ADVERSE REACTIONS
In a controlled clinical trial, safety data from 141 patients who used MetroLotion® Topical Lotion (n=71), or the lotion vehicle (n=70), twice daily and experienced a local cutaneous adverse event which may or may not have been related to the treatments include: local allergic reaction, MetroLotion® Topical Lotion 2 (3%), lotion vehicle 0; contact dermatitis, MetroLotion® Topical Lotion 2 (3%), lotion vehicle 1 (1%); pruritus, MetroLotion® Topical Lotion 1 (1%), lotion vehicle 0; skin discomfort (burning and stinging), MetroLotion® Topical Lotion 1 (1%), lotion vehicle 2 (3%); erythema, MetroLotion® Topical Lotion 4 (6%), lotion vehicle 0; dry skin, MetroLotion® Topical Lotion 0, lotion vehicle 1 (l%); and worsening of rosacea, MetroLotion® Topical Lotion 1 (1%), lotion vehicle 7 (10%).
The following additional adverse experiences have been reported with the topical use of metronidazole: skin irritation, transient redness, metallic taste, tingling or numbness of extremities, and nausea.
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