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Weight loss drugs like Ozempic are all over the news. Here’s what I’m reading to keep up as a health reporter.

Ozempic, Wegovy, Mounjaro, Zepbound: Blockbuster weight loss drugs have been arguably the biggest health story of the last several years — and there are no signs their popularity will slow down anytime soon. Millions of Americans have taken the drugs, known collectively as GLP-1 agonist medications. Their potential benefits, well beyond treating obesity and diabetes, continue to mount as research pours in. But so do concerns over everything from cost to rare but life-threatening risks.

As a health journalist, I’m doing my best to keep up with all things weight loss drugs, but with headlines rolling in every day, it’s not easy! If you’re trying to stay on top of the latest, consider this your quick reference guide. Here’s what I’m reading about Ozempic and more.

The thing that really fascinates me about these medications is what they’re teaching us about how intertwined our brain, metabolism and cardiac health are. Speaking of — in August, a clinical trial showed that GLP-1 drugs don’t just make fullness last longer, they actually increase metabolism. That’s huge because it means the drugs aren’t just facilitating weight loss, they’re changing how people’s bodies process food. [Newsweek]

Not only does tirzepatide (the active ingredient in Mounjaro and Zepbound) help control blood sugar and increase the pancreas’s production of insulin for people with diabetes, but it also reduces the risk of developing the chronic condition in the first place — by a whopping 94%, according to new research on Eli Lilly’s drugs. That’s great news, but not hugely surprising considering that the medications were approved by the Food and Drug Administration specifically for fighting diabetes and obesity. What is surprising is how many other benefits the drugs seem to have. People taking Wegovy are 33% less likely to die of COVID-19, one study found. In fact, those taking GLP-1 weight loss medications were less likely than others to die from all manner of causes, including cardiovascular disease. Semaglutide (the active ingredient in Ozempic and Wegovy) “has far-reaching benefits beyond what we initially imagined,” Dr. Harlan Krumholz, a cardiologist at Yale School of Medicine, said at the European Society of Cardiology Congress 2024. Could these drugs keep people healthier and younger for longer? Researchers seem to think so. “It wouldn’t surprise me that improving people’s health this way actually slows down the aging process,” Krumholz said. [BBC]

Amid all the promising research, one alarming story also caught my eye: A woman is alleging that taking Wegovy and Ozempic caused part of her colon to “die.” Juanita Gantt had to have her colon removed, now has an ileostomy bag and is suing the drugmaker, Novo Nordisk. We can’t say for sure whether the drug caused her complications, but Ozempic can cause life-threatening intestinal blockages. The FDA last year added a warning about the rare but serious risk to Ozempic’s label.

Another recent study raised concerns about a link between weight loss drugs such as Ozempic and an increased risk of suicide. However, experts are skeptical and U.K. regulators ruled that there wasn’t a conclusive connection after a yearlong safety data review. [CBS News and Reuters]

The list price for a month’s supply of Ozempic is nearly $1,000 (although some insurance plans may cover the medication at no or little cost). High prices for semaglutide and other weight loss drugs have led some patients to break open their injection pens to stretch their supplies. In an attempt to offer a lower-cost option (and likely to dissuade patients from seeking other suppliers’ cheaper compounded drugs), Eli Lilly is offering a version of its drug Zepbound that could save patients up to 50%. The catch? They’ll have to buy their own syringes and draw the drug from a vial to inject themselves instead of using the costly but convenient injector pen that full-price Zepbound comes in. [The Atlantic and Futurism]

Novo Nordisk, maker of Ozempic and Wegovy, said the drugs will likely continue to be in short supply for the remainder of the year. Meanwhile, Eli Lilly has said that shortages of its drugs Zepbound and Mounjaro will soon be over. Eli Lilly’s new plan for distributing Zepbound in vials may help to alleviate supply strain too. The company is also going to court to try to stop compounding pharmacies from making cheaper copies of its drugs, which is only legal amid shortages. Will all of this help people get their hands on the drugs or make it even harder? We’ll see. [Washington Post]

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