Witnessing or being on the receiving end of bullying at work heightens the risk of employees being prescribed antidepressants, sleeping pills, and tranquilizers, according to research published in BMJ Open.

Workplace bullying is linked to poorer mental health among employees, but it is not clear if that translates into a greater need for drug treatment, and if the impact is similar for those witnessing bullying and those who find themselves on the receiving end of it.

The researchers asked 6,606 public service employees working for the City of Helsinki in Finland—the largest employer in the country with 200 venues—about their experiences of workplace bullying, both personal and witnessed, between 2000 and 2002.

National registry data on purchases of prescribed “psychoactive” drugs—antidepressants, sedatives, tranquilizers, and sleeping pills—were tracked for 3 years before the survey and for 5 years afterwards.

All participants were aged between 40 and 60, and were part of the Helsinki Health Study.
One in 20 employees said they were currently being bullied. A further one in five (18%) women and around one in eight men (12%) said they had been bullied before, either in the same job or in a previous job with another employer.

Around half the respondents said that they had witnessed bullying in the workplace at least occasionally, while around one in 10 said they had witnessed it often.

The findings showed that workplace bullying was associated with subsequent prescriptions for psychoactive drugs in both men and women.

The associations remained after taking account of factors likely to influence the results, including previous medication for mental health issues, childhood bullying, social class, and weight.