http://www.theaustralian.com.au/national-affairs/health/anti-psychotic-drug-plague-running-unchecked/story-fn59nokw-1227465457211Anti-psychotic drug ‘plague running unchecked'Doctors are putting an average of 20,000 additional Australians per year on antipsychotics, many of which are prescribed “inappropriately” for common conditions, as experts warn of widespread costs to physical health from misuse and under-monitoring of the powerful drugs.
Prompting claims of a “plague” of unjustified prescribing, government figures released this week show that antipsychotics were dispensed to more than 433,000 Australians in 2013-14, a one-third increase on 2008-09.
The total number of antipsychotic prescriptions — most of which are written by GPs — rose by 44 per cent in that period, from 2.5 million to 3.6 million, far outstripping the rate of growth in antidepressants, as well as population growth.
Sydney University drug-use researcher Emily Karanges said the figures were “disturbing”.
“Antipsychotics are an important and lifesaving treatment for some conditions, such as psychotic illness, but they are also powerful drugs with a lot of potentially serious side-effects,” Dr Karanges said.
“This idea that they are completely harmless and we can frequently use them in more mild conditions like anxiety and sleep is very concerning.”
Concord Clinical School psychiatry professor Tim Lambert said there was a “plague” of inappropriate prescribing, rates of medical monitoring of their use were “atrocious” and significant adverse effects were “absolutely” occurring on a wide scale.
Antipsychotics are the “cornerstone”, evidence-based treatment for schizophrenia and are also effective in the treatment of other serious conditions, such as bipolar I disorder.
Experts say their concern about use in a widening array of conditions is that often benefits have not been substantiated or are outweighed by the drugs’ adverse effects.
Sydney University professor of geriatric pharmacology David Le Couteur said adverse consequences included obesity and diabetes, “and, in our older population, mortality, strokes, falls and fractures, and impaired quality of life”. Some antipsychotic medications can cause weight gain and metabolic disturbances, which can increase risk of future diabetes and cardiovascular disease.
Metabolic monitoring and management is recommended to help counteract side-effects, and research is showing exercise and diet programs can significantly reduce these effects.
The Weekend Australian has identified research audits showing many health services have been failing at high rates to complete monitoring protocols, often performing them for fewer than one-third of patients.
While agreeing there was “overuse and crude use” of antipsychotics, University of Melbourne professor of youth mental health Pat McGorry defended their use and importance, and cautioned that there was “underuse and seriously delayed use too”. “For patients who respond well to antipsychotics, the benefits definitely outweigh the problems,” he said.
“For most people with serious psychosis, the antipsychotics work and either abolish or reduce their hallucinations and delusions — you can see them melt away over a period of weeks.” The drugs’ advent had transformed the lives of those formerly left to endure “decades of suffering”.
Regulatory authorities have named the unjustified prescribing of antipsychotics to elderly people with dementia and to older children, adolescents and adults with sleep and anxiety problems as particularly concerning.
Stopping antipsychotics can cause negative and dangerous outcomes. Experts advise those with concerns to consult a doctor.
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