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==Medical uses== | ==Medical uses== | ||
It is primarily used in the treatment of ], although it may be used against any susceptible ].<ref name="AMH">{{cite book | editor = Rossi, S | isbn = 978-0-9805790-9-3 | title = Australian Medicines Handbook | place = Adelaide | publisher = The Australian Medicines Handbook Unit Trust | year = 2013 | edition = 2013 }}</ref> It may also be used to treat and prevent '']'' pneumonia.<ref name = AMH/> It is generally not recommended for the treatment of ] such as ] (the leading cause of antibiotic-induced diarrhea).<ref name = AMH/> Trimethoprim has been used in trials to treat ].<ref name="Pradhan">{{cite journal | vauthors = Pradhan E, Bhandari S, Gilbert RE, Stanford M | title = Antibiotics versus no treatment for toxoplasma retinochoroiditis | journal = Cochrane Database Syst Rev | volume = | issue = 5 | pages = CD002218 | date = May 2016 | pmid = 27198629 | doi = 10.1002/14651858.CD002218.pub2 | url = http://discovery.ucl.ac.uk/1527650/1/Pradhan_Antibiotics%20versus%20no%20treatment%20for%20toxoplasma%20retinochoroiditis.pdf }}</ref> | It is primarily used in the treatment of ], although it may be used against any susceptible ].<ref name="AMH">{{cite book | editor = Rossi, S | isbn = 978-0-9805790-9-3 | title = Australian Medicines Handbook | place = Adelaide | publisher = The Australian Medicines Handbook Unit Trust | year = 2013 | edition = 2013 }}</ref> It may also be used to treat and prevent '']'' pneumonia.<ref name = AMH/> It is generally not recommended for the treatment of ] such as ] (the leading cause of antibiotic-induced diarrhea).<ref name = AMH/> Trimethoprim has been used in trials to treat ].<ref name="Pradhan">{{cite journal | vauthors = Pradhan E, Bhandari S, Gilbert RE, Stanford M | title = Antibiotics versus no treatment for toxoplasma retinochoroiditis | journal = Cochrane Database Syst Rev | volume = | issue = 5 | pages = CD002218 | date = May 2016 | pmid = 27198629 | doi = 10.1002/14651858.CD002218.pub2 | pmc = 7100541 | url = http://discovery.ucl.ac.uk/1527650/1/Pradhan_Antibiotics%20versus%20no%20treatment%20for%20toxoplasma%20retinochoroiditis.pdf }}</ref> | ||
Resistance to trimethoprim is increasing, but it is still a first line antibiotic in many countries.<ref>{{cite web |url=https://www.nice.org.uk/advice/ktt10/chapter/evidence-context |title=Three-day courses of antibiotics for uncomplicated urinary tract infection | Guidance and guidelines | NICE |accessdate=2015-12-30 |url-status=live |archiveurl=https://web.archive.org/web/20151208004951/http://www.nice.org.uk/advice/ktt10/chapter/Evidence-context |archivedate=2015-12-08 }}</ref> | Resistance to trimethoprim is increasing, but it is still a first line antibiotic in many countries.<ref>{{cite web |url=https://www.nice.org.uk/advice/ktt10/chapter/evidence-context |title=Three-day courses of antibiotics for uncomplicated urinary tract infection | Guidance and guidelines | NICE |accessdate=2015-12-30 |url-status=live |archiveurl=https://web.archive.org/web/20151208004951/http://www.nice.org.uk/advice/ktt10/chapter/Evidence-context |archivedate=2015-12-08 }}</ref> | ||
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=== Rare === | === Rare === | ||
* Can cause ] (low levels of ]) by lowering ] levels; this may also cause ].<ref name=":2">{{Cite book|title = Drug Information for the Health Care Professional. 22nd ed. Volume 1.|last = MICROMEDEX Thomson Health Care. USPDIpublisher = Thomson Health |location = CareGreenwood Village, CO. 2002 p. 2849}}</ref> | * Can cause ] (low levels of ]) by lowering ] levels; this may also cause ].<ref name=":2">{{Cite book|title = Drug Information for the Health Care Professional. 22nd ed. Volume 1.|last = MICROMEDEX Thomson Health Care. USPDIpublisher = Thomson Health |location = CareGreenwood Village, CO. 2002 p. 2849}}</ref> | ||
