Noritate Drug Information
Generic name: METRONIDAZOLE
Nitroimidazole Antimicrobial [EPC]
Uses of Noritate
Noritate is indicated for the topical treatment of inflammatory lesions and erythema of rosacea.
Dosage & Administration of Noritate
Areas to be treated should be cleansed before application of Noritate. Apply and rub in a thin film of Noritate once daily to entire affected area(s). Patients may use cosmetics after application of Noritate.
Side Effects of Noritate
The majority of adverse reactions were mild to moderate in severity. Two patients treated with Noritate once daily discontinued treatment because of adverse events: one for a severe flare of comedonal acne and one for rosacea aggravated. Additional clinical adverse effects reported spontaneously since the drug was marketed are uncommon and include tingling or numbness of extremities, allergic reactions, skin and eye irritation, rash, headache, nausea and dry mouth.
To report SUSPECTED ADVERSE REACTIONS, contact Bausch Health US, LLC at 1-800-321-4576 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Drug Interactions with Noritate
Drug Interactions: Oral metronidazole has been reported to potentiate the anticoagulant effect of coumarin and warfarin resulting in a prolongation of prothrombin time. Drug interactions should be kept in mind when Noritate is prescribed for patients who are receiving anticoagulant treatment, although they are less likely to occur with topical metronidazole administration because of low absorption. (See CLINICAL PHARMACOLOGY, Pharmacokinetics.)
Pregnancy Safety for Noritate
- Pregnancy: Teratogenic Effects: There are no adequate and well-controlled studies with the use of Noritate in pregnant women. Metronidazole crosses the placental barrier and enters the fetal circulation rapidly. No fetotoxicity was observed after oral administration of metronidazole to rats or mice at 200 and 20 times, respectively, the expected clinical dose. However, oral metronidazole has shown carcinogenic activity in rodents. Because animal reproduction studies are not always predictive of human response, Noritate should be used during pregnancy only if clearly needed.
Pediatric Use of Noritate
Pediatric Use: Safety and effectiveness in pediatric patients have not been established.
Contraindications for Noritate
Noritate is contraindicated in those patients with a history of hypersensitivity to metronidazole or to any other ingredient in this formulation.
Clinical Studies of Noritate
- Clinical Studies: Safety and efficacy of Noritate were evaluated in two randomized vehicle-controlled clinical studies for the treatment of rosacea, which excluded patients who had nodules, moderate or severe rhinophyma, dense telangiectases, plaque-like facial edema or ocular involvement and those who had a history of not responding to metronidazole therapy for rosacea. Of the patients included in the efficacy database (n=416), there were 142 men and 274 women. Endpoint efficacy data comparisons for patients treated with daily Noritate or vehicle applications are listed below. Inflammatory Lesion Counts and Erythema Severity Scores in Two Clinical Trials for Rosacea *Statistically significant differences between Noritate and vehicle groups with p≤0.05.
- Erythema scores: 0=none, 1=mild, 2=moderate and 3=severe.
- Safety Studies: Studies of contact sensitization (n=258), phototoxicity (n=21), and photocontact sensitization (n=29) of Noritate were conducted. No evidence of sensitization or phototoxicity was seen in these studies.
| Noritate | Vehicle | |||||||
|---|---|---|---|---|---|---|---|---|
| Study 1 | Study 2 | Study 1 | Study 2 | |||||
| N | Result | N | Result | N | Result | N | Result | |
| Papules + Pustules Count | ||||||||
| Baseline | 89 | 15 | 92 | 19 | 50 | 18 | 49 | 17 |
| Week 10 | 80 | 7* | 82 | 8 | 45 | 15 | 41 | 12 |
| Reduction | 49% | 58% | 17% | 30% | ||||
| Papules Count | ||||||||
| Baseline | 89 | 13 | 92 | 17 | 50 | 15 | 49 | 15 |
| Week 10 | 80 | 7* | 82 | 7 | 45 | 12 | 41 | 11 |
| Reduction | 41% | 55% | 14% | 28% | ||||
| Erythema Score | ||||||||
| Baseline | 89 | 2.2 | 92 | 2.3 | 50 | 2.2 | 49 | 2.2 |
| Week 10 | 80 | 1.3* | 82 | 1.4* | 45 | 1.7 | 40 | 1.8 |
| Reduction | 42% | 40% | 25% | 19% | ||||
Drug information sourced from the FDA. This content is for informational purposes only and does not constitute medical advice. Consult a healthcare professional before making any medication decisions.
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