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Dementia 'linked' to common over-the-counter drugs in BBC News Health, Michelle Roberts, 27 January 2015

Excerpts
:
"A study has linked commonly used medicines, including over-the-counter treatments for conditions such as insomnia and hay-fever, to dementia.

All of the types of medication in question are drugs that have an "anticholinergic" effect.

Experts say people should not panic or stop taking their medicines.

In the US study in the journal JAMA Internal Medicine, higher doses and prolonged use were linked to higher dementia risk in elderly people.

The researchers only looked at older people and found the increased risk appeared when people took drugs every day for three years or more"

"Drugs in the study
The US study does not name specific brands, but does outline the types of treatments investigated, which include:

Tricyclic antidepressants for treating depression
Antihistamines used to treat hay-fever and allergies
Antimuscarinics for treating urinary incontinence
Most of the drugs were given on prescription, rather than bought at the pharmacy over-the-counter."

Article at:
http://www.bbc.com/news/health-30988643