* Trimethoprim antagonizes the ] <!-- (ENaC) --> in the ], thus acting like ]. This can cause increased potassium levels in the body (]).<ref>{{Cite journal|title = Trimethoprim-Induced Hyperkalemia in a Patient with AIDS|journal = New England Journal of Medicine|date = 1993-03-11|issn = 0028-4793|pmid = 8433730|pages = 703–706|volume = 328|issue = 10|doi = 10.1056/NEJM199303113281006| |
* Trimethoprim antagonizes the ] <!-- (ENaC) --> in the ], thus acting like ]. This can cause increased potassium levels in the body (]).<ref>{{Cite journal|title = Trimethoprim-Induced Hyperkalemia in a Patient with AIDS|journal = New England Journal of Medicine|date = 1993-03-11|issn = 0028-4793|pmid = 8433730|pages = 703–706|volume = 328|issue = 10|doi = 10.1056/NEJM199303113281006|first1 = Michael J.|last1 = Choi|first2 = Pedro C.|last2 = Fernandez|first3 = Asit|last3 = Patnaik|first4 = Brigitte|last4 = Coupaye-Gerard|first5 = Denise|last5 = D'Andrea|first6 = Harold|last6 = Szerlip|first7 = Thomas R.|last7 = Kleyman}}</ref> | ||
* Can compete with ] for secretion into the renal tubule. This can cause an artificial rise in the serum creatinine.<ref>{{Cite journal|title = Effects of moderate-dose versus high-dose trimethoprim on serum creatinine and creatinine clearance and adverse reactions|journal = Antimicrobial Agents and Chemotherapy|date = 1997-11-01|issn = 0066-4804|pmc = 164146|pmid = 9371351|pages = 2466–2470|volume = 41|issue = 11| |
* Can compete with ] for secretion into the renal tubule. This can cause an artificial rise in the serum creatinine.<ref>{{Cite journal|title = Effects of moderate-dose versus high-dose trimethoprim on serum creatinine and creatinine clearance and adverse reactions|journal = Antimicrobial Agents and Chemotherapy|date = 1997-11-01|issn = 0066-4804|pmc = 164146|pmid = 9371351|pages = 2466–2470|volume = 41|issue = 11|first1 = O.|last1 = Naderer|first2 = A. N.|last2 = Nafziger|first3 = J. S.|last3 = Bertino|doi = 10.1128/AAC.41.11.2466}}</ref> | ||
* Use in ] infections may lead to an increase in expression of ].<ref>{{cite journal | vauthors = Kimmitt PT, Harwood CR, Barer MR | title = Toxin Gene Expression by Shiga Toxin-producing ''Escherichia coli'': The Role of Antibiotics and the Bacterial SOS Response | journal = Emerg Infect Dis | year = 2000 | volume = 6 | issue = 5 | pages = 458–465 | pmid = 10998375 | pmc = 2627954 | doi = 10.3201/eid0605.000503 | df = }}</ref> | * Use in ] infections may lead to an increase in expression of ].<ref>{{cite journal | vauthors = Kimmitt PT, Harwood CR, Barer MR | title = Toxin Gene Expression by Shiga Toxin-producing ''Escherichia coli'': The Role of Antibiotics and the Bacterial SOS Response | journal = Emerg Infect Dis | year = 2000 | volume = 6 | issue = 5 | pages = 458–465 | pmid = 10998375 | pmc = 2627954 | doi = 10.3201/eid0605.000503 | df = }}</ref> | ||
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=== Pregnancy === | === Pregnancy === | ||
Based on studies that show that trimethoprim crosses the ] and can affect folate metabolism, there has been growing evidence of the risk of structural birth defects associated with trimethoprim, especially during the first ] of pregnancy.<ref name="Sivojelezova 1085–1086">{{Cite journal|title = Trimethoprim-sulfonamide combination therapy in early pregnancy.|journal = Canadian Family Physician|date = 2003-09-01|issn = 0008-350X|pmc = 2214286|pmid = 14526858|pages = 1085–1086|volume = 49| |
