Key Takeaways
- Over-the-counter (OTC) medications such as acetaminophen, ibuprofen, naproxen, and aspirin have been linked to cases of Stevens-Johnson syndrome (SJS).
- Early SJS symptoms after taking a drug can resemble common illnesses before more serious skin symptoms develop.
- Consumers may not realize that many cold and flu remedies contain the same active ingredients found in common pain relievers and fever reducers, which can make it more difficult to identify a potential SJS trigger.
- Early diagnosis and treatment can help reduce the risk of serious complications associated with SJS.
Millions of Americans take over-the-counter (OTC) medications every day to treat headaches, fever, cold symptoms, and minor aches and pains. Most people assume serious drug reactions are primarily associated with prescription medications. However, medical researchers and federal regulators have documented rare cases in which commonly used nonprescription drugs have been associated with Stevens-Johnson syndrome (SJS) or its more severe form, toxic epidermal necrolysis (TEN).
Although SJS and TEN are uncommon, both conditions can lead to extensive skin loss, permanent vision problems, serious infections, long-term disability, and death. Several medications linked to these reactions are staples in many American households, making it important for consumers to understand the potential risks and recognize early warning signs of SJS.
Common OTC Medications Linked to SJS
Not all over-the-counter medications carry the same level of evidence or concern regarding SJS or TEN. However, acetaminophen and several common pain relievers have been the subject of FDA safety communications, medical studies, and adverse event reporting systems.
Acetaminophen
Acetaminophen, sold under brand names such as Tylenol and included in numerous cold and flu products, received national attention in 2013 when the FDA issued a safety communication warning that it could, in rare cases, cause serious skin reactions, including Stevens-Johnson syndrome and toxic epidermal necrolysis.
Because acetaminophen is one of the most widely used medications in the U.S., many consumers are surprised to learn that it has been linked to severe skin reactions.
Ibuprofen and Other NSAIDs
Acetaminophen is not the only OTC product associated with SJS. Nonsteroidal anti-inflammatory drugs (NSAIDs), another widely used class of pain relievers, have also been linked to cases of the condition.
Common over-the-counter NSAIDs include:
- Ibuprofen (Advil, Motrin)
- Naproxen (Aleve)
- Aspirin
A 2022 analysis of FDA adverse event reporting identified 1,868 reports of Stevens-Johnson syndrome associated with NSAIDs between 2004 and 2021. Researchers found that fatal outcomes varied among different medications, with reported fatality rates of approximately 6.9% for ibuprofen-associated SJS, 19.7% for aspirin-associated SJS, and 25% for diclofenac-associated SJS.
While these reports don’t establish that a medication directly caused every case, they highlight the ongoing monitoring efforts used to identify potential safety concerns involving commonly used drugs.
Many OTC Products Contain the Same Active Ingredients
One challenge in identifying a potential medication-related reaction is that many over-the-counter drugs contain the same active ingredients found in popular pain relievers and fever reducers. Consumers may recognize a brand name but may not realize which medications are actually contained in the product.
For example, acetaminophen is included in numerous cold, flu, sinus, and multi-symptom remedies sold under various brand names. A person treating a fever, cough, congestion, or body aches may take acetaminophen without realizing it is one of the active ingredients listed on the label.
Similarly, ibuprofen is found in a range of nonprescription products used to relieve pain, reduce inflammation, and lower fever. Since these medications are widely available and commonly used, consumers often view them as routine household remedies rather than drugs that can cause serious adverse reactions in rare circumstances.
This can sometimes make it more difficult for patients and healthcare providers to identify a potential medication trigger when symptoms first appear. Medical providers frequently review a patient's recent medication history, including both prescription and OTC products, when evaluating a possible case of Stevens-Johnson syndrome.
How Soon Can Stevens-Johnson Syndrome Develop After Taking an OTC Medication?
One common misconception is that Stevens-Johnson syndrome only develops after months of using a medicine. In reality, SJS symptoms can emerge quickly after a new medication is started.
Research has shown that the highest-risk period typically occurs within the first 1 to 8 weeks after starting treatment, though symptoms may sometimes develop within just a few days. The timeline varies depending on the medication involved and whether a patient has previously been exposed to the drug. It’s important to pay attention to any unusual reactions after starting any new type of drug.
One reason SJS can be difficult to diagnose is that its earliest symptoms often resemble common illnesses. Patients may initially experience:
- Fever
- Fatigue
- Sore throat
- Cough
- Body aches
- Burning or irritated eyes
These flu-like symptoms may appear days before the more recognizable signs of SJS develop. As the condition progresses, patients may experience a painful rash, blistering, skin peeling, and sores affecting the mouth, eyes, or genital areas.
Why Early Diagnosis Matters in SJS Cases
Patients should seek immediate medical attention if flu-like symptoms are accompanied by an unusual rash, blistering, or other skin reaction after taking a medication. Prompt diagnosis and immediate discontinuation of the suspected medication can play a critical role in patient outcomes.
Many patients with Stevens-Johnson syndrome require hospitalization, often in specialized burn units or intensive care settings. Even after surviving the acute illness, some patients face years of ongoing medical challenges, including chronic pain, vision problems, scarring, and psychological trauma.
"One of the most difficult aspects of Stevens-Johnson syndrome is that patients often have no reason to suspect a common medication could trigger such a devastating reaction," says Brandon Smith, a partner with Childers, Schlueter & Smith who has represented individuals affected by SJS nationwide. "By the time the condition is recognized, patients may already be facing extensive hospitalization, permanent injuries, and a long recovery process."
When Do Stevens-Johnson Syndrome Cases Raise Legal Questions?
While Stevens-Johnson syndrome is a recognized risk associated with certain medications, legal questions sometimes arise when patients suffer severe injuries that may have been preventable.
In some cases, potential SJS lawsuits focus on the medication itself, including the warnings available to physicians and consumers, and whether adequate information was provided about known risks. In others, the legal issues center on the medical care a patient received after symptoms began.
Because the earliest symptoms of SJS often resemble the flu, a viral infection, or a less serious allergic reaction, patients are sometimes misdiagnosed during the critical early stages of the condition. Delays in diagnosis can allow the reaction to progress, potentially increasing the risk of extensive skin loss, infections, vision problems, and other serious complications.
"Every Stevens-Johnson syndrome case is unique," Smith explains. “When we evaluate these cases, we look closely at the medication history, the timeline of symptoms, and the scientific evidence linking a particular drug to the reaction. The goal is understanding what happened and whether the patient was adequately informed about the risks."
Although many SJS cases focus on medications and drug warnings, some investigations also examine whether healthcare providers appropriately evaluated and responded to a patient's symptoms.
For some patients and families, those questions eventually lead to a closer examination of whether a medication-related claim, a medical malpractice claim, or another legal remedy may be available.
What Consumers Should Know Before Taking Any Medication
Most people who take acetaminophen, ibuprofen, aspirin, and other over-the-counter medications will never experience Stevens-Johnson syndrome. These products have been used safely by millions of people for decades and remain important tools for treating pain, fever, and other common ailments. However, their widespread use doesn’t mean serious adverse reactions are impossible.
"Patients often focus on prescription medications when trying to identify what may have caused a severe reaction," Smith says. "But a thorough review of both prescription and over-the-counter drugs is often an important part of understanding what happened."
Knowing the ingredients in the medications you take, paying attention to new symptoms, and seeking prompt medical care when unusual reactions occur can help ensure potentially serious conditions such as SJS and TEN are recognized as early as possible.
