Paracetamol is a staple in many medicine cabinets, but is it as safe as we think? Let’s dive into the facts.

Topics covered
Paracetamol, known as acetaminophen in the United States, is a widely used pain reliever. It is commonly taken for headaches, fevers, and general discomfort. However, recent discussions in the medical community suggest that its reputation as a harmless remedy may be misleading.
This article explores the potential risks associated with paracetamol use, prompting a reevaluation of its safety and efficacy.
What is paracetamol and how is it used?
Paracetamol is the preferred choice for pain relief among many individuals. In the UK, the average person consumes approximately 70 tablets annually, equating to nearly six doses a month.
While often regarded as a quick fix, concerns have emerged regarding the frequency of its use. Recent data indicates that the National Health Service (NHS) in England issued over 15 million prescriptions for paracetamol, costing around £80.6 million. This raises the question: are we relying on it too heavily?
Several studies have begun to associate regular paracetamol use with severe health complications, including liver failure, hypertension, and gastrointestinal issues.
Dr. Andrew Moore, a prominent pain researcher, argues that the commonly held belief in paracetamol’s safety may be misguided. He warns that risks extend beyond overdose cases; even routine doses can pose health threats.
How does paracetamol affect the liver?
Paracetamol is the leading cause of acute liver failure in adults. Consuming approximately 7.5 grams—nearly double the recommended dose—can result in toxicity. This occurs as the body metabolizes paracetamol, producing a by-product that is toxic in large quantities.
Under normal circumstances, the body neutralizes this toxin with a protective compound called glutathione. However, excessive intake can overwhelm the liver’s capacity to manage the toxin, resulting in damage. The risk escalates for individuals who consume alcohol or have pre-existing liver conditions.
Many users may underestimate their paracetamol intake, particularly when combining it with other medications containing the same ingredient. This can lead to unintentional overdosing. It is crucial for individuals to be conscious of their total consumption.
Is paracetamol effective for chronic pain?
Regarding effectiveness, emerging evidence suggests that paracetamol may not be as effective for chronic pain conditions—such as back pain or osteoarthritis—as previously believed. The UK’s medicines regulatory authority has updated guidelines indicating it should not be used for chronic pain due to insufficient evidence of its efficacy.
Research indicates that paracetamol may provide relief for postoperative pain in only about one in four patients. For those it helps, it is beneficial; however, many may find it ineffective. What alternatives have you found effective for pain management?
Unpacking the health risks
Further complicating the narrative, paracetamol may not be as safe as often claimed, particularly for women. Recent studies reveal that even this ‘safer’ alternative to non-steroidal anti-inflammatory drugs (NSAIDs) can elevate blood pressure. Participants in a study taking standard doses of paracetamol experienced significant increases in blood pressure.
For individuals over the age of 65, regular paracetamol use poses additional risks, including gastrointestinal bleeding and chronic kidney disease. A significant study involving over 500,000 older adults found that even infrequent prescriptions could lead to serious health complications.
Paracetamol is the preferred choice for pain relief among many individuals. In the UK, the average person consumes approximately 70 tablets annually, equating to nearly six doses a month. While often regarded as a quick fix, concerns have emerged regarding the frequency of its use. Recent data indicates that the National Health Service (NHS) in England issued over 15 million prescriptions for paracetamol, costing around £80.6 million. This raises the question: are we relying on it too heavily?0




