Cinoxacin - Revision history

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	~~{{Short description\|An article about the antibiotic Cinoxacin}}~~		== Cinoxacin ==
	~~{{Drugbox~~
	~~\| verifiedrevid~~ = ~~477241123~~
	~~\| image~~ = Cinoxacin~~.svg~~
	~~\| image2~~ = ~~<!-- Another image if available -->~~
	}}

	~~'''Cinoxacin''' is a~~ [[~~synthetic antibiotic]] belonging to the [[quinolone]] class~~. ~~It was primarily used to treat [[urinary tract infections~~]] ~~(UTIs) caused by susceptible strains of bacteria. Although it was once a common treatment, it has largely been replaced by newer antibiotics with improved efficacy and safety profiles.~~		[[File:Cinoxacin.svg\|thumb\|right\|Chemical structure of Cinoxacin]]

	~~==Mechanism of Action==~~		'''Cinoxacin''' is a synthetic [[antibiotic]] belonging to the class of [[quinolone]] antibiotics. It was primarily used to treat [[urinary tract infection]]s (UTIs) caused by susceptible strains of bacteria. Cinoxacin was one of the earlier quinolones developed and was introduced in the 1970s.
	Cinoxacin ~~works by inhibiting bacterial~~ [[~~DNA gyrase~~]]~~, an enzyme critical for~~ [[~~DNA replication~~]] ~~and~~ [[~~transcription~~]]. ~~By interfering with this enzyme, cinoxacin prevents bacteria from reproducing~~ and ~~repairing themselves, leading to bacterial cell death~~.

	==~~Pharmacokinetics~~==		== Chemical Properties ==
	Cinoxacin is ~~administered orally and is well absorbed from the~~ [[~~gastrointestinal tract~~]]. It is ~~widely distributed throughout the body~~ and is ~~primarily excreted unchanged in the [[urine]]. This makes it particularly effective~~ for ~~treating infections of the urinary tract~~.		Cinoxacin is a [[naphthyridine]] derivative, which is structurally related to other quinolones. Its chemical formula is C12H10N2O5, and it has a molecular weight of 262.22 g/mol. The compound is characterized by a bicyclic structure that includes a carboxylic acid group, which is essential for its antibacterial activity.

	==~~Clinical Uses~~==		== Mechanism of Action ==
	Cinoxacin ~~was used to treat uncomplicated urinary tract infections caused~~ by [[~~Escherichia coli~~]], [[~~Proteus mirabilis~~]], ~~and other susceptible organisms. It was not effective against~~ [[~~Pseudomonas aeruginosa~~]] or [[~~anaerobic bacteria~~]].		Cinoxacin works by inhibiting bacterial [[DNA gyrase]] and [[topoisomerase IV]], enzymes that are critical for [[DNA replication]] and [[transcription]]. By interfering with these enzymes, cinoxacin prevents the bacteria from replicating and repairing their DNA, leading to bacterial cell death.

	==~~Side Effects~~==		== Clinical Use ==
	~~Common side effects~~ of ~~cinoxacin included~~ [[~~nausea~~]], [[~~vomiting~~]], ~~and~~ [[~~diarrhea]]. Some patients experienced [[photosensitivity~~]], ~~leading to increased risk of~~ [[~~sunburn~~]]. ~~Rarely~~, ~~it could cause [[central nervous system]] effects such as [[dizziness]]~~ and ~~[[headache]]~~.		Cinoxacin was primarily used to treat uncomplicated urinary tract infections. It was effective against a range of [[Gram-negative bacteria]], including ''[[Escherichia coli]]'', ''[[Proteus mirabilis]]'', and ''[[Klebsiella pneumoniae]]''. However, its use has declined with the development of newer quinolones that have broader spectra of activity and improved pharmacokinetic properties.

	==~~Resistance~~==		== Pharmacokinetics ==
	~~Bacterial resistance to cinoxacin can develop through mutations~~ in the ~~genes encoding DNA gyrase or through efflux mechanisms that reduce~~ drug ~~accumulation~~ in ~~bacterial cells. The emergence of resistance has limited~~ the ~~use of cinoxacin in clinical practice~~.		Cinoxacin is well absorbed from the gastrointestinal tract after oral administration. It is widely distributed in body tissues and fluids, including the kidneys and urinary tract, which makes it effective for treating UTIs. The drug is primarily excreted unchanged in the urine.

