10 Dangerous Drug Cases in 2026: Are You Eligible to Join?

Dangerous drugs are far more common than they should be. While pharmaceutical companies have a legal duty to ensure that their drugs are safe for use as marketed, numerous patients suffer serious complications caused by dangerous drugs each year. If you have suffered serious complications, a dangerous drug lawyer may be able to help you seek just compensation—and you may be eligible to join one of the numerous cases that are ongoing in 2026.  

These Are the 10 Biggest Dangerous Drug Cases Pending in 2026

Are you eligible to join an ongoing dangerous drug case? Here are the 10 biggest cases that are pending in 2026:

1. GLP-1 Weight Loss Drugs (Mounjaro, Ozempic, Rybelsus and Wegovy)

As of January 5, 2026, there were more than 3,000 lawsuits pending in the national glucagon-like peptide-1 receptor agonist (GLP-1) litigation involving Ozempic, Wegovy and other popular weight loss drugs. These cases primarily involve claims for gastroparesis and other gastrointestinal (GI) conditions, though some plaintiffs have filed claims for non-arteritic anterior ischemic optic neuropathy (NAION) and other conditions as well.

The GLP-1 multidistrict litigation (MDL) has rapidly grown into one of the largest MDL proceedings in the country over the past 12 months. It is still in its early stages, and we expect it to continue growing rapidly this year.

2. Taxotere

There were nearly 2,200 lawsuits pending in the national MDL proceeding involving Taxotere as of January 5, 2026. These lawsuits involve allegations that Taxotere, a chemotherapy drug, can cause both hair loss and vision loss that were not adequately disclosed to healthcare providers or patients. While Sanofi attempted to get patients’ Taxotere lawsuits thrown out last year, the judge presiding over the litigation denied Sanofi’s motion to dismiss in December.

3. Suboxone

There were just over 1,850 lawsuits pending in the national MDL proceeding involving Suboxone as of January 5, 2026. These lawsuits involve allegations that Suboxone, a prescription medication for treating opioid addiction, can cause tooth decay and other serious dental problems. While the Suboxone litigation has been going on for a while now, it remains active in 2026, and we have seen some notable progress in recent months.

4. Depo-Provera

The national MDL proceeding involving Depo-Provera has also been growing rapidly over the past 12 months. There were just over 1,750 lawsuits pending as of January 5, 2026, and the Depo-Provera MDL could overtake the Suboxone MDL for third on this list in the coming months. This litigation involves allegations that Depo-Provera, an injectable contraceptive, can cause meningiomas and other potentially serious complications.

5. Valsartan, Losartan and Irbesartan

Several drug companies are facing lawsuits involving the generic drugs valsartan, losartan and irbesartan. These lawsuits arise out of reported contamination of these drugs with N-nitrosodimethylamine (NDMA), which is classified as a probable human carcinogen. The contamination at issue in the litigation occurred in 2018; and, as a result, new filings have slowed down significantly. However, there were still nearly 1,400 lawsuits pending as of January 5, 2026, and patients who have recently been diagnosed with cancer may still be eligible to file.

6. Zantac

GlaxoSmithKline agreed to settle tens of thousands of Zantac lawsuits in 2024, with the total settlement amount estimated to be in excess of $2 billion. However, there were still more than 1,000 Zantac lawsuits pending in a national MDL proceeding as of January 5, 2026 (in addition to lawsuits pending outside of the MDL), and many patients remain eligible to file these lawsuits as well. Zantac lawsuits involve allegations that the popular heartburn drug can cause various cancers, including bladder cancer, colorectal cancer, kidney cancer and prostate cancer, among others.

7. Zostavax

Merck & Co. is facing more than 800 active lawsuits involving allegations that its shingles vaccine, Zostavax, can cause blindness, brain damage, liver failure, paralysis, and other serious and potentially fatal complications. While some lawsuits against Merck & Co. involving Zostavax have been dismissed, many remain pending, and the company has already settled some plaintiffs’ cases. As with all of the drugs on this list, if you have been diagnosed with serious complications linked to Zostavax, you should talk to an experienced dangerous drug lawyer about your legal rights.

8. Elmiron

There were just over 700 lawsuits pending in a national MDL proceeding involving Elmiron, a prescription medication used to treat bladder pain and discomfort, as of January 5, 2026. These lawsuits involve allegations that Elmiron can cause serious and irreversible eye damage, including damage resulting in vision loss. Many of the cases filed in the Elmiron MDL have reportedly been settled, and there are reports that this litigation may be resolved in 2026. With that said, there are no guarantees—and, even if the MDL settles, this will not prevent additional patients from coming forward individually.

9. Fosamax

The Fosamax MDL is among the longest-running dangerous drug MDL proceedings in the country, but there are some indications that this litigation could finally see a resolution in 2026 as well (though, again, there are no guarantees). There were 572 lawsuits pending in the Fosamax MDL as of January 5, 2026, with plaintiffs alleging that Fosamax, an osteoporosis medication, can significantly increase patients’ risk of suffering femoral fractures.  

10. Tepezza

The Tepezza MDL has been growing slowly but steadily over the past 12 months. There were 273 lawsuits pending in the MDL as of January 5, 2026. These lawsuits involve allegations that Tepezza, a medication for thyroid eye disease (TED), can cause tinnitus and hearing loss. This is an active MDL proceeding and it is believed that many Tepezza patients remain eligible to file.

Do You Have a Case? Find Out from a Dangerous Drug Lawyer at Searcy Denney

Are you eligible to join one of these dangerous drug cases in 2026? If you have questions about your legal rights, we invite you to get in touch. To discuss your legal rights with an experienced dangerous drug lawyer at Searcy Denney, call us at 800-780-8607 or request a free consultation online today.