Based on studies that show that trimethoprim crosses the ] and can affect folate metabolism, there has been growing evidence of the risk of structural birth defects associated with trimethoprim, especially during the first ] of pregnancy.<ref name="Sivojelezova 1085–1086">{{Cite journal|title = Trimethoprim-sulfonamide combination therapy in early pregnancy.|journal = Canadian Family Physician|date = 2003-09-01|issn = 0008-350X|pmc = 2214286|pmid = 14526858|pages = 1085–1086|volume = 49|first1 = Anna|last1 = Sivojelezova|first2 = Adrienne|last2 = Einarson|first3 = Samar|last3 = Shuhaiber|first4 = Gideon|last4 = Koren}}</ref> It may be involved in a reaction similar to ] when alcohol is consumed after it is used, in particular when used in combination with ].<ref>{{cite journal | vauthors = Edwards DL, Fink PC, van Dyke PO | title = Disulfiram-like reaction associated with intravenous trimethoprim-sulfamethoxazole and metronidazole | journal = J Clinical Pharmacy | year = 1986 | volume = 5 | issue = 12 | pages = 999–1000 | pmid = 3492326 | url = http://cat.inist.fr/?aModele=afficheN&cpsidt=8287529 | url-status = live | archiveurl = https://web.archive.org/web/20090124113327/http://cat.inist.fr/?aModele=afficheN&cpsidt=8287529 | archivedate = 2009-01-24 }}</ref><ref>{{cite journal | vauthors = Heelon MW, White M | title = Disulfiram cotrimoxazole reaction | journal = J Pharmacotherapy | year = 1998 | volume = 18 | issue = 4 | pages = 869–870 | doi = 10.1002/j.1875-9114.1998.tb03913.x | pmid = 9692665 | url = http://cat.inist.fr/?aModele=afficheN&cpsidt=2340043 | url-status = live | archiveurl = https://web.archive.org/web/20090124113456/http://cat.inist.fr/?aModele=afficheN&cpsidt=2340043 | archivedate = 2009-01-24 }}</ref> | ||
The trophoblasts in the early fetus are sensitive to changes in the folate cycle. A recent study has found a doubling in the risk of miscarriage in women exposed to trimethoprim in the early pregnancy.<ref>{{cite journal | vauthors = Andersen JT, Petersen M, Jimenez-Solem E, Broedbaek K, Andersen EW, Andersen NL, Afzal S, Torp-Pedersen C, Keiding N, Poulsen HE | title = Trimethoprim use in early pregnancy and the risk of miscarriage: a register-based nationwide cohort study | journal = Epidemiology and Infection | year = 2013 | volume = 141 | issue = 8 | pages = 1749–1755 | doi = 10.1017/S0950268812002178 | pmid = 23010291 }}</ref> | The trophoblasts in the early fetus are sensitive to changes in the folate cycle. A recent study has found a doubling in the risk of miscarriage in women exposed to trimethoprim in the early pregnancy.<ref>{{cite journal | vauthors = Andersen JT, Petersen M, Jimenez-Solem E, Broedbaek K, Andersen EW, Andersen NL, Afzal S, Torp-Pedersen C, Keiding N, Poulsen HE | title = Trimethoprim use in early pregnancy and the risk of miscarriage: a register-based nationwide cohort study | journal = Epidemiology and Infection | year = 2013 | volume = 141 | issue = 8 | pages = 1749–1755 | doi = 10.1017/S0950268812002178 | pmid = 23010291 }}</ref> | ||
==Mechanism of action== | ==Mechanism of action== | ||
] | ] | ||
Trimethoprim binds to ] and inhibits the reduction of ] (DHF) to ] (THF).<ref name = drugs82/> THF is an essential precursor in the thymidine synthesis pathway and interference with this pathway inhibits bacterial DNA synthesis.<ref name = drugs82/> Trimethoprim's affinity for bacterial dihydrofolate reductase is several thousand times greater than its affinity for human dihydrofolate reductase.<ref name = drugs82/> ] inhibits ], an enzyme involved further upstream in the same pathway.<ref name = drugs82/> ] are commonly used in combination due to possible synergistic effects, and reduced development of resistance.