Skip to content

Flagyl Er

Metronidazole

Intended to relieve bacterial vaginosis to support local microflora restoration and target anaerobic pathogens.

Active ingredient
Metronidazole
Route
Oral use
Form
Extended-Release Tablet
Strengths
200mg · 400mg

Prescription and consultation requirements for Flagyl Er vary by destination and are determined by the fulfilment partner.

Flagyl Er details

Alternative names
metronidazole
Therapeutic class
Nitroimidazole Antibacterial
Pharmacological class
Nitroimidazole
Known off-label uses
trichomoniasis; amebiasis
Minor side effects
nausea; metallic taste; headache
Moderate side effects
vaginal candidiasis; abdominal cramps; decreased appetite
Dosage forms
Extended-Release Tablet
Administration route
Oral use
Supply category
Prescription-only medicine (POM)
Manufacturer
Pfizer
Onset Time
1–2 hours
Duration
24 hours
Storage instructions
Store below 25°C.
Drug interactions
Alcohol; Warfarin; Disulfiram
Age restrictions
Approved for post-menarche females.
Contraindications

pregnancy in first trimester; concurrent alcohol consumption; disulfiram use within two weeks

Serious side effects

aseptic meningitis, requires immediate medical attention; peripheral neuropathy, requires immediate medical attention; seizures, requires immediate medical attention

Patient summary

intended to relieve bacterial vaginosis to support local microflora restoration and target anaerobic pathogens.

Mechanism of action

Enters anaerobic microbial cells where it is reduced to active metabolites that disrupt DNA helical structure, stopping synthesis.

Pregnancy and breastfeeding

TGA Category B: Avoid in the first trimester of pregnancy. Breastfeeding: Suspend therapy during administration.