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The efficacy and safety of 50 mg penicillin G potassium troches for recurrent aphthous ulcers.

Author(s): Kerr AR, Drexel CA, Spielman AI.

Affiliation(s): Bluestone Center for Clinical Research, New York University, New York, USA. ark3@nyu.edu

Publication date & source: 2003, Oral Surg Oral Med Oral Pathol Oral Radiol Endod. , 96(6):685-94

PURPOSE: To determine both the efficacy and safety of the topical application of 50 mg penicillin G potassium troches (Cankercillin) in the treatment of minor recurrent aphthous stomatitis (RAS). STUDY DESIGN: The investigation used a phase 2 double-blind, randomized placebo-controlled trial with a no-treatment arm. Subjects with minor aphthous ulcers of duration <48 hours were followed for 1 week. The primary endpoint for efficacy was time (days) to complete ulcer resolution, and the secondary endpoint was time (days) to complete pain relief. RESULTS: Thirty-one, 33, and 36 subjects were randomized to the active treatment, placebo, and no-treatment arms, respectively. Baseline findings were heterogeneous across arms. Subjects who received penicillin G treatment had complete ulcer healing and pain relief significantly earlier than those in the placebo and no-treatment arms. No allergic reactions were observed. CONCLUSIONS: Topical penicillin G, by mechanisms which remain unclear, reduces the time of healing and pain relief of minor aphthous ulcers with minimal safety concerns. Larger phase 3 studies are necessary to confirm these findings.

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