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FDA moves to limit the amount of Paracetamol to no more than 325 mg in each tablet or capsule

The FDA ( Food and Drug Administration ) has asked manufacturers of prescription combination products that contain Acetaminophen ( Paracetamol ) to limit the amount of Acetaminophen to no more than 325 mg in each tablet or capsule.

The FDA also has required manufacturers to update labels of all prescription combination Acetaminophen products to warn of the potential risk for severe liver injury.

Acetaminophen is a drug that relieves pain and fever and can be found in both prescription and over-the-counter ( OTC ) products. It is combined in many prescription products with other ingredients, usually opioids such as Codeine ( Tylenol with Codeine ), Oxycodone ( Percocet ), and Hydrocodone ( Vicodin ).

Overdose from prescription combination products containing Acetaminophen account for nearly half of all cases of Acetaminophen-related liver failure in the United States; many of which result in liver transplant or death.

The elimination of higher-dose prescription combination Acetaminophen products will be phased in over three years and should not create a shortage of pain medication. FDA believes that prescription combination products containing no more than 325 mg of Acetaminophen per tablet are effective for treating pain.

The risk of liver injury primarily occurs when patients take multiple products containing Acetaminophen at one time and exceed the current maximum dose of 4,000 milligrams within a 24-hour period.

Acetaminophen is also widely used as an over-the-counter pain and fever medication, and is combined with other OTC ingredients, such as cough and cold ingredients. The actions FDA is taking for prescription Acetaminophen products do not affect OTC Acetaminophen products.

Because of continued reports of liver injury, FDA proposes that boxed warnings, the agency’s strongest warning for prescription drugs, be added to all Acetaminophen prescription products. Most of the cases of severe liver injury occurred in patients who took more than the prescribed dose of an Acetaminophen-containing product in a 24-hour period, took more than one Acetaminophen-containing product at the same time, or drank alcohol while taking Acetaminophen products.

Source: FDA, 2011