While the number of elderly people in the UK who drive is increasing, they are also more likely to suffer from serious or multiple illnesses. This increases the likelihood that they are taking prescribed medicines that may affect their ability to drive. In addition, age-related cognitive and physical limitations may also affect ability to drive. Changes in the metabolism of elderly people may also affect their ability to metabolise or excrete drugs. It is suggested that a model of severity of all combined effects is the most appropriate one to take when medical practitioners are giving advice to older patients. This should take into account any obvious evidence of normal age-related changes, such as changes in eyesight, speed and strength of movement, and slowing of reaction times. A summary of the illnesses commonly associated with age and of commonly prescribed medication of particular concern in relation to driving performance and risk is provided.
Abstract