	==~~History~~==		== Side Effects ==
	~~Cinoxacin was introduced in the 1970s as one~~ of ~~the first quinolone antibiotics. It was a precursor to the development of more advanced quinolones,~~ such as [[~~ciprofloxacin~~]] and [[~~levofloxacin~~]], ~~which have broader spectra~~ of ~~activity~~ and ~~improved pharmacokinetic properties~~.		Common side effects of cinoxacin include [[gastrointestinal]] disturbances such as [[nausea]], [[vomiting]], and [[diarrhea]]. Some patients may experience [[central nervous system]] effects like [[dizziness]] and [[headache]]. As with other quinolones, there is a risk of [[tendonitis]] and [[tendon rupture]], although this is more common with newer agents.

	==~~Discontinuation~~==		== Resistance ==
	~~Due~~ to the development of ~~newer antibiotics with better safety~~ and ~~efficacy profiles, cinoxacin has been largely discontinued in many countries. It is no longer a first-line treatment for urinary tract infections~~.		Bacterial resistance to cinoxacin can occur through mutations in the genes encoding DNA gyrase and topoisomerase IV, or through the acquisition of resistance genes via plasmids. The development of resistance has limited the clinical utility of cinoxacin and other early quinolones.

	==Related ~~pages~~==		== Discontinuation ==
			Cinoxacin is no longer widely used in clinical practice, having been largely replaced by newer quinolones with improved efficacy and safety profiles. The availability of more potent and less toxic alternatives has led to a decline in its use.

			== Related Pages ==
	* [[Quinolone]]		* [[Quinolone]]
	* [[Urinary tract infection]]		* [[Urinary tract infection]]
	* [[Antibiotic resistance]]		* [[Antibiotic resistance]]

			[[Category:Quinolone antibiotics]]
	[[Category:Antibiotics]]		[[Category:Antibiotics]]
	~~[[Category:Quinolones]]~~
	~~<gallery>~~
	~~File:Cinoxacin.svg\|Cinoxacin~~
	~~</gallery>~~
	~~<gallery>~~
	~~File:Cinoxacin.svg\|Cinoxacin~~
	~~</gallery>~~

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	[[Category:Antibiotics]]		[[Category:Antibiotics]]
	[[Category:Quinolones]]		[[Category:Quinolones]]
			<gallery>
			File:Cinoxacin.svg\|Cinoxacin
			</gallery>
	<gallery>		<gallery>
	File:Cinoxacin.svg\|Cinoxacin		File:Cinoxacin.svg\|Cinoxacin
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	[[Category:Antibiotics]]		[[Category:Antibiotics]]
	[[Category:Quinolones]]		[[Category:Quinolones]]
			<gallery>
			File:Cinoxacin.svg\|Cinoxacin
			</gallery>

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	'''Cinoxacin''' is a ~~synthetic~~ [[~~antibacterial~~]] ~~agent that belongs~~ to the ~~class of~~ [[quinolone ~~antibiotics~~]]. It is primarily used ~~in the treatment of~~ urinary tract infections (UTIs) caused by susceptible bacteria. ~~Cinoxacin works~~ by ~~inhibiting the bacterial enzyme DNA gyrase, which is essential for DNA replication, transcription, repair, and recombination. This action leads to the death of the bacteria~~ and ~~the resolution of the infection~~.		{{Short description\|An article about the antibiotic Cinoxacin}}
			{{Drugbox
			\| verifiedrevid = 477241123
			\| image = Cinoxacin.svg
			\| image2 = <!-- Another image if available -->
			}}

			'''Cinoxacin''' is a [[synthetic antibiotic]] belonging to the [[quinolone]] class. It was primarily used to treat [[urinary tract infections]] (UTIs) caused by susceptible strains of bacteria. Although it was once a common treatment, it has largely been replaced by newer antibiotics with improved efficacy and safety profiles.

	==Mechanism of Action==		==Mechanism of Action==
	Cinoxacin ~~exerts its antibacterial effect~~ by ~~targeting the~~ DNA gyrase enzyme ~~in bacteria. DNA gyrase is a type II topoisomerase that introduces negative supercoils into DNA, which is a~~ critical ~~step in~~ DNA replication and transcription. By ~~inhibiting~~ this enzyme, cinoxacin prevents ~~the replication of bacterial DNA~~, leading to ~~the elimination of the bacteria causing the infection.~~		Cinoxacin works by inhibiting bacterial [[DNA gyrase]], an enzyme critical for [[DNA replication]] and [[transcription]]. By interfering with this enzyme, cinoxacin prevents bacteria from reproducing and repairing themselves, leading to bacterial cell death.

