Metronidazole (Metronidazole)

Trade Name : Metronidazole

KAISER FOUNDATION HOSPITALS

TABLET

Strength 500 mg/1

METRONIDAZOLE Nitroimidazole Antimicrobial [EPC],Nitroimidazoles [CS]

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Trade Marks displayed in compliance with provisions of: Trademark Act, 1999 u/s 30 and 30 (1) of "Fair use"

GNH India is WHO GDP and ISO 9001 2015 Certified Pharmaceutical Wholesaler/ Supplier/ Exporters/ Importer from India of Metronidazole (Metronidazole) which is also known as Metronidazole and Manufactured by KAISER FOUNDATION HOSPITALS. It is available in strength of 500 mg/1 per ml. Read more

Metronidazole (Metronidazole) is supplied for Tenders/ Emergency imports/ Un - licensed, Specials, Orphan drug/ Name patient line/ RLD supplies/ Reference listed drugs/ Comparator Drug/ Bio-Similar/ Innovator samples For Clinical trials.  Click to know price.     Read less

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We deliver your medicines through a validated cold chain shipment process. This process is used as these medicines need to manufactured, transported and stored at very specific temperatures, utilizing thermal and refrigerated packaging methods.

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We deliver your medicines through a validated cold chain shipment process. This process is used as these medicines need to manufactured, transported and stored at very specific temperatures, utilizing thermal and refrigerated packaging methods.

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About GNH

We deliver your medicines through a validated cold chain shipment process. This process is used as these medicines need to manufactured, transported and stored at very specific temperatures, utilizing thermal and refrigerated packaging methods.

We deliver your medicines through a validated cold chain shipment process. This process is used as these medicines need to manufactured, transported and stored at very specific temperatures, utilizing thermal and refrigerated packaging methods.

