Norfazole

Metronidazole:

• Pharmacological action
• Pharmacokinetics
• Why is Norfazole prescribed?
• Dosage and administration
• Norfazole (Metronidazole) side effects, adverse reactions
• Norfazole contraindications
• Using during pregnancy and breastfeeding
• Special instructions
• Norfazole drug interactions
• Norfazole in case of emergency / overdose
• Norfazole (Metronidazole) reviews

Pharmacological action

Norfazole is an anti protozoal agent. It is believed that the mechanism of action is associated with DNA damage-sensitive microorganisms. Active against Trichomonas vaginalis, Gardnerella vaginalis, Giardia lamblia, Entamoeba histolytica, and obligate anaerobic bacteria (including Bacteroides spp., Fusobacterium spp.).

Aerobic bacteria are resistant to Norfazole (Metronidazole).

In combination with amoxicillin Norfazole (Metronidazole) is active against Helicobacter pylori. It is believed that amoxicillin inhibits the development of resistance of Helicobacter pylori to Norfazole (Metronidazole).

Pharmacokinetics

Norfazole (Metronidazole) well absorbed after oral administration. The bioavailability is 80%. Norfazole (Metronidazole) is distributed in tissues and body fluids. This medication crosses the placental barrier and the BBB. Binding to plasma proteins is 20%. Norfazole (Metronidazole) is metabolized in the liver by oxidation and binding to glucuronic acid. T_1/2 is 8 hours. This drug is excreted in the urine (60-80%) and feces (6-15%).

Why is Norfazole prescribed?

Trichomonazice vaginitis and urethritis in women, trichomonazice urethritis in men, giardiasis, amoebic dysentery, anaerobic infections caused by metronidazole-sensitive organisms, combination therapy of severe mixed aerobic-anaerobic infections. Preventing anaerobic infection in surgery (particularly abdominal, urinary tract). Chronic alcoholism.

Norfazole (Metronidazole) in combination with amoxicillin: chronic gastritis in acute phase, gastric ulcer and duodenal ulcer in acute phase, associated with Helicobacter pylori.

For external and topical use: treatment of acne vulgaris and pink, bacterial vaginosis, treatment of long-term healing of wounds and trophic ulcers.

Dosage and administration

Norfazole is administered for oral use for adults and children over 12 years in 7.5 mg / kg every 6 h or 250-750 mg 3-4 times / day. For children up to 12 years the dose is 5-16.7 mg / kg 3 times / day. For IV injections for adults and children over 12 years starting dose is 15 mg / kg, followed by 7.5 mg / kg every 6 hours or depending on the etiology of the disease - by 500-750 mg every 8 hours. The duration of treatment and frequency of tests is determined individually.

Intravaginally - 500 mg 1 time a night.

In combination with amoxicillin (2.25 g / day) daily dose of Norfazole (Metronidazole) is 1.5 g; multiplicity of admission - 3 times / day. For patients with severe renal impairment (creatinine clearance less than 30 ml / min) and / or liver daily dose of Norfazole (Metronidazole) is 1 g (amoxicillin - 1.5 g / day), the multiplicity of the reception is 2 times / day. This medication takes for external and local use 2 times / day, doses are determined individually.

The maximum daily dose for adults when taken orally and IV is 4 g.

Norfazole (Metronidazole) side effects, adverse reactions

Digestive system: nausea, vomiting, anorexia, metallic taste in the mouth.

CNS and peripheral nervous system: headache, nervousness, irritability, insomnia, dizziness, ataxia, weakness, confusion, depression, peripheral neuropathy, seizures, hallucinations.

Allergic reactions: skin rash, itching, hives.

Hemopoietic system: leucopenia.

Local reactions: irritation.

Other: arthralgia, burning sensation in the urethra.

Norfazole contraindications

Organic CNS lesions, blood diseases, liver problems, I trimester of pregnancy, hypersensitivity to Norfazole (Metronidazole).

Using during pregnancy and breastfeeding

Norfazole is rapidly crosses the placental barrier. In II and III trimester of pregnancy Norfazole (Metronidazole) is used only for health reasons.

Norfazole (Metronidazole) is excreted in breast milk. If necessary, use during lactation should solve the issue of termination of breastfeeding.

Special instructions

Patients should with careful use of Norfazole (Metronidazole) in liver diseases.

In combination with amoxicillin this medication is not recommended for patients younger than 18 years. During the treatment period it is necessary the regular control of pattern of peripheral blood.

During the treatment of Trichomonas vaginitis in women and Trichomonas urethritis in men patients should refrain from sexual activity, simultaneous treatment of both partners is mandatory.

During the taking of Norfazole (Metronidazole) there is a more dark staining of urine.

During treatment with Norfazole (Metronidazole) should avoid alcohol because to violations of the oxidation of alcohol can accumulate acetaldehyde. As a result may develop reactions similar to those characteristic of disulfiram (abdominal cramps, nausea, vomiting, headache, a sudden rush of blood to the face).

Norfazole drug interactions

Simultaneous administration of Norfazole (Metronidazole) with:

Norfloxacin:

• Norfazole (Norfloxacin) reviews

Indication: For the treatment of urinary tract infection

Norfazole (Norfloxacin) is a quinolone/fluoroquinolone antibiotic. Norfazole (Norfloxacin) is bactericidal and its mode of action depends on blocking of bacterial DNA replication by binding itself to an enzyme called DNA gyrase, which allows the untwisting required to replicate one DNA double helix into two. Notably the drug has 100 times higher affinity for bacterial DNA gyrase than for mammalian.