GPs Warn of Rising Codeine Addiction as Over-the-Counter Drug Misuse Grows in Ireland
Leading GPs across Ireland are raising the alarm about a surge in codeine addiction presenting at treatment services, warning that many patients do not realise they have become dependent on the widely available painkiller. Doctors are calling for urgent regulatory reform, including a move to prescription-only status, as the scale of the hidden dependency crisis becomes increasingly apparent.
Background
Codeine is classified as a Schedule 5 controlled drug in Ireland and can be purchased in pharmacies without a prescription — a more liberal regulatory approach than in countries such as Australia, France, and Austria, all of which have moved to a prescription-only model to curb misuse. In Ireland, codeine-containing products remain among the top-selling over-the-counter items in pharmacies, widely used for everyday pain relief including headaches, back pain, and dental discomfort.
Research published in the Irish Medical Journal has highlighted that between 2006 and 2016, codeine prescribing for medical cardholders in Ireland increased by 208%. Data from the Health Research Board (HRB) indicates that approximately 19,460 problematic opioid users were estimated in Ireland in 2022, and earlier figures showed that 1.9% of individuals in drug treatment between 2008 and 2012 reported codeine as their primary or secondary problem drug — suggesting a significant and persistent issue that has long been underacknowledged.
Dependence on codeine can develop within days of regular use, leading to increased tolerance and severe withdrawal symptoms including nausea, insomnia, sweating, and anxiety. A major compounding concern is the damage caused by other active ingredients in popular OTC codeine products, such as ibuprofen and paracetamol. Long-term, high-dose use of these combination products can lead to serious gastrointestinal issues, kidney damage, and liver failure — consequences that many users are entirely unaware of when they first reach for the packet.
Key Developments
A leading GP told reporters this week that the number of patients presenting with codeine-related issues at treatment services has risen sharply, describing it as a "timely and urgent" public health concern. "These are people who started taking it for a headache or back pain and found they couldn't stop," the doctor said. The issue is compounded by the ease with which patients can obtain the drug across multiple pharmacies — a practice known as "codeine shopping" — and the stigma that prevents many from seeking help.
Many codeine-dependent individuals do not identify with traditional addiction services, viewing their dependency as distinct from illicit drug use. This disconnect means that a significant proportion of those affected never present to specialist services, instead managing their dependency in isolation until physical or psychological consequences force them to seek help. The Health Products Regulatory Authority (HPRA) has urged healthcare professionals to report suspected cases of harm, and an independent review of Ireland's codeine regulations is currently underway. As the Health Research Board has documented, opioid misuse in Ireland extends well beyond street drugs and into the medicine cabinets of ordinary households.
Doctors are calling for codeine's legal status to be changed to prescription-only, as has been done in Australia and Italy, and for a centralised monitoring system to track purchases across pharmacies. The Irish Pharmacy Union has also called for greater community pharmacist involvement in identifying and supporting those at risk, while addiction specialists say the current "one size fits all" approach to opioid treatment does not adequately address the specific needs of codeine-dependent patients.
Why It Matters
The codeine addiction crisis in Ireland represents a textbook example of a hidden public health emergency — one that unfolds quietly in homes and GP surgeries rather than on the streets, and which therefore receives far less attention than it deserves. Unlike heroin or other illicit opioids, codeine dependency carries no obvious social stigma in its early stages; users are often middle-aged, employed, and entirely functional, which makes identification and intervention all the more difficult.
The consequences, however, are no less serious. Untreated codeine dependency can escalate to more dangerous opioid use, and the physical toll of long-term combination product misuse — particularly on the kidneys and liver — can be irreversible. The lack of specific detoxification guidelines for codeine, combined with low awareness of the drug's addictive potential among both the public and healthcare professionals, means that many people are falling through the cracks of a system not designed to catch them. As the Irish Times has reported, the scale of the problem is only now beginning to be fully understood.
Local Impact
Across Ireland, GPs and community pharmacists are on the front line of a crisis that touches every county and every demographic. In rural areas, where access to specialist addiction services is limited, the burden falls disproportionately on family doctors who may lack the training or resources to provide adequate support. In urban centres, the phenomenon of codeine shopping — visiting multiple pharmacies to circumvent purchase limits — is well documented and difficult to police without a centralised tracking system. The Irish Pharmacy Union's call for greater pharmacist involvement in identifying at-risk patients is a practical step, but advocates stress that without regulatory reform, the structural conditions enabling widespread misuse will remain unchanged. For patients and families already affected, the message from health professionals is clear: codeine dependency is a medical condition, not a moral failing, and help is available.
What's Next
The outcome of the HPRA's independent review of codeine's regulatory status is eagerly awaited by health professionals and patient advocates alike. A move to prescription-only status would represent a significant shift in Irish drug policy and would bring the country into line with several European neighbours. In the meantime, the Department of Health is actively reviewing the situation, and GPs are urging patients who are concerned about their codeine use to speak to their family doctor without delay. Early intervention, specialists stress, is the most effective way to prevent a manageable dependency from becoming a life-altering addiction.