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  • No data
  • Rx only
  • To reduce the development of drug-resistant bacteria and maintain the effectiveness of metronidazole and other antibacterial drugs, metronidazole should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.
  • WARNING
  • Metronidazole has been shown to be carcinogenic in mice and rats (see n n n ). Unnecessary use of the drug should be avoided. Its use should be reserved for the conditions described in the n n n section below.n nn
  • Metronidazole, USP is an oral synthetic antiprotozoal and antibacterial agent, 1n n n -Imidazole-1-ethanol, 2-methyl-5-nitro, which has the following structural formula:n nn
  • Cn n n Hn n n Nn n n On n n M.W. 171.15n nn
  • Each tablet for oral administration contains 250 mg or 500 mg of metronidazole, USP. Inactive ingredients include silicified microcrystalline cellulose, crospovidone, colloidal silicon dioxide and hydrogenated vegetable oil.
  • Absorption
  • Disposition of metronidazole in the body is similar for both oral and intravenous dosage forms. Following oral administration, metronidazole is well absorbed, with peak plasma concentrations occurring between one and two hours after administration.
  • Plasma concentrations of metronidazole are proportional to the administered dose. Oral administration of 250 mg, 500 mg, or 2,000 mg produced peak plasma concentrations of 6 mcg/mL, 12 mcg/mL, and 40 mcg/mL, respectively. Studies reveal no significant bioavailability differences between males and females; however, because of weight differences, the resulting plasma levels in males are generally lower.
  • Distribution
  • Metronidazole is the major component appearing in the plasma, with lesser quantities of metabolites also being present. Less than 20% of the circulating metronidazole is bound to plasma proteins. Metronidazole appears in cerebrospinal fluid, saliva, and breast milk in concentrations similar to those found in plasma. Bactericidal concentrations of metronidazole have also been detected in pus from hepatic abscesses.
  • Metabolism/Excretion
  • The major route of elimination of metronidazole and its metabolites is via the urine (60% to 80% of the dose), with fecal excretion accounting for 6% to 15% of the dose. The metabolites that appear in the urine result primarily from side-chain oxidation [1-(u03b2-hydroxyethyl)-2-hydroxymethyl-5-nitroimidazole and 2-methyl-5-nitroimidazole-1-yl-acetic acid] and glucuronide conjugation, with unchanged metronidazole accounting for approximately 20% of the total. Both the parent compound and the hydroxyl metabolite possess n n n antimicrobial activity.n nn
  • Renal clearance of metronidazole is approximately 10 mL/min/1.73 mn n n . The average elimination half-life of metronidazole in healthy subjects is eight hours.n nn
  • Renal Impairment
  • Decreased renal function does not alter the single-dose pharmacokinetics of metronidazole.
  • Subjects with end-stage renal disease (ESRD; CLn n n = 8.1 u00b1 9.1 mL/min) and who received a single intravenous infusion of metronidazole 500 mg had no significant change in metronidazole pharmacokinetics but had 2 fold higher Cn n n of hydroxy-metronidazole and 5 fold higher Cn n n of metronidazole acetate, compared to healthy subjects with normal renal function (CLn n n = 126 u00b1 16 mL/min). Thus, on account of the potential accumulation of metronidazole metabolites in ESRD patients, monitoring for metronidazole associated adverse events is recommended (see n n n ).n nn
  • Effect of Dialysis
  • Following a single intravenous infusion or oral dose of metronidazole 500 mg, the clearance of metronidazole was investigated in ESRD subjects undergoing hemodialysis or continuous ambulatory peritoneal dialysis (CAPD). A hemodialysis session lasting for 4 to 8 hours removed 40% to 65% of the administered metronidazole dose, depending on the type of dialyzer membrane used and the duration of the dialysis session. If the administration of metronidazole cannot be separated from the dialysis session, supplementation of metronidazole dose following hemodialysis should be considered (see n n n ). A peritoneal dialysis session lasting for 7.5 hours removed approximately 10% of the administered metronidazole dose. No adjustment in metronidazole dose is needed in ESRD patients undergoing CAPD.n nn
  • Hepatic Impairment
  • Following a single intravenous infusion of 500 mg metronidazole, the mean AUCn n n of metronidazole was higher by 114% in patients with severe (Child-Pugh C) hepatic impairment, and by 54% and 53% in patients with mild (Child-Pugh A) and moderate (Child-Pugh B) hepatic impairment, respectively, compared to healthy control subjects. There were no significant changes in the AUCn n n of hydroxyl-metronidazole in these hepatically impaired patients. A reduction in metronidazole dosage by 50% is recommended in patients with severe (Child-Pugh C) hepatic impairment (see n n n ). No dosage adjustment is needed for patients with mild to moderate hepatic impairment. Patients with mild to moderate hepatic impairment should be monitored for metronidazole associated adverse events (see n n n and n n n ).n nn
  • Geriatric Patients
  • Following a single 500 mg oral or IV dose of metronidazole, subjects > 70 years old with no apparent renal or hepatic dysfunction had a 40% to 80% higher mean AUC of hydroxy-metronidazole (active metabolite), with no apparent increase in the mean AUC of metronidazole (parent compound), compared to young healthy controls < 40 years old. In geriatric patients, monitoring for metronidazole associated adverse events is recommended (see n n n ).n nn
