Helpline: 0808 800 0303

Parkinson's drugs and compulsive behaviour

Research suggests that around 14% of people taking dopamine agonists, a group of drugs used to treat Parkinson's, will experience some form of compulsive behaviour.

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

Some studies have suggested that other types of Parkinson's medication can also produce similar side effects.

Compulsive behaviour is when a person has an inability to resist a temptation or an impulse to carry out certain activities.

These activities may eventually cause harm to the person or others and the behaviour is typically out of character.

Types of compulsive behaviour

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

  • pathological (addictive) gambling
  • compulsive shopping - a preoccupation with buying or shopping
  • compulsive (binge) eating
  • hypersexuality - when people find themselves preoccupied with sexual feelings and thoughts

Punding or 'compulsive hobbyism' is characterised by:

  • an intense fascination with repetitive manipulations of technical equipment
  • the continual sorting of common objects
  • hoarding
  • pointless driving or walking
  • talking in extended monologues without any content

Addiction to Parkinson's medication is when a person takes more of a drug than is required to control their Parkinson's symptoms

For more information, read our free publications:

Are certain people more susceptible to compulsive behaviour?

Compulsive behaviour is more likely to occur in people diagnosed with Parkinson's under the age of 50

It's possible that compulsive behaviour may affect those with a potential genetic susceptibility and/or an underlying behavioural vulnerability.

People with a history of 'risk-taking', for example gambling, drug abuse or alcoholism, are believed to be more likely to develop compulsive behaviour associated with dopaminergic drugs. In these people they are usually, but not always, associated with dopamine addiction (dopamine dysregulation syndrome).

Treatment for compulsive behaviour

Compulsive behaviour is abnormal. Anyone experiencing it should seek help from a Parkinson's nurse, consultant or GP urgently. You can also call our free and confidential helpline 0808 800 0303

As the person themselves may not realise that there is a problem, it is key that carers and family members note any abnormal behaviour and discuss it with the appropriate professional at the earliest possible stage.

Compulsive behaviour can be controlled. Treatment can involve reducing the daily dose of Parkinson's medication, undertaking psychotherapy and also considering whether to try other types of medication.

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

You'll find more detail in our Compulsive behaviour and Parkinson's information sheet

Real life stories

Parkinson's drugsSeveral people have decided to share their experiences of how the compulsive behaviour they developed after taking Parkinson's drugs 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

Legal action against drug manufacturers

We understand that for anyone thinking of taking legal action 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 Law Society should be able to advise individuals further. They can be contacted on 020 7242 1222.

More drug treatments of Parkinson's

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