Benzodiazepines have dominated the anti-anxiety treatment market since the 1960s but can cause side effects such as drowsiness, forgetfulness and clumsiness and, over the long-term, dependency. Serotonin-specific reuptake inhibitors (SSRIs) have also been used to treat anxiety but can take weeks to take effect. German scientists have been experimenting with a new drug called XBD173. In a week-long study involving 70 participants they compared it to a placebo and a benzodiazepine. They found that it produced a fast, anti-anxiety response with no withdrawal symptoms after use.
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