<ref name = drugs82>{{cite journal|last=Brogden|first=RN|author2=Carmine, AA |author3=Heel, RC |author4=Speight, TM |author5= Avery, GS |title=Trimethoprim: a review of its antibacterial activity, pharmacokinetics and therapeutic use in urinary tract infections.|journal=Drugs|date=June 1982|volume=23|issue=6|pages=405–30|doi=10.2165/00003495-198223060-00001|pmid=7049657}}</ref> This benefit has been questioned.<ref name=Brumfitt1993>{{cite journal |author1=Brumfitt, W |author2=Hamilton-Miller, JM |title=Reassessment of the rationale for the combinations of sulphonamides with diaminopyrimidines | journal=Journal of Chemotherapy |date=December 1993|volume=5|issue=6|pages=465–9|pmid=8195839|doi=10.1080/1120009X.1993.11741097 }}</ref> | Trimethoprim binds to ] and inhibits the reduction of ] (DHF) to ] (THF).<ref name = drugs82/> THF is an essential precursor in the thymidine synthesis pathway and interference with this pathway inhibits bacterial DNA synthesis.<ref name = drugs82/> Trimethoprim's affinity for bacterial dihydrofolate reductase is several thousand times greater than its affinity for human dihydrofolate reductase.<ref name = drugs82/> ] inhibits ], an enzyme involved further upstream in the same pathway.<ref name = drugs82/> ] are commonly used in combination due to possible synergistic effects, and reduced development of resistance.<ref name = drugs82>{{cite journal|last=Brogden|first=RN|author2=Carmine, AA |author3=Heel, RC |author4=Speight, TM |author5= Avery, GS |title=Trimethoprim: a review of its antibacterial activity, pharmacokinetics and therapeutic use in urinary tract infections.|journal=Drugs|date=June 1982|volume=23|issue=6|pages=405–30|doi=10.2165/00003495-198223060-00001|pmid=7049657|s2cid=21806926}}</ref> This benefit has been questioned.<ref name=Brumfitt1993>{{cite journal |author1=Brumfitt, W |author2=Hamilton-Miller, JM |title=Reassessment of the rationale for the combinations of sulphonamides with diaminopyrimidines | journal=Journal of Chemotherapy |date=December 1993|volume=5|issue=6|pages=465–9|pmid=8195839|doi=10.1080/1120009X.1993.11741097 }}</ref> | ||
] synthesis pathway|thumb|none|upright=1.25]] | ] synthesis pathway|thumb|none|upright=1.25]] | ||
Revision as of 22:02, 16 September 2020
Not to be confused with Thymidine monophosphate. Pharmaceutical compoundClinical data | |
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Pronunciation | /traɪˈmɛθəprɪm/ |
Trade names | Proloprim, Monotrim, Triprim, others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a684025 |
License data |
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Pregnancy category |
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Routes of administration | Oral |
ATC code | |
Legal status | |
Legal status | |
Pharmacokinetic data | |
Bioavailability | 90–100% |
Protein binding | 44% |
Metabolism | hepatic |
Elimination half-life | 8–12 hours |
Excretion | Urine (50–60%), faeces (4%) |
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IUPAC name
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CAS Number | |
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DrugBank | |
ChemSpider | |
UNII | |
KEGG | |
ChEBI | |
ChEMBL | |
PDB ligand | |
CompTox Dashboard (EPA) | |
ECHA InfoCard | 100.010.915 |
Chemical and physical data | |
Formula | C14H18N4O3 |
Molar mass | 290.323 g·mol |
3D model (JSmol) | |
SMILES
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Trimethoprim (TMP) is an antibiotic used mainly in the treatment of bladder infections. Other uses include for middle ear infections and travelers' diarrhea. With sulfamethoxazole or dapsone it may be used for Pneumocystis pneumonia in people with HIV/AIDS. It is taken by mouth.
