| Effect | None |
| Trial Design | Double blind |
| Trial Length | n/a |
| Number of Subjects | 48 |
| Sex | n/a |
Yohimbine was hypothesized to help treat phobia and fear of flying by acting as an adrenaline agonist, since it was hypothesized adrenaline played a key role in phobia pathology.
In conjunction with exposure therapy to reduce the phobia, yohimbine was ineffective at altering treatment compared to placebo.
