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One in three elderly do not take medication properly after hospital discharge

Half the cases were preventable

Photo: Shutterstock

Photo: Shutterstock

More than one in three older patients suffer "medication-related harm" after being discharged from hospital, a new study suggests.

Researchers found at least 10% of these cases are preventable.

A new study, led by experts from Brighton and Sussex Medical School, found in some cases this even resulted in patients dying.

The authors said patients are "particularly vulnerable" to problems with their medications in the period after they have been sent home from hospital.

They set out to discover the level of harm and what it costs the NHS each year in the study, published in the British Journal of Clinical Pharmacology.

It examined data on 1,280 patients over the age of 65 who had been discharged from three hospitals in the south of England.

The patients, who had an average age of 82, were tracked for eight weeks after discharge.

The authors found 37% of older patients experience medication-related harm.

Among the patients who experienced some level of harm, 81% (336) were classed as "serious", with four patients dying.

Half of the cases were deemed to be potentially preventable by the experts, with 11% thought to be "definitely" avoidable.

Medicines found to be linked with the highest levels of harm were opiates, antibiotics, and benzodiazepines.

Harm came as a result of adverse drug reactions, non-adherence to taking drugs and medication errors.

Four out of every five patients who experienced harm then utilised NHS services, and 8% of patients were readmitted to hospital as a result.

"In addition to distress and potential dangers to patients, this harm costs the NHS in England an estimated £396 million annually," the authors added.

They estimate that of this £243 million is "potentially preventable".

Professor Chakravarthi Rajkumar, chairman of geriatrics and stroke medicine at Brighton and Sussex Medical School, said: "Medication-related harm can be life-threatening and similarly decisions to prescribe high-risk medicines should be taken after a comprehensive discussion with the patient."

"While the cost implications are significant, the magnitude extends beyond finances to adversely affect the quality of life for patients and families."

Graham Davies, professor of clinical pharmacy and therapeutics at the Institute of Pharmaceutical Science, King's College London, co-authored the paper.

He said: "In order to reduce the number of older people being harmed by their medicines, it's important that their medication regimens are closely monitored within the community."

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