Centre for Road Safety

Prescription drugs can affect your ability to drive.

Manage your medications

Driving a vehicle or riding a motorcycle safely requires good co-ordination and mental alertness. Many prescription and non-prescription medicines affect your ability to drive or ride safely.

Combining different medications may have an even greater effect on your ability to drive safely. Negative effects of prescription and over-the-counter medications include drowsiness, blurred vision, poor concentration, slower reaction times and aggressive behaviour.

Drivers who take medication should:

  • Look for and follow instructions on warning labels
  • Ask your pharmacist or doctor to explain anything you do not understand
  • Read the consumer medicines information leaflet available for most prescription medications
  • Arrange another form of transport – call a cab, ask a friend or relative for help or use public transport

For your own safety

  • Don’t drive unless you are fit to do so
  • Don’t stop taking your prescribed medication if your driving is affected – cease driving and talk to your doctor about alternative medication
  • Don’t take more or less of the prescribed dose unless recommended by your doctor
  • Don’t take another person’s medicine
  • Don't consume alcohol with any medication
  • Don’t drive if you have missed a dose of medicine that controls symptoms which affect your driving