Helpline: 0808 800 0303

Parkinson's drugs and impulsive and compulsive behaviour

Some people with Parkinson's who take dopamine agonists have problems controlling compulsive or impulsive behaviour. It can also affect people taking other Parkinson's drugs, in particular levodopa.

Our helpline deals with many enquiries related to side effects and adverse responses to drugs. Call us on 0808 800 0303 for free and confidential support.

Tim Moore, Helpline Manager

Impulsive behaviour is when a person can't resist the temptation to carry out certain activities that could lead them to harm themselves or others. In many cases, this behaviour is out of character.

Compulsive behaviour is when a person has an overwhelming drive or urge to act in a certain way, often repetitively, to reduce the worry or tension that they get from their drive or urge.

Both can have a devastating impact on the person with Parkinson's and those around them.

Read about our campaign to raise awareness of impulsive and compulsive behaviour.

We have a dedicated impulsive and compulsive behaviour discussion forum for people to share their experiences and get support.

Types of impulsive and compulsive behaviour

This behaviour can be expressed in a number of different ways, including:

  • addictive gambling
  • impulsive shopping – a preoccupation with buying or shopping
  • binge eating
  • hypersexuality – when people find themselves preoccupied with sexual feelings and thoughts

Punding, which is compulsive hobbyism, or repetitive collecting and sorting of objects, may be experienced as:

  • a deep fascination with taking technical equipment apart without always knowing how to put it back together again
  • an obsession with sorting and organising objects – usually simple items like buttons
  • hoarding things
  • pointless driving or walking
  • talking in long monologues without any real content

Addiction to Parkinson's medication, called dopamine dysregulation syndrome, is when a person takes more of a drug than is needed to control their Parkinson's symptoms.

For more information, read our free publications:

Are certain people more likely to experience impulsive or compulsive behaviour?

You are more likely to experience impulsive or compulsive behaviour if you're diagnosed with Parkinson's under the age of 50.

It may be more likely to affect you if you have a family history of impulsive or compulsive behaviour, or if you've carried out certain behaviours in the past, such as addictive gambling, shopping or binge eating.

If you have a history of 'risk-taking', such as gambling, drug abuse or alcoholism, you may be more likely to develop impulsive or compulsive behaviour connected with Parkinson's drugs, such as dopamine addiction (dopamine dysregulation syndrome).

Treatment for impulsive and compulsive behaviour

Impulsive and compulsive behaviour is not normal.

If you think this is happening to you or the person you are caring for, tell your GP, specialist or Parkinson's nurse right away, so they can help. You can also call our free and confidential helpline 0808 800 0303.

You can record discussions with health professionals about impulsive and compulsive behaviour using our Impulsive and compulsive behaviour in Parkinson's information tool.

Someone experiencing impulsive or compulsive behaviour may not realise they have a problem. So it's important that carers and family members note any unusual behaviour and tell the appropriate healthcare professional as soon as possible.

Impulsive and compulsive behaviour can be controlled. Treatment may involve reducing the daily dose of Parkinson's medication, having psychotherapy and looking into other types of Parkinson's medication.

We do not advise anyone to stop taking or to change their Parkinson's drugs without seeking the advice of their health professional.

You'll find more detail in our Impulsive and compulsive behaviour in Parkinson's information sheet.

Real life storiesParkinson's drugs

3 people with Parkinson’s share their experiences of how impulsive and compulsive behaviour affected them.

They hope that their stories will help others identify any potential issues, and take action immediately:

You'll also find details of how some Parkinson's drugs can affect sex and relationships in our Intimate relationships and Parkinson's booklet.

Impulsive and compulsive behaviour research

We are currently funding 2 research projects on impulsive and compulsive behaviour, focusing on risk factors and how the symptoms should be managed.

Legal action against drug manufacturers

If you’re thinking about taking legal action against a drug manufacturer, there may be a limited time frame in which to do so.

Anyone considering this path would need to seek specialist legal advice as soon as possible.

The Solicitors Regulation Authority should be able to advise you further. They can be contacted on 0870 606 2555.

More drug treatments for Parkinson's

Return to the drug treatments for Parkinson's main page

Direct and confidential help and support

Share your experiences with others on our impulsive and compulsive behaviour discussion forum.