Common side effects include nausea, changes in taste, and rash. Rarely it may result in blood problems such as not enough platelets or white blood cells. May cause sun sensitivity. There is evidence of potential harm during pregnancy in some animals but not humans. It works by blocking folate metabolism via dihydrofolate reductase in some bacteria which results in their death.
Trimethoprim was first used in 1962. It is on the World Health Organization's List of Essential Medicines, the safest and most effective medicines needed in a health system. It is available as a generic medication and is not very expensive. In the United States, ten days of treatment costs about $21.
Medical uses
It is primarily used in the treatment of urinary tract infections, although it may be used against any susceptible aerobic bacterial species. It may also be used to treat and prevent Pneumocystis jirovecii pneumonia. It is generally not recommended for the treatment of anaerobic infections such as Clostridium difficile colitis (the leading cause of antibiotic-induced diarrhea). Trimethoprim has been used in trials to treat retinitis.
Resistance to trimethoprim is increasing, but it is still a first line antibiotic in many countries.
Spectrum of susceptibility
Cultures and susceptibility tests should be done to make sure bacteria are treated by trimethoprim.
- Escherichia coli
- Proteus mirabilis
- Klebsiella pneumoniae
- Enterobacter species
- Coagulase-negative Staphylococcus species, including S. saprophyticus
- Streptococcus pneumoniae
- Haemophilus influenzae
Side effects
Common
- Nausea
- Change in taste
- Vomiting
- Diarrhea
- Rash
- Sun sensitivity
- Itchiness
Rare
- Can cause thrombocytopenia (low levels of platelets) by lowering folic acid levels; this may also cause megaloblastic anemia.
- Trimethoprim antagonizes the epithelial sodium channel in the distal tubule, thus acting like amiloride. This can cause increased potassium levels in the body (hyperkalemia).
- Can compete with creatinine for secretion into the renal tubule. This can cause an artificial rise in the serum creatinine.
- Use in EHEC infections may lead to an increase in expression of Shiga toxin.
Contraindications
- Known hypersensitivity to trimethoprim
- History of megaloblastic anemia due to folate deficiency
Liver and kidney problems
10–20% of trimethoprim is metabolized by the liver and the rest is excreted in the urine. Therefore, trimethoprim should be used with caution in individuals with kidney and liver impairments. Dosage adjustment is not needed for liver impairment but should be adjusted for kidney impairment.
Pregnancy
Based on studies that show that trimethoprim crosses the placenta and can affect folate metabolism, there has been growing evidence of the risk of structural birth defects associated with trimethoprim, especially during the first trimester of pregnancy. It may be involved in a reaction similar to disulfiram when alcohol is consumed after it is used, in particular when used in combination with sulfamethoxazole. The trophoblasts in the early fetus are sensitive to changes in the folate cycle. A recent study has found a doubling in the risk of miscarriage in women exposed to trimethoprim in the early pregnancy.
