The clinical literature on antidepressantdrugs is massive, since large-scale, rigorous studies are required for market approval from the Food and Drug Administration (FDA).
The spray, based on a natural brain chemical, could be effective within two hours, compared to several days for some of the most widely used antidepressantdrugs.
该喷剂以天然大脑化学物质为基础，两小时内就可见效，而通常使用的抗抑郁药要几天才见效。
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A common problem with antidepressant medication is that patients often stop taking the drugs far too soon.