The police have a right to stop and ask you to do a 'field impairment assessment' which is a series of tests. If they think you're unfit to drive, they'll arrest you and take a blood and urine sample at a police station. Just one smoke of cannabis puts you over the limit. Other drugs include heroin, ecstasy, MDMA, LSD, cocaine, methylamphetamine and ketamine.
If you're convicted of drug driving you could receive:
The drug driving law now includes the following prescription drugs. Always read the label / instructions and check with your GP/ Doctor for advice.
The Gov.co.uk website suggests you keep some evidence of your prescription drug in the car or on you, should you be stopped by the Police.
is prescribed for conditions like ADHD and narcolepsy
is prescribed to treat seizures or panic disorders
is used for anxiety disorders, alcohol withdrawal symptoms or muscle spasms
(also known as Rohypnol) is a sedative originally used in hospitals for deep sedation in the 1970s
is used to treat convulsions or seizures caused by epilepsy
is used in the treatment of heroin addiction and for pain relief
or opiates treat moderate to severe pain
is used to relieve anxiety, including anxiety caused by alcohol withdrawal
affects chemicals in the brain that may become unbalanced and cause insomnia problems
These are the drugs on the list so far but others may well be added. If in doubt don't drive and speak to your GP for more guidance.