Mechanism of action
Trimethoprim binds to dihydrofolate reductase and inhibits the reduction of dihydrofolic acid (DHF) to tetrahydrofolic acid (THF). THF is an essential precursor in the thymidine synthesis pathway and interference with this pathway inhibits bacterial DNA synthesis. Trimethoprim's affinity for bacterial dihydrofolate reductase is several thousand times greater than its affinity for human dihydrofolate reductase. Sulfamethoxazole inhibits dihydropteroate synthase, an enzyme involved further upstream in the same pathway. Trimethoprim and sulfamethoxazole are commonly used in combination due to possible synergistic effects, and reduced development of resistance. This benefit has been questioned.
History
Trimethoprim was first used in 1962. In 1972, it was used as a prophylactic treatment for urinary tract infections in Finland.
Its name is derived from trimethyloxy-pyrimidine.
See also
References
- ^ "Trimethoprim". The American Society of Health-System Pharmacists. Archived from the original on 2015-09-24. Retrieved Aug 1, 2015.
- Masur, H; Brooks, JT; Benson, CA; Holmes, KK; Pau, AK; Kaplan, JE; National Institutes of, Health; Centers for Disease Control and, Prevention; HIV Medicine Association of the Infectious Diseases Society of, America (May 2014). "Prevention and treatment of opportunistic infections in HIV-infected adults and adolescents: Updated Guidelines from the Centers for Disease Control and Prevention, National Institutes of Health, and HIV Medicine Association of the Infectious Diseases Society of America". Clinical Infectious Diseases. 58 (9): 1308–11. doi:10.1093/cid/ciu094. PMC 3982842. PMID 24585567.
- "Prescribing medicines in pregnancy database". Australian Government. 3 March 2014. Archived from the original on 8 April 2014. Retrieved 22 April 2014.
- ^ Huovinen, P (1 June 2001). "Resistance to trimethoprim-sulfamethoxazole". Clinical Infectious Diseases. 32 (11): 1608–14. doi:10.1086/320532. PMID 11340533.
- 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.
- Hamilton, Richart (2015). Tarascon Pocket Pharmacopoeia 2015 Deluxe Lab-Coat Edition. Jones & Bartlett Learning. p. 113. ISBN 9781284057560.
- ^ Rossi, S, ed. (2013). Australian Medicines Handbook (2013 ed.). Adelaide: The Australian Medicines Handbook Unit Trust. ISBN 978-0-9805790-9-3.
- Pradhan E, Bhandari S, Gilbert RE, Stanford M (May 2016). "Antibiotics versus no treatment for toxoplasma retinochoroiditis" (PDF). Cochrane Database Syst Rev (5): CD002218. doi:10.1002/14651858.CD002218.pub2. PMC 7100541. PMID 27198629.
- "Three-day courses of antibiotics for uncomplicated urinary tract infection | Guidance and guidelines | NICE". Archived from the original on 2015-12-08. Retrieved 2015-12-30.
- "DailyMed - TRIMETHOPRIM- trimethoprim tablet". dailymed.nlm.nih.gov. Archived from the original on 2015-09-30. Retrieved 2015-11-04.
- "DailyMed - PRIMSOL- trimethoprim hydrochloride solution". dailymed.nlm.nih.gov. Archived from the original on 2015-11-17. Retrieved 2015-11-04.
- "PROLOPRIM® (trimethoprim)100-mg and 200-mg Scored Tablets". dailymed.nlm.nih.gov. Archived from the original on 2015-11-17. Retrieved 2015-11-04.
- Ellenhorn, M.J.; S. Schonwald; G. Ordog; J. Wasserberger. American Hospital Formulary Service- Drug Information 2002. Baltimore, MD: Williams and Wilkins. p. 236.
- MICROMEDEX Thomson Health Care. USPDIpublisher = Thomson Health. Drug Information for the Health Care Professional. 22nd ed. Volume 1. CareGreenwood Village, CO. 2002 p. 2849.
{{cite book}}
: CS1 maint: location (link) - Choi, Michael J.; Fernandez, Pedro C.; Patnaik, Asit; Coupaye-Gerard, Brigitte; D'Andrea, Denise; Szerlip, Harold; Kleyman, Thomas R. (1993-03-11). "Trimethoprim-Induced Hyperkalemia in a Patient with AIDS". New England Journal of Medicine. 328 (10): 703–706. doi:10.1056/NEJM199303113281006. ISSN 0028-4793. PMID 8433730.
