The U.S. Food and Drug Administration (FDA) believes the fluoroquinolone antibiotic norfloxacin—sold as Noroxin—might cause nerve damage and tendon injuries.
What Is Noroxin and What Is It Prescribed For?
Noroxin is a member of the fluoroquinolone class of antibiotics, which the FDA approves for the treatment of urinary tract infections, some sexually transmitted diseases, and prostatitis. The Japanese pharmaceutical company Kyorin Seiyaku K.K. (Kyorin) patented norfloxacin in 1979 and licensed it to the American pharmaceutical company Merck & Co., Inc. The FDA approved Noroxin in 1986, and it comes in the form of oral tablets, injectable solutions, and topical formulations applied to the ears and eyes.
According to its label, Noroxin works by inhibiting DNA synthesis in bacteria and is bacteriacidal.
Noroxin Might Cause Dangerous Side Effects
According to its drug label, Noroxin might cause the following adverse side effects:
- Tendon rupture
- Myasthenia gravis (muscle weakness)
- Central nervous system disorders (tremors, restlessness, lightheadedness, and confusion)
- Hypersensitivity reactions (loss of consciousness and cardiovascular collapse)
- Life-threatening skin reactions (toxic epidermal necrolysis, Stevens-Johnson syndrome)
- Clostridium difficile associated diarrhea (diarrhea caused by overgrowth of the bacterium C. difficile)
- Peripheral neuropathy (pain, burning, tingling, numbness, and nerve damage)
FDA warnings associated with Noroxin and other fluoroquinolone antibiotics have become more common over time. In 2008, the agency added a black box warning, the most serious type of alert, to Noroxin’s label to advise the public that Noroxin use is associated with tendon rupture. Patients over 60, those taking corticosteroids, and patients who have undergone a transplant are the most likely to suffer from a tendon rupture. Sometimes tendon problems can occur long after patients have ceased taking Noroxin.
In August 2013, the FDA issued a drug safety communication advising the public that it was requiring a label-change to Noroxin and other fluoroquinolone antibiotics to “better describe the serious side effect of peripheral neuropathy,” which can occur soon after Noroxin treatment begins. It is associated with oral and injectable fluoroquinolones but not topical formulations of the drugs that are applied to the eyes and ears.
RLG’s Noroxin Lawyers Will Make Things Easier
The process of demanding compensation for the harm you’ve suffered can be complicated, even if it doesn’t seem fair that you should have to go through even more trouble to be made whole again. The lawyers at the Rottenstein Law Group believe that obtaining legal satisfaction from those who harmed you shouldn’t require more hardship. That’s why we do everything we can to streamline the process, and we will file a Noroxin lawsuit on your behalf if necessary. RLG will also keep you up to date on any Noroxin class action lawsuits, additional FDA Noroxin warnings, and Noroxin FDA recall announcements. If you have taken Noroxin and believe it harmed you, contact RLG today.