Ornidazole

Generic Details

Generic Name

Ornidazole

Other Names

  • Tiberal
  • Dazolic
  • Ornizid

Drug Class

  • Antiprotozoal
  • Antibacterial

Chemical Formula

C7H10ClN3O3S

Molecular Weight

219.7 g/mol

Mechanism of Action

  • Ornidazole is a synthetic nitroimidazole derivative with antiprotozoal and antibacterial properties. It works by entering the microbial cell, where it interacts with DNA and causes damage, leading to cell death.

Indications

  • Anaerobic bacterial infections
  • Protozoal infections
  • Trichomoniasis
  • Amebiasis
  • Giardiasis

Common Dosage Forms

  • Tablet
  • Suspension

Typical Dosage

  • 500 mg orally twice a day for 5-10 days

Pediatric Dosage

  • Dosage varies based on weight and age. Consult a pediatrician for appropriate dosing.

Geriatric Dosage

  • Dosage adjustment may be necessary based on renal function. Consult a healthcare provider for appropriate dosing in the elderly.

Side Effects

  • Nausea
  • Vomiting
  • Headache
  • Metallic taste in the mouth
  • Dizziness
  • Peripheral neuropathy

Contraindications

  • Hypersensitivity to nitroimidazole compounds
  • First-trimester pregnancy

Pregnancy Category

  • C - Risk cannot be ruled out

Lactation Safety

  • Limited data available. Consult a healthcare provider before use during lactation.

Drug Interactions

  • Avoid alcohol during treatment with ornidazole as it may cause a disulfiram-like reaction

Overdose Symptoms

  • Nausea
  • Vomiting
  • Seizures
  • Encephalopathy

Antidote for Overdose

  • Symptomatic and supportive treatment

Storage Conditions

  • Store at room temperature away from moisture and heat

Pharmacokinetics

  • Absorption: Well absorbed after oral administration
  • Distribution: Widely distributed in tissues and body fluids
  • Metabolism: Undergoes hepatic metabolism
  • Excretion: Primarily excreted in urine

Precautions

  • Caution in patients with hepatic impairment
  • Monitor for neurological side effects
  • Avoid use in the first trimester of pregnancy

Warnings

  • May cause dizziness, caution when driving or operating machinery

Others

  • Ornidazole is not recommended for use in children under 3 years of age.