The purpose of this study is to examine in prospective, double-blinded randomised manner the ability of novel articaine-containing lozenge to enhance the procedure related compliance (compared to placebo) of the adult patients undergoing upper gastrointestinal endoscopy.
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Percentage of participants with 15% change in tolerability points according to Numeric Rating Scale (compared to baseline Numeric Rating Scale).
Timeframe: 30 minutes after the procedure