse tools
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. BNF code shown is the factual mapping value distributed by NHS Business Services Authority (NHSBSA) in the dm+d supplementary file under OGL v3.0; it is not affiliated with, nor licensed from, the publishers of the British National Formulary. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 4 · 1930–2026
Showing the 50 most relevant studies, sorted by most relevant.
G. E. Bacon, Rendel Sebastian Pease
Proceedings of the Royal Society of London A Mathematical and Physical Sciences, 1955
J. Jerphagnon, S. K. Kurtz
Physical review. B, Solid state, 1970
W. P. Mason
Physical Review, 1946
Mingxia Xu, Baoan Liu, Lisong Zhang, et al.
Light Science & Applications, 2022
R. Robert, C. Raj, S. Krishnan, et al.
Physica B-condensed Matter, 2010
G. E. Bacon, R. S. Pease
Proceedings of the Royal Society of London A Mathematical and Physical Sciences, 1953
Fanning Meng, Zhenyu Zhang, Zinuo Zeng, et al.
Tribology International, 2024
Hegde NN, Somanatha H, Lakshmi V C, et al.
2026
Sooheyong Lee, Haeng Sub Wi, Wonhyuk Jo, et al.
Proceedings of the National Academy of Sciences, 2016
Yijie Zhang, Shugang Wang, Boxun Zhang, et al.
Construction and Building Materials, 2020
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
4.8 to 10.6 hours
Mechanism
hosphorus has a number of important functions in the biochemistry of the body.
Food interactions
3 warnings
Human targets
None mapped
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
Half-life
4.8 to 10.6 hours
Protein binding
Volume of distribution
Elimination
90%
Potassium is excreted mainly by the kidneys.…
Clearance
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
Used as a nutritional supplement in foods, a nonlinear optical material for laser use, and in wastewater treatment;
Known interactions with other medications. Always consult a healthcare professional.
Showing 50 of 668 interactions
Rat : LdLo : 4640mg/kg (Oral)
Phosphate is a major intracellular anion that participates in providing energy for metabolism of substrates and contributes to important metabolic and enzymatic reactions in almost all organs and tissues. Phosphate exerts a modifying influence on calcium concentrations, a buffering effect on acid-base equilibrium, and has a major role in the renal excretion of hydrogen ions.
How the body processes this drug — absorption, distribution, metabolism, and elimination
Potassium is excreted mainly by the kidneys. Small amounts of potassium may be excreted via the skin and intestinal tract, but most of the potassium excreted into the intestine is later reabsorbed.
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Monopotassium phosphate
Matched from: Potassium dihydrogen phosphate
DrugBank citations
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Structured knowledge from the free knowledge base
Linked open data from Wikidata (Q415049), a free and open knowledge base operated by the Wikimedia Foundation. Data is available under the Creative Commons CC0 1.0 Public Domain Dedication.