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Well-known member
Apr 23, 2010
goodness knows!
Anxiety UK tells us:

"Drug driving law is changing to make it easier for the police to detect and prosecute drug drivers.

A new offence is expected to come into force in March 2015 of driving with certain controlled drugs, like diazepam, above specified limits.

The government will be taking a “zero tolerance” approach to 8 illegal drugs, and will be able to take up to three saliva tests for drugs at the roadside to identify any drugs used.

However, it’s the potential impact on those taking prescription drugs included in the new legislation, such as Diazepam, Clonazepam and Lorazepam that could present a problem for those suffering from anxiety or related disorders.

How will the new laws affect you if you’re taking prescription medicines?

According to the Government website, you should continue to take your medicine(s) as advised by your doctor or healthcare professional, or according to the patient information leaflet that comes with the medicine.

The new law will give the police powers to test and arrest drivers who are suspected of driving having taken certain controlled drugs in excess of specified levels.

Unlike the existing ‘impairment’ offence, the new law provides a medical defence if you’re taking your medicine in accordance with instructions – either from a healthcare professional or printed in the accompanying leaflet – provided, of course, you’re not impaired.

If you’re driving and you’re on prescription medicine, it may therefore be helpful for you to keep some evidence of this with you in case you’re stopped by the police."


I've taken diazepam (very low dose - 5 mg) and I think I would have been OK to drive. It just made me feel floppy and more relaxed. Don't know about the effect in higher doses?

If any drug makes you feel drowsy or affects your ability to drive / make decisions / stay awake etc., surely it's better not to drive rather than produce evidence that you are on a prescription drug?

It's an important issue though. These drugs are sedating. We should be more aware of their effects on driving. It's not just our lives we risk afterall.


Well-known member
Founding Member
Jan 7, 2008
i wonder how many people who drive on prescription drugs have taken the driving test whilst on them, banning people from driving is just going to add to the stigma of taking prescription drugs