Metronidazole is a popularly used antibiotic to treat anaerobic bacteria, and in some cases, protozoa infections. Since at least 1980, dermatologists have been using this antibiotic as a way to treat roscaea symptoms.
The treatment should be applied to the affected area once or twice a day. Generally, the medication is applied on the whole face.
The goal of the treatment is to reduce inflammatory pustules or papules on the face, and is effective in treating acne-rosacea. Topical metronidazole will not have an effect in reducing redness and flushing symptoms. Improvement is gradual and may take up to 3 months to see its full effect.
How it works:
It has an antibiotic effect, as well as an anti-inflammatory effect, which is thought to quell the acne-like symptoms. The anti-bacterial effect may help control demodex mites, which may play a role in rosacea, although this has yet to be conclusively established.
Burning and irritation are the most common side-effects for topical use if this drug.
- Metrogel 0.75%
- Metrocream 0.75% - Galderma
- Metrolotion 0.75%
- Noritate 1% - Dermik
- Rosasol 1% plus sunscreen - Stiefel (Canada only)