Today's Australian post from theconversation.com (see link below) provides some of the strongest evidence so far to back up the belief that far from being an effective nerve pain drug, pregabalin (Lyrica) is a dangerous and addictive drug that should be taken with the greatest of care and continued medical monitoring. Now regular readers of this blog will know that we have published countless articles about the dangers of Lyrica (pregabalin) before, yet it remains one of the most popular drugs among doctors who prescribe it for neuropathic pain. Despite warnings from the FDA and many court cases resulting from the side effects, Lyrica stubbornly remains the prescription drug of choice for many doctors. This is undoubtedly due to an extremely efficient marketing campaign on behalf of Pfizer (the makers of the drug). Aggressive marketing can produce results apparently. However, after reading today's article and maybe others here on the blog, you may wish to ask your doctor some serious questions if you're prescribed pregabalin. It was never meant for nerve disease anyway - it was designed originally as an anti-epilepsy drug but because it was assumed that it would work on the same nerve cells in the brain that affect neuropathy patients, it became one of the top 3 drugs prescribed for nerve damage and nerve pain. Please don't just accept a prescription because you assume your doctor knows what he or she is doing - ask questions (especially about withdrawal symptoms) before making a decision whether to take the drug or not.
Ambulance call-outs for pregabalin have spiked – here’s why
November 25, 2018
At higher-than-prescribed doses, pregabalin causes sedation and euphoria. Bruno van der Kraan
Authors
Shalini Arunogiri
Addiction Psychiatrist, Lecturer, Monash University
Dan Lubman
Director, Turning Point Alcohol and Drug Centre & Professor of Addiction Studies, Monash University
Rose Crossin
Research Officer in Addiction Studies , Monash University
Disclosure statement
We would like to acknowledge the contribution of our co-authors Karen Smith, Debbie Scott and Paul Dietze. Thanks to Ambulance Victoria for providing the data and the Population Health team at Turning Point who code it to create this unique data set. Shalini Arunogiri has previously received a scholarship from the National Health and Medical Research Council (NHMRC), and the Society for Mental Health Research (SMHR).
Dan Lubman has received funding from the National Health and Medical Research Council, the Australian Research Council, beyondblue, Movember, Victorian Department of Health and Human Services, Commonwealth Department of Health, Victorian Gambling Research Foundation and the Victorian Health Promotion Foundation. He has also received speaking honoraria from AstraZeneca, Indivior, Janssen, Servier, Shire and Lundbeck and has provided consultancy advice to Lundbeck and Indivior.
Rose Crossin has previously received an RTP scholarship from the Australian Department of Education and Training.
Partners
Monash University provides funding as a founding partner of The Conversation AU.
Victoria State Government provides funding as a strategic partner of The Conversation AU.
The Conversation UK receives funding from Hefce, Hefcw, SAGE, SFC, RCUK, The Nuffield Foundation, The Ogden Trust, The Royal Society, The Wellcome Trust, Esmée Fairbairn Foundation and The Alliance for Useful Evidence, as well as sixty five university members.
Pregabalin (sold under the brand name Lyrica) is prescribed as an anti-epileptic and a painkiller for nerve pain. Australian prescriptions of pregabalin have risen significantly in the past five years. It’s now in the top ten most expensive medications for the Pharmaceutical Benefits Scheme (PBS).
We’ve also seen a rise in “off-label” prescription of pregabalin. This means it’s being prescribed for conditions for which there is limited evidence of effectiveness. Pregabalin is often prescribed for chronic or persisting pain, for example, even when there is no clear nerve-related cause.
Read more: Explainer: why are off-label medicines prescribed?
Pregabalin is thought to have effects in the brain similar to those of benzodiazepines such as diazepam (Valium) by indirectly increasing levels of the neurotransmitter GABA.
Until recently, researchers and doctors did not think pregabalin was addictive. But now studies suggest pregabalin may also have an indirect effect on the brain’s reward chemical, dopamine.
Our research, published today in the Medical Journal of Australia, shows ambulance call-outs associated with the misuse of pregabalin have increased tenfold in Victoria since 2012. This mirrors an increase in prescription rates.
Growing evidence of misuse
In 2010, the first study was published that reported on a trend of pregabalin misuse.
Since then, several international research articles have documented misuse, including using higher doses than are recommended. At higher-than-prescribed doses, pregabalin causes sedation and euphoria.
People who use opioids – painkillers like oxycodone, or illicit opioids such as heroin – have a particularly high risk of misusing pregabalin. So do those with a history of substance use problems.
People who use illicit drugs report often using pregabalin in combination with other drugs. Pregabalin has been implicated in drug-related deaths in individuals who weren’t prescribed the medication, and often in combination with other sedative medications or illicit drugs.
High rates of pregabalin use are also reported in secure environments, such as prisons, in both Australia and the United Kingdom.
Two-thirds of call-outs for pregabalin were for people who also used other sedatives. Paul Miller/AAP
What did we find?
We analysed a unique database (the Ambo Project) that documents all ambulance attendances related to alcohol and drug use and mental health in Victoria.
We found pregabalin-related ambulance attendances increased tenfold between 2012 and 2017, from 0.28 cases per 100,000 population to 3.32 cases per 100,000. Pregabalin misuse contributed significantly to 1,201 call-outs from 2012 to 2017.
Pregabalin has a sedative effect, which can be compounded when used with other drugs that cause sedation, including alcohol, or other prescribed medications such as benzodiazepines and sleeping tablets (such as Valium).
Read more: Despite escalating prescriptions, nerve pain drug offers no relief for sciatica
More than two-thirds of pregabalin-related ambulance call-outs were for people who also used other sedatives. Almost 90% required transport to hospital. In some situations, such sedation could be life-threatening.
Our findings of rising harms, especially from co-use with other drugs, echo findings from a New South Wales research group that used data from poisons hotline calls, hospital admissions, and coronial reports from drug-related deaths.
How to reduce the harms
Doctors need to ensure patients are provided with the opportunity for careful and considered informed consent.
Pregabalin is a high-risk medication, especially when used with other sedatives. Although some doctors are aware of the side effects and harms associated with pregabalin, many are not.
The Royal College of General Practitioners recently warned doctors to carefully assess the risks when prescribing these medications, particularly for people who are also prescribed opioids or benzodiazepines. NPS MedicineWise also recently highlighted the need for prescribers to exercise caution.
Read more: Health Check: why can you feel groggy days after an operation?
Better regulation is also needed.
Some Australian states including Victoria plan to implement real-time prescription monitoring (RTPM). This would allow authorities to monitor and regulate access to high-risk medications such as opioid painkillers (oxycodone or similar) or benzodiazepines.
But pregabalin is not on the list of medications that will be captured by real-time prescription monitoring. To reduce the high risk of harm from pregabalin misuse, we should consider adding this drug to the list.
In the United Kingdom, pregabalin will become a “scheduled” or controlled medication from April 2019. This means doctors will need to apply for a permit before prescribing it.
If this is found to be successful, Australia should consider following suit.
https://theconversation.com/ambulance-call-outs-for-pregabalin-have-spiked-heres-why-106163
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