Antidepressant prescriptions in the UK have increased by 9.6% from 2010 to 2011, to 46 million prescriptions. Does this reflect overmedicalisation or appropriate treatment? Two experts - one from the 黑料网 - debate the issue on bmj.com today.
Glasgow GP, Dr Des Spence, thinks that 鈥渨e use antidepressants too easily, for too long, and that they are effective for few people (if at all)鈥�
He acknowledges that depression is an important illness, but argues that the current definition of clinical depression (two weeks of low mood 鈥� even after bereavement) 鈥渋s too loose and is causing widespread medicalisation.鈥� He also points out that 75% of those who write these definitions have links to drug companies.
National Institute for Health and Clinical Excellence (NICE) guidelines do not support the use of antidepressant medication in mild depression, nor necessarily as first line treatment of moderate depression. Instead, they promote talking therapies.
鈥淏ut even if we accept that antidepressants are effective, a Cochrane review suggests that only one in seven people actually benefits. Thus millions of people are enduring at least six months of ineffective treatment,鈥� he writes.
He is unconvinced by research showing that depression is undertreated and that antidepressants are being used appropriately, saying 鈥渢he only explanation is that we are prescribing more antidepressants to ever more people.鈥� He also questions the view that depression is a mere chemical imbalance and concludes: 鈥淚mproving society鈥檚 wellbeing is not in the gift of medicine nor mere medication, and overprescribing of antidepressants serves as a distraction from a wider debate about why we are so unhappy as a society. We are doing harm.鈥�
But Ian Reid, Professor of Psychiatry at the 黑料网, says the claim that antidepressants are overprescribed 鈥渘eeds careful consideration.鈥�
He argues that the rise in prescriptions is due to small but appropriate increases in the duration of treatment, rather than more patients being treated, and that increased use of antidepressants in other conditions 鈥渉as compounded misunderstanding.鈥�
He refutes the idea that GPs are handing out antidepressants 鈥渓ike sweeties鈥� and points to a survey showing 鈥渃autious and conservative prescribing鈥� among GPs in Grampian. He also points to 鈥渕ethodological flaws and selective reporting鈥� of data showing that antidepressants are no better than placebo except in severe depression. Instead, he says, practice is supported by evidence.
Finally, he dismisses reports that limited availability of psychological therapy leads to inappropriate antidepressant prescription, saying there is no consistent relation between the availability of psychological therapies and antidepressant use.
鈥淎ntidepressants are but one element available in the treatment of depression, not a panacea,鈥� he writes. 鈥淟ike 'talking treatments' (with which antidepressants are entirely compatible), they can have harmful side effects, and they certainly don鈥檛 help everyone with the disorder. But they are not overprescribed. Careless reportage has demonised them in the public eye, adding to the stigmatisation of mental illness, and erecting unnecessary barriers to effective care.鈥