Common medicines for elderly linked to deathCommonly used drugs - for conditions such as heart disease, depression and allergies - have been linked to a greater risk of death and declining brain function by UK researchers.They said half of people over 65 were prescribed these drugs.Drugs examinedCategory one, mild * Codeine (painkiller) * Warfarin (blood thinner) * Timolol maleate (eye drops)Categ