	~~==Indications==~~
	~~Cinoxacin is indicated for the treatment of acute, uncomplicated urinary tract infections caused by susceptible strains of the following microorganisms:~~
	* [[Escherichia coli]]
	* [[Proteus mirabilis]]
	* [[Klebsiella pneumoniae]]
	* [[Staphylococcus saprophyticus]]

	~~It is important to note that cinoxacin is not recommended for the treatment of pyelonephritis or perinephric abscesses due to insufficient data supporting its efficacy in these conditions~~.

	==Pharmacokinetics==		==Pharmacokinetics==
	~~After oral administration, cinoxacin~~ is absorbed from the gastrointestinal tract. Its bioavailability is approximately 90%, and peak plasma concentrations are reached within 1 to 2 hours. The presence of food can delay the absorption but does not significantly affect the overall bioavailability. Cinoxacin is ~~minimally metabolized in~~ the ~~liver~~ and is primarily excreted unchanged in the urine~~, where~~ it ~~achieves high concentrations that are~~ effective ~~against~~ urinary ~~pathogens~~.		Cinoxacin is administered orally and is well absorbed from the [[gastrointestinal tract]]. It is widely distributed throughout the body and is primarily excreted unchanged in the [[urine]]. This makes it particularly effective for treating infections of the urinary tract.

	==~~Adverse Effects~~==		==Clinical Uses==
	~~The most common adverse effects associated with cinoxacin include:~~		Cinoxacin was used to treat uncomplicated urinary tract infections caused by [[Escherichia coli]], [[Proteus mirabilis]], and other susceptible organisms. It was not effective against [[Pseudomonas aeruginosa]] or [[anaerobic bacteria]].
	* Nausea
	* Vomiting
	* Diarrhea
	* Rash
	* Headache
	* Dizziness

	~~As with other quinolones,~~ cinoxacin ~~may cause tendinitis or tendon rupture, particularly in older adults~~, ~~those on corticosteroid therapy~~, and in patients ~~with kidney, heart~~, ~~or lung transplants. Patients should be advised~~ to ~~stop taking cinoxacin at the first sign~~ of ~~tendon pain~~, ~~swelling, or inflammation~~.		==Side Effects==
			Common side effects of cinoxacin included [[nausea]], [[vomiting]], and [[diarrhea]]. Some patients experienced [[photosensitivity]], leading to increased risk of [[sunburn]]. Rarely, it could cause [[central nervous system]] effects such as [[dizziness]] and [[headache]].

	==~~Contraindications~~==		==Resistance==
	~~Cinoxacin is contraindicated in patients with a history of hypersensitivity~~ to cinoxacin~~, other quinolones,~~ or ~~any component~~ of the ~~formulation. Caution is advised~~ in ~~patients with a history of seizure disorders, as quinolones may lower the seizure threshold~~.		Bacterial resistance to cinoxacin can develop through mutations in the genes encoding DNA gyrase or through efflux mechanisms that reduce drug accumulation in bacterial cells. The emergence of resistance has limited the use of cinoxacin in clinical practice.

	==~~Drug Interactions~~==		==History==
	Cinoxacin ~~may interact with several other medications, including:~~		Cinoxacin was introduced in the 1970s as one of the first quinolone antibiotics. It was a precursor to the development of more advanced quinolones, such as [[ciprofloxacin]] and [[levofloxacin]], which have broader spectra of activity and improved pharmacokinetic properties.
	* Antacids containing magnesium or aluminum, as ~~well as sucralfate, can decrease~~ the ~~absorption of cinoxacin, leading~~ to ~~reduced efficacy.~~
	* Caffeine: Cinoxacin may increase the ~~half-life~~ of ~~caffeine~~, ~~leading to increased effects or toxicity.~~
	* Warfarin: Cinoxacin may enhance the effects of warfarin, ~~increasing the risk~~ of ~~bleeding~~.

	~~Patients should be advised~~ to ~~inform their healthcare provider~~ of ~~all medications they are taking~~, ~~including over~~-~~the-counter drugs and dietary supplements~~.		==Discontinuation==
			Due to the development of newer antibiotics with better safety and efficacy profiles, cinoxacin has been largely discontinued in many countries. It is no longer a first-line treatment for urinary tract infections.

