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FDA Requires Additional Warning For OTC Pain Relievers

More detail of potential side effects required on labels

April 28, 2009

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The use of many popular over the counter (OTC) pain relievers carry the risks of side effects, and from now on, the Food and Drug Administration (FDA) says those risks have to be spelled out in detail on the product labels.

The Food and Drug Administration issued a final rule today that requires manufacturers of OTC pain relievers and fever reducers to revise their labeling to include warnings about potential safety risks associated with the use of these popular drugs.

Products covered by the FDA action include acetaminophen, and a class of drugs known as the nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs include aspirin, ibuprofen, naproxen, and ketoprofen.

Acetaminophen is in a class by itself. The revised labeling applies to all OTC pain relievers and fever reducers, including those that contain one of these ingredients in combination with other ingredients, such as in cold medicines containing pain relievers or fever reducers. The warning will state that the potential side effects include internal bleeding and liver damage.

"Acetaminophen and NSAIDs are commonly used drugs for both children and adults because they are effective in reducing fevers and relieving minor aches and pain, such as headaches and muscle aches," said Charles Ganley, M.D., director, FDA's Office of Nonprescription Drugs in the Center for Drug Evaluation and Research. "However, the risks associated with their use, need to be clearly identified on the label so that consumers taking these drugs are fully aware of the potential harm they can cause. It is important that they know how to take these medications safely to reduce their risk."

Under the final rule, manufacturers must ensure that the active ingredients of these drugs are prominently displayed on the drug labels on both the packages and bottles. The labeling also must warn of the risks of stomach bleeding for NSAIDs and severe liver damage for acetaminophen.

Since 2006, some manufacturers have voluntarily revised their product labeling to identify these potential safety concerns. However, the voluntary changes to labeling do not address all of the labeling requirements in the new rule, the FDA says,

For example, the new rule includes a warning on products containing acetaminophen that instructs consumers to ask a doctor before they are taking the blood thinning drug warfarin. The new rule requires all manufacturers to relabel their products within one year of today’s date.

Safety data reported in medical literature indicate that people sometimes take more acetaminophen than the labeling recommends. Others unknowingly take multiple products containing acetaminophen at the same time. Exceeding the recommended dosage of acetaminophen may increase the risks for severe liver damage. Alcohol use can also increase the risk of liver damage with acetaminophen.

The risk for stomach bleeding may increase in people who use NSAIDs and who are taking blood-thinning drugs (anticoagulants) or steroids. Stomach bleeding risks also increase for people who take multiple NSAIDs at the same time, or in people who take them longer than directed. Alcohol use can increase the risk for stomach bleeding with NSAIDs use.

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