Psychiatric nursing has changed significantly since I wrote a similar article almost 10 years ago. Community psychiatric nurses now focus their attentions almost entirely on people with serious and enduring mental illnesses and undertake case management roles in community teams. Many nurses have now been trained in the use of psychosocial interventions and there have been particular advances in the training of nurses in medication management. In turn, prescribing by nurses has become a reality and this role will expand rapidly over the next few years. Unfortunately, the potential for nurses to deliver cognitive–behavioural therapy to those with common mental disorders has not been realised and it is unlikely that this situation will change. Psychiatric nursing roles have increased in the forensic system and nurses are now working with people with dangerous and severe personality disorders and within prison healthcare. The education and training of nurses has undergone a fundamental shift and nurses of the future are likely to be graduates. Here I discuss the implications of these changes.

Disasters are complex events that challenge the coping abilities of individuals and communities. This article reviews the likely impact of such events and factors that compromise the ability of survivors to cope with that impact. The principles of early intervention are also considered, particularly with regard to the role of a mental health adviser. This role is an important and demanding one, and its aims and principles of professional conduct should be carefully scrutinised.

Effective pharmacological management of depression resistant to antidepressant medication is best carried out in the context of a supportive and collaborative relationship, following a mutually agreed care plan. Simpler pharmacological approaches such as switching antidepressant classes are tried first, then augmentation is used if needed. New classes of antidepressants have made antidepressant combination a popular augmentation strategy, but lithium addition has most supporting evidence. The use of atypical antipsychotics as augmenting agents is increasing. For patients unresponsive to these strategies, monoamine oxidase inhibitors and electroconvulsive therapy remain important. Large randomised pragmatic trials are needed to help clinicians and patients make better treatment choices.

Bipolar disorder is a recurring, often chronic, illness characterised by periods of mania and depression with variable inter-episode recovery. For the majority of patients it is the depressive component of this illness that contributes to most of the associated morbidity, social disability and mortality. Research and clinical experience suggest that acute treatment and prevention of depressive episodes is by far the most challenging aspect of the care of patients with the disorder. This review examines the contribution of depression to the course and outcome of bipolar disorder as well as diagnostic difficulties that often complicate treatment and may lead to inappropriate medication. Key studies that form the evidence base of treatment recommendation for bipolar depression are presented and areas of therapeutic uncertainty are highlighted.

The presence of cognitive deficits in schizophrenic illness has been extensively documented, and deficits in memory and executive functioning may be related to poor prognosis. Targeting these deficits during the early phase has potential benefits. The neural basis for cognitive deficits in schizophrenia is not well understood, and hence pharmacological interventions alone are insufficient. Future strategies should focus on pharmacological interventions combined with psychological techniques such as cognitive remediation. This review summarises recent findings relating to first-episode schizophrenia.

Generally, people with learning disabilities now live in community settings and use generic health services. Those who develop behavioural or psychiatric disturbances may be taken to a hospital accident and emergency (A&E) department. An A&E visit can be the starting point of a comprehensive assessment of these disturbances. This article provides a framework for the initial assessment, management and disposition of patients with learning disabilities and behavioural disturbance presenting to an A&E department.

Medications often induce neuropsychiatric side-effects. This article reviews psychiatric side-effects that are well known and describes those induced by recently developed medications. Therapeutic innovations have been prominent in the treatment of HIV infection, Parkinson's disease and epilepsy and therefore psychiatric side-effects caused by these agents are described in more detail.

By focusing therapeutic effort on the early stages of psychotic disorders, effective early intervention should improve short- and long-term outcomes. Strategies include pre-psychotic and prodromal interventions to prevent emergence of psychosis, detecting untreated cases in the community and facilitating recovery in established cases of psychosis. The evidence base for each of these strategies is currently limited, although several international trials are under way. The Department of Health in the UK has announced the intention of setting up 50 early intervention services nationally, several of which are already operational. In this article, we briefly discuss the differing ways in which early intervention is conceptualised, summarise the evidence supporting it in established cases of psychosis, suggest appropriate service models and describe two early intervention services in south-west London.