Drivers who take medication to treat hayfever have been informed that they could be taking a risk when getting behind the wheel.
Almost half of motorists who suffer from hayfever have driven whilst taking medication and 18 per cent of these admit that their driving has been negatively affected as a result, according to a survey by Privilege Insurance.
One in ten respondents, the equivalent of 3.3 million motorists, said that impaired reaction times caused by hayfever symptoms or treatment have caused them to lose concentration at the wheel.
Eight out of ten drivers said they would change their driving behaviour if they thought their hayfever medication would impair their ability to control a car.
Over a third of people said they would wait until they had finished driving to take their medication and just under a quarter said they would not drive at all.
Dr James Lawrie, a GP, said: "Certain types of drugs or even herbal supplements can affect a person’s ability to drive safely and if they are combining several over-the-counter drugs for the treatment of the same ailment, they could be very dangerous on the road.
"It’s important drivers always read the label of any medication they plan to take â€“ either prescribed by a doctor or purchased at their local chemist â€“ and discuss possible side effects with their pharmacist."