More than 250 people have contacted the BBC with accounts of how dopamine agonists prescribed for Parkinson’s disease and restless legs syndrome triggered devastating addictions. Those affected include police officers, nurses, doctors and even a risk director at one of the banks. The complaints concern compulsive gambling, sexual compulsions and uncontrolled shopping.
One of those who spoke to reporters, a patient named Emma, lost tens of thousands of pounds in a year and for a long time did not suspect that the root of the problem lay in her prescription medication.
How personal stories became a public issue
Almost a year after the first publications, patients continue to claim that doctors are not warning them either about the risks or about how common the side effects really are. The House of Commons Health and Social Care Committee has asked the UK regulator to review the warnings, and the government called the new data “a cause for serious concern”.
Amid mounting public pressure, it is becoming increasingly clear that the problem has gone far beyond individual medical cases and has turned into an issue of systemic safety. It echoes debates over violent video games for children, which worry teachers and parents. As a result, it was public pressure that made it possible https://carwinpharma.com/who-makes-cialis/.
Emma and years of debt ahead
Restless legs syndrome began for Emma during pregnancy, and then the symptoms worsened. She was prescribed ropinirole, a drug made by the British pharmaceutical company GSK. Soon after starting treatment, compulsive gambling and impulsive spending appeared. She ended up with at least £30,000 in losses and a debt burden she says she can’t yet see an end to.
She says that during clinic visits she filled in an online questionnaire, indicating both the medication and the addiction that had developed, but the doctor still did not connect one with the other. Only after Emma’s husband found BBC material did she manage to get her treatment changed. “It ruined my life,” she admits.
Technology has made addiction problems worse
This problem looks even more serious because it has become easier to make impulsive purchases thanks to online retailers. The same applies to gambling — online casinos have made access far easier. On top of that, players can choose the simplest and most dynamic forms of entertainment, such as crash games. According to information we find here, on a site about the Jet X crash game, a round lasts up to 10 seconds at most, and typically 3–5 seconds. After that, you can place another bet. For a person with impulsive behaviour, this is not just a problem — in just a minute they can lose quite a lot of money and still not stop.
Since a person does not connect their problem with taking the drugs, they simply continue placing bets and buying unnecessary goods without being able to stop. After all, all of this is done right on the phone, so entertainment is at your fingertips. Resisting the urge to play becomes increasingly difficult.
How dopamine agonists can trigger impulsive behaviour
The mechanism seems deceptively simple. The drugs increase dopamine activity, a neurotransmitter responsible not only for movement control but also for the brain’s reward and motivation system. When this system is overstimulated, a person may lose the ability to resist impulses.
The consequences described by patients across the UK range from huge debts and family breakdowns to criminal cases and suicides.
What kinds of compulsions patients experience
Among the side effects recorded in the appeals:
• compulsive gambling and compulsive shopping
• hypersexuality and pornography addiction
• compulsive overeating
• risky investments
• other sudden behaviour changes that were previously completely uncharacteristic for patients
A recurring theme in the letters is that loved ones do not connect what is happening with treatment, because such tendencies simply did not exist in the person before.
A trap with no way to call for help
Michael’s story (not his real name) shows another side of the problem. After being prescribed a drug for restless legs syndrome, he developed obsessive sexual impulses. Previously faithful to his wife, he began turning to sex workers. “I know I need help, but I can’t tell those who can help about it. I have nowhere to turn,” he says, explaining that his spouse attends his medical appointments.
If you notice worrying changes in behaviour while on treatment, the NHS recommends discussing adjustments to treatment with a doctor. Advice is also available through the organisations Parkinson’s UK and RLS-UK.
How common it is — and what the leaflets say
Impulsive behaviour affects around one in six patients with Parkinson’s disease taking these drugs, which is classified as “very common”. However, patient information leaflets do not include such an assessment of prevalence, and the wording remains vague and does not list specific manifestations such as pornography addiction.
Despite the drugs being downgraded as a first-line treatment for restless legs syndrome, prescribing levels by GPs (general practitioners) in England, according to the investigation, have not fallen.
What and when GSK learned about sexual side effects
The timeline of warning signs forms a long chain. In 2000, the company became aware of a case of paedophilia in a patient on ropinirole. In 2003, GSK prepared an internal report with wording about “deviant” sexual behaviour. Warnings in the patient information leaflets appeared only in 2007. At the same time, the company expanded the drug’s indications to restless legs syndrome, and in 2005 was involved in a study of its effectiveness for sexual dysfunction.
GSK says the drug underwent extensive trials, was approved by regulators worldwide, and that the side effects are clearly stated. The company also emphasises that it did not sponsor or design the 2005 study. The MHRA explains the delay by the need to assess the entire body of data and the impossibility of listing an exhaustive set of individual reactions. In official wording, general terms still appear: “increased libido”, “harmful behaviour”, “altered sexual interest”.
Court cases outside the UK and an expected decision in France
Many UK patients say they see no route to justice at home. However, abroad, precedents are mounting. In Belgium, a court acquitted a man who committed sexual violence against his four-year-old granddaughter, accepting the argument about the influence of ropinirole. Next month, a major decision is expected from a French court in a lawsuit against GSK: the claimant alleges damages of about €90,000 due to compulsive gambling and spending and demands that the company acknowledge responsibility.
Those with additional information on the topic can contact BBC journalist Noel Titheradge via Signal (+44 7809 334720), email noel.titheradge@bbc.co.uk, or the SecureDrop platform.