The effect of clonazepam to reduce anxiety

INTERVENTION: Intervention 1: One dose of clonazepam 2 m.g one hour before surgery. Intervention 2: Placebo one hour before surgery. One dose of clonazepam 2 m.g one hour before surgery Placebo Placebo one hour before surgery Treatment ‐ Drugs CONDITION: Anxiety. ; Phobic anxiety disorders Phobic anxiety disorders PRIMARY OUTCOME: Anxiety. Timepoint: 1 hour. Method of measurement: Visual Analogue Scale. Blood pressure. Timepoint: 1 hour. Method of measurement: mm HG by using a Digital Manometer. Oxygen saturation of blood. Timepoint: 1 hour. Method of measurement: percent by Digital Pulse Oximetry. Pulse rate. Timepoint: 1 hour. Method of measurement: number per minutes by Digital Pulse Oximetry. INCLUSION CRITERIA: INCLUSION CRITERIA: patients referred to the Department of Surgery, Shiraz Dental School. Exclusion Criteria: children and people under 18; addicts; smoking; all systemic diseases; women during menstruation; and all drugs consumers.