What is Noritate For?
Noritate is FDA-approved specifically for the topical treatment of inflammatory lesions and erythema of rosacea 1.
Active Ingredient and Mechanism
Noritate contains metronidazole 1% cream, a nitroimidazole antimicrobial agent 1. The exact mechanisms by which metronidazole reduces inflammatory lesions of rosacea remain unknown 1.
Clinical Efficacy
In two randomized, vehicle-controlled trials for rosacea treatment, Noritate demonstrated:
- 49-58% reduction in papules and pustules at 10 weeks (compared to 17-30% with vehicle)
- 40-42% reduction in erythema severity scores (compared to 19-25% with vehicle)
- Statistically significant improvements over vehicle in both inflammatory lesion counts and erythema 1
Application and Pharmacokinetics
- Once-daily application to affected facial areas
- Minimal systemic absorption: mean plasma concentration only 27.6 ng/mL (approximately 1% of a 250 mg oral dose)
- Peak plasma levels occur 8-12 hours after topical application 1
Important Safety Considerations
Avoid eye contact - conjunctivitis has been reported with facial use 1. If local skin irritation occurs, discontinue use immediately.
Key Precautions:
- Use with caution in patients with blood dyscrasia history (metronidazole is a nitroimidazole) 1
- Potential drug interaction: may potentiate anticoagulant effects of warfarin/coumarin, though less likely with topical administration due to low absorption 1
- Pregnancy Category B: use only if clearly needed during pregnancy 1
Common Pitfall
Do not confuse Noritate (metronidazole) with methylprednisolone aceponate - these are entirely different medications. The expanded question incorrectly suggested Noritate contains methylprednisolone aceponate, but Noritate is actually a metronidazole formulation for rosacea, not a corticosteroid 1.