A LEADING doctor has said the affects of driving after taking antihistamines 'isn't as well known as it should be'.

Dr David Wrigley, who is the Lancashire representative for the British Medical Association, said that while the side effects vary person to person, patients should be aware of the risks.

It comes after research from Confused.com revealed 34 per cent, of people claim to suffer from hay fever, while nearly two-thirds of those people, 64 per cent, admit to driving after taking medication.

Dr Wrigley said: "Certainly some of the antihistamines can cause sedation.

"The level of that sedation can vary from person to person.

"It's important that patients are aware of this and the other affects antihistamines can have.

"The information that come with the tablets explain this but still some people are not aware.

"It can only be a good thing that this issue is being highlighted in this way."

Common side effects of antihistamines include drowsiness, lethargy and blurry vision, as well as impaired concentration.

Amanda Stretton, motoring editor at Confused.com, said: “The level of awareness among drivers around how certain medications can affect a person’s driving ability is an area for concern.

“This is particularly alarming during hay fever season.

“More than a third, 34 per cent, admit to suffering from the ailment and, understandably, many resort to taking medication to help combat the symptoms.

“Yet those that choose to do so need to be highly aware of the potential risks of drowsiness and reduced concentration levels while driving.”

According to Confused.com’s survey, one in 15 motorists, seven per cent, with hay fever admit their driving has been impaired after taking medication, and four per cent of these people have had an accident as a result.

Mrs Stretton said: “Our advice is simple. Before taking any medication, people should always read the safety leaflet or ask a pharmacist before taking to the road.

“If unsure, they should err on the side of caution and avoid driving at all costs.”