- Naderer, O.; Nafziger, A. N.; Bertino, J. S. (1997-11-01). "Effects of moderate-dose versus high-dose trimethoprim on serum creatinine and creatinine clearance and adverse reactions". Antimicrobial Agents and Chemotherapy. 41 (11): 2466–2470. doi:10.1128/AAC.41.11.2466. ISSN 0066-4804. PMC 164146. PMID 9371351.
- Kimmitt PT, Harwood CR, Barer MR (2000). "Toxin Gene Expression by Shiga Toxin-producing Escherichia coli: The Role of Antibiotics and the Bacterial SOS Response". Emerg Infect Dis. 6 (5): 458–465. doi:10.3201/eid0605.000503. PMC 2627954. PMID 10998375.
- "DailyMed - PRIMSOL- trimethoprim hydrochloride solution". dailymed.nlm.nih.gov. Archived from the original on 2015-11-17. Retrieved 2015-11-04.
- "DailyMed - TRIMETHOPRIM- trimethoprim tablet". dailymed.nlm.nih.gov. Archived from the original on 2015-09-30. Retrieved 2015-11-04.
- Sivojelezova, Anna; Einarson, Adrienne; Shuhaiber, Samar; Koren, Gideon (2003-09-01). "Trimethoprim-sulfonamide combination therapy in early pregnancy". Canadian Family Physician. 49: 1085–1086. ISSN 0008-350X. PMC 2214286. PMID 14526858.
- Edwards DL, Fink PC, van Dyke PO (1986). "Disulfiram-like reaction associated with intravenous trimethoprim-sulfamethoxazole and metronidazole". J Clinical Pharmacy. 5 (12): 999–1000. PMID 3492326. Archived from the original on 2009-01-24.
- Heelon MW, White M (1998). "Disulfiram cotrimoxazole reaction". J Pharmacotherapy. 18 (4): 869–870. doi:10.1002/j.1875-9114.1998.tb03913.x. PMID 9692665. Archived from the original on 2009-01-24.
- Andersen JT, Petersen M, Jimenez-Solem E, Broedbaek K, Andersen EW, Andersen NL, Afzal S, Torp-Pedersen C, Keiding N, Poulsen HE (2013). "Trimethoprim use in early pregnancy and the risk of miscarriage: a register-based nationwide cohort study". Epidemiology and Infection. 141 (8): 1749–1755. doi:10.1017/S0950268812002178. PMID 23010291.
- Heaslet, H.; Harris, M.; Fahnoe, K.; Sarver, R.; Putz, H.; Chang, J.; Subramanyam, C.; Barreiro, G.; Miller, J. R. (2009). "Structural comparison of chromosomal and exogenous dihydrofolate reductase fromStaphylococcus aureusin complex with the potent inhibitor trimethoprim". Proteins: Structure, Function, and Bioinformatics. 76 (3): 706–717. doi:10.1002/prot.22383. PMID 19280600.
- ^ Brogden, RN; Carmine, AA; Heel, RC; Speight, TM; Avery, GS (June 1982). "Trimethoprim: a review of its antibacterial activity, pharmacokinetics and therapeutic use in urinary tract infections". Drugs. 23 (6): 405–30. doi:10.2165/00003495-198223060-00001. PMID 7049657. S2CID 21806926.
- Brumfitt, W; Hamilton-Miller, JM (December 1993). "Reassessment of the rationale for the combinations of sulphonamides with diaminopyrimidines". Journal of Chemotherapy. 5 (6): 465–9. doi:10.1080/1120009X.1993.11741097. PMID 8195839.
External links
- "Trimethoprim". Drug Information Portal. U.S. National Library of Medicine.
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