ANTI-INFECTIVES Antibacterials Nitroimidazoles

AMH 2022 section 5.1.7

Active ingredients (generic names)

METRONIDAZOLE (me-tro-ni-da-zole)

Tablets

Mixture.

medicine - injection IV.jpg

Suppositories.

What it is used for
  • Infections, eg giardia, dental, skin and STIs

Dosesmetronidazole

How it works
  • An antibiotic that stops bacteria from making DNA.  DNA is important for the bacteria’s growth
  • Different germs need different antibiotics. If not sure which one to use — check with doctor
Side effects
  • Metallic taste in mouth
  • Vaginal thrush (candida)

Nausea and vomiting

Abdominal pain

Diarrhoea

Dizzy

Warnings

Liver trouble

Interactions — Do not use together without medical consult

METRONIDAZOLE with

  • Alcohol 
  • Mycophenolate
  • Phenytoin
  • Warfarin
Tell the patient
  • If you get a metallic taste in your mouth that bothers you, suck on some lollies (if you don't have diabetes)
  • Take all the medicine — makes sure all the germs are gone and the infection doesn't come back

Take with food or milk — so medicine doesn’t make you feel sick

Do not drink alcohol (grog)

Drinking alcohol during treatment and for 3 days after will make you feel sick

Finish medicine
— even if you feel better

Do not drive or operate
machinery if dizzy or faint

Warning stickers:

Metronidazole tablets 2xref-slash icon, 5xref-slash icon, Bxref-slash icon 

Metronidazole medicine mixture 2xref-slash icon, 5xref-slash icon, Cxref-slash icon

Check
  • Follow-up when antibiotic treatment finished to make sure infection is gone. If not — medical consult