Doses are oral and for adults unless otherwise stated. Visit the Health Products Regulatory Board website or the printed Irish Medicines Formulary for drug SPCs, dosage, contraindications, interactions, or IMF/BNF/BNFC/MIMS. See guidance on dosing in children for quick reference dosage/weight guide.

Letters indicate strength of evidence range from A+ (systematic review) to D (informal opinion). Statins can interact with some antibiotics and increase the risk of rhabdomyolysis. Amiodarone and drugs which prolong the QT interval can interact with many antibiotics. Many antibiotics increase the risk of bleeding with anticoagulants. Please refer to our Drug Interactions Table for further information.

Comments from Expert Advisory Committee

  1. Trichomoniais is caused by the flagellated protozoan, Trichomonas vaginalis
  2. Trichomoniasis is a notifiable disease. The complete list of notifiable diseases and information on the notification process is available at the HPSC

Trichomonas testing is performed on the same platform (Hologic Aptima) as the Chlamydia and Gonorrhoea testing, and can be performed on the same sample.

The Aptima specimen collection kits are available through the NVRL 'swab shop'


See guidance on dosing in children for quick reference dosage/weight guide.

Treatment Dose TX Duration
metronidazoleA- 400 mg BD
or 2 g in single dose
5 days
clotrimazole 100 mg pessary 6 days

We recommend patients use the website developed by HSE/ICGP/IPU partnership for tips on how to get better from common infections without using antibiotics, what you can do for yourself or a loved one and when to seek help.

Patient Information

Reviewed November 2018

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