Antibacterial eases phobia
A common antibacterial drug has helped phobics to overcome their fear of heights. Combined with standard behavioural therapy, D-cycloserine (DCS) speeded recovery fourfold compared with therapy alone.
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Davis's team treated 30 acrophobics - people with a severe fear of heights. Wearing specially designed goggles hooked up to a PC, the subjects rode a virtual glass elevator. After two sessions, patients reported a 10% decrease in anxiety levels. When the sessions were supplemented with DCS, their anxiety dropped 50%.
After three months back in the real world, drug-treated patients had had twice as many high-rise encounters as their therapy-only counterparts. They were more likely to drive over high bridges and take elevator rides, says Davis. Two sessions of DCS and virtual reality are equivalent to eight sessions of therapy alone, he claims.