	==~~Conclusion~~==		==Related pages==
	~~Cinoxacin is a quinolone antibiotic used in the treatment of uncomplicated urinary~~ tract infections caused by susceptible bacteria. Its mechanism of action involves the inhibition of bacterial DNA gyrase, leading to bacterial cell death. While effective, it is associated with certain adverse effects and drug interactions that should be considered before use. As with all antibiotics, it is important to use cinoxacin as directed by a healthcare provider to ensure the best possible outcome and to help prevent the development of antibiotic resistance.		* [[Quinolone]]
			* [[Urinary tract infection]]
			* [[Antibiotic resistance]]

	[[Category:Antibiotics]]		[[Category:Antibiotics]]
	[[Category:~~Quinolone antibiotics~~]]		[[Category:Quinolones]]

	~~{{medicine-stub}}~~

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2024-03-22T10:09:49Z

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New page

'''Cinoxacin''' is a synthetic [[antibacterial]] agent that belongs to the class of [[quinolone antibiotics]]. It is primarily used in the treatment of urinary tract infections (UTIs) caused by susceptible bacteria. Cinoxacin works by inhibiting the bacterial enzyme DNA gyrase, which is essential for DNA replication, transcription, repair, and recombination. This action leads to the death of the bacteria and the resolution of the infection.

==Mechanism of Action==
Cinoxacin exerts its antibacterial effect by targeting the DNA gyrase enzyme in bacteria. DNA gyrase is a type II topoisomerase that introduces negative supercoils into DNA, which is a critical step in DNA replication and transcription. By inhibiting this enzyme, cinoxacin prevents the replication of bacterial DNA, leading to the elimination of the bacteria causing the infection.

==Indications==
Cinoxacin is indicated for the treatment of acute, uncomplicated urinary tract infections caused by susceptible strains of the following microorganisms:
* [[Escherichia coli]]
* [[Proteus mirabilis]]
* [[Klebsiella pneumoniae]]
* [[Staphylococcus saprophyticus]]

It is important to note that cinoxacin is not recommended for the treatment of pyelonephritis or perinephric abscesses due to insufficient data supporting its efficacy in these conditions.

==Pharmacokinetics==
After oral administration, cinoxacin is absorbed from the gastrointestinal tract. Its bioavailability is approximately 90%, and peak plasma concentrations are reached within 1 to 2 hours. The presence of food can delay the absorption but does not significantly affect the overall bioavailability. Cinoxacin is minimally metabolized in the liver and is primarily excreted unchanged in the urine, where it achieves high concentrations that are effective against urinary pathogens.

==Adverse Effects==
The most common adverse effects associated with cinoxacin include:
* Nausea
* Vomiting
* Diarrhea
* Rash
* Headache
* Dizziness

As with other quinolones, cinoxacin may cause tendinitis or tendon rupture, particularly in older adults, those on corticosteroid therapy, and in patients with kidney, heart, or lung transplants. Patients should be advised to stop taking cinoxacin at the first sign of tendon pain, swelling, or inflammation.

==Contraindications==
Cinoxacin is contraindicated in patients with a history of hypersensitivity to cinoxacin, other quinolones, or any component of the formulation. Caution is advised in patients with a history of seizure disorders, as quinolones may lower the seizure threshold.

==Drug Interactions==
Cinoxacin may interact with several other medications, including:
* Antacids containing magnesium or aluminum, as well as sucralfate, can decrease the absorption of cinoxacin, leading to reduced efficacy.
* Caffeine: Cinoxacin may increase the half-life of caffeine, leading to increased effects or toxicity.
* Warfarin: Cinoxacin may enhance the effects of warfarin, increasing the risk of bleeding.

Patients should be advised to inform their healthcare provider of all medications they are taking, including over-the-counter drugs and dietary supplements.

==Conclusion==
Cinoxacin is a quinolone antibiotic used in the treatment of uncomplicated urinary tract infections caused by susceptible bacteria. Its mechanism of action involves the inhibition of bacterial DNA gyrase, leading to bacterial cell death. While effective, it is associated with certain adverse effects and drug interactions that should be considered before use. As with all antibiotics, it is important to use cinoxacin as directed by a healthcare provider to ensure the best possible outcome and to help prevent the development of antibiotic resistance.

[[Category:Antibiotics]]
[[Category:Quinolone antibiotics]]

{{medicine-stub}}