I have said this elsewhere, but GPs should not be diagnosing depression or prescribing medication for it. The NHS's mental health policies are completely arse about face. Between 2000 and 2010 I was offered anti-depressant medication around 20 times by various GPs when no actual diagnosis was made. It was not until 2010 that I was actually referred to a mental health doctor, who then made a diagnosis which helped, but the various GPs had missed that I had a simple physiological medical problem that was not diagnosed fully until last year, and which is resolved by taken prescribed vitamin D supplement.
In my opinion GP's should by thinking like this:
1) The GP is not going to be the person to solve this. They are just going to make the initial assessment and medical tests and then pass the individual to mental health experts.
2) Are there life events or situations that could be making the person miserable? If so, some mental health special theraphy might be part of the solutions.
3) Are there any potential medical factors? Routinely do bloods tests, including vitamin D, and parathyroid hormone, thyroid, and so on. Either way, do the tests check the levels, call the patient to discuss if there are findings, and also pass the patient to mental health specialists for a mental health checkup.
4) Is the patient looking after themselves in regards to drugs and alcohol and diet? Again, assess the medical impact of this, refer to the relevant drugs/alcohol/diet specialists.
GPs should be the first point of contact and only have a remit for the medical aspect. No GP should be allowed to give anti-depressant medication to patients. GPs do not have the skills or time available to them to be able to make an adequate assessment in this regard.