A 46-year-old Nelson woman 'doctored' her prescription because she felt she needed more sleeping tablets than the doctor ordered.

Blackburn magistrates heard that Teresa Stokes was prescribed two tablets but inserted a '1' after the '2' before presenting the order at Boots.

Stokes, of Holloway Road, pleaded guilty to forging a prescription. She was given a conditional discharge for six months.

Roger Pickles, defending, said his client hears voices and had seen her doctor who prescribed just two tablets.

"She believed she knew her condition better than her doctior and felt that two tablets was not enough," said Mr Pickles.