  • Pediatric Patients
  • In one study, newborn infants appeared to demonstrate diminished capacity to eliminate metronidazole. The elimination half-life, measured during the first 3 days of life, was inversely related to gestational age. In infants whose gestational ages were between 28 and 40 weeks, the corresponding elimination half-lives ranged from 109 to 22.5 hours.
  • No data
  • No data
  • Central and Peripheral Nervous System Effects
  • Encephalopathy and peripheral neuropathy: Cases of encephalopathy and peripheral neuropathy (including optic neuropathy) have been reported with metronidazole.
  • Encephalopathy has been reported in association with cerebellar toxicity characterized by ataxia, dizziness, and dysarthria. CNS lesions seen on MRI have been described in reports of encephalopathy. CNS symptoms are generally reversible within days to weeks upon discontinuation of metronidazole. CNS lesions seen on MRI have also been described as reversible.
  • Peripheral neuropathy, mainly of sensory type has been reported and is characterized by numbness or paresthesia of an extremity.
  • Convulsive seizures have been reported in patients treated with metronidazole.
  • Aseptic meningitis: Cases of aseptic meningitis have been reported with metronidazole. Symptoms can occur within hours of dose administration and generally resolve after metronidazole therapy is discontinued.
  • The appearance of abnormal neurologic signs and symptoms demands the prompt evaluation of the benefit/risk ratio of the continuation of therapy (see n n n ).n nn
  • No data
  • The following reactions have been reported during treatment with metronidazole:
  • Central Nervous System:u00a0 The most serious adverse reactions reported in patients treated with metronidazole have been convulsive seizures, encephalopathy, aseptic meningitis, optic and peripheral neuropathy, the latter characterized mainly by numbness or paresthesia of an extremity. Since persistent peripheral neuropathy has been reported in some patients receiving prolonged administration of metronidazole, patients should be specifically warned about these reactions and should be told to stop the drug and report immediately to their physicians if any neurologic symptoms occur. In addition, patients have reported headache, syncope, dizziness, vertigo, incoordination, ataxia, confusion, dysarthria, irritability, depression, weakness, and insomnia (see n n n ).n nn
  • Gastrointestinal: The most common adverse reactions reported have been referable to the gastrointestinal tract, particularly nausea, sometimes accompanied by headache, anorexia, and occasionally vomiting; diarrhea; epigastric distress; and abdominal cramping and constipation.
  • Mouth: A sharp, unpleasant metallic taste is not unusual. Furry tongue, glossitis, and stomatitis have occurred; these may be associated with a sudden overgrowth of n n n which may occur during therapy.n nn
  • Dermatologic: Erythematous rash and pruritus.
  • Hematopoietic: Reversible neutropenia (leukopenia); rarely, reversible thrombocytopenia.
  • Cardiovascular: Flattening of the T-wave may be seen in electrocardiographic tracings.
  • Hypersensitivity: Urticaria, erythematous rash, Stevens-Johnson syndrome, toxic epidermal necrolysis, flushing, nasal congestion, dryness of the mouth (or vagina or vulva), and fever.
  • Renal: Dysuria, cystitis, polyuria, incontinence, and a sense of pelvic pressure. Instances of darkened urine have been reported by approximately one patient in 100,000. Although the pigment which is probably responsible for this phenomenon has not been positively identified, it is almost certainly a metabolite of metronidazole and seems to have no clinical significance.
  • Other: Proliferation of n n n in the vagina, dyspareunia, decrease of libido, proctitis, and fleeting joint pains sometimes resembling u201cserum sickness.u201d Rare cases of pancreatitis, which generally abated on withdrawal of the drug, have been reported.n nn
  • Patients with Crohnu2019s disease are known to have an increased incidence of gastrointestinal and certain extraintestinal cancers. There have been some reports in the medical literature of breast and colon cancer in Crohnu2019s disease patients who have been treated with metronidazole at high doses for extended periods of time. A cause and effect relationship has not been established. Crohnu2019s disease is not an approved indication for metronidazole tablets.
  • Single oral doses of metronidazole, up to 15 g, have been reported in suicide attempts and accidental overdoses. Symptoms reported include nausea, vomiting, and ataxia.
  • Oral metronidazole has been studied as a radiation sensitizer in the treatment of malignant tumors. Neurotoxic effects, including seizures and peripheral neuropathy, have been reported after 5 to 7 days of doses of 6 to 10.4 g every other day.
  • There is no specific antidote for metronidazole overdose; therefore, management
  • of the patient should consist of symptomatic and supportive therapy.
  • No data
  • Metronidazole Tablets USP are available as follows:
  • 500 mg - White, oblong, convex tablets debossed u201cn n n u201du00a0 on one side and unscored on the other side. Available in bottles of 14, 21, 28 and 30.n nn
  • NDCn- -1482-
  • METRONIDAZOLEn n n Tablets USPn n n 500 mgn n n
  • Rx only
  • 14 TABLETS
  • TEVA
  • Repackaged By:
  • KAISER FOUNDATION HOSPITALS
  • Livermore, CA 94551

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