Novel Treatment of Phobias in Children and Teenagers

INTERVENTION: D‐Cycloserine and exposure therapy versus pill placebo and exposure therapy. Participants receive one individual intensive session (3 hours) of exposure therapy. The session involves assisting participants to systematically and gradually face their fears. Half the participants will receive D‐Cycloserine (either 35mg or 70mg depending on child weight) at the commencement of the exposure therapy session. Each dose is given orally in a capsule. The exposure therapy is delivered via trained psychologists. CONDITION: Pediatric Specific Phobia Disorder PRIMARY OUTCOME: Anxiety Disorders Interview Schedule (ADIS) ‐ Child/ Parent Versions Childrens Global Assessment Scale (CGAS) ‐ This a global measure of level of functioning in children and adolscents. SECONDARY OUTCOME: Fear Survey Schedule for Children Revised Spence Children's Anxiety Scale INCLUSION CRITERIA: 1. Primary Diagnosis of any Anxiety Disorder 2. DSM‐IV‐TR Specific Phobia Diagnosis 3. If taking a selective‐serotonin reuptake inhibitor (SSRI) medication, dose must be stable for one‐month prior to study entry and remain unchanged.