US FDA Mandates Vision Loss Warning for Wegovy and Mounjaro

From our other sites

The story

On November 9, the U.S. Food and Drug Administration (FDA) announced it is now requiring manufacturers of GLP-1 drugs used to treat obesity and diabetes, such as Wegovy and Mounjaro, to add a warning to their labeling about the risk of “non-arteritic anterior ischemic optic neuropathy (NAION)” — a condition in which blood flow to the optic nerve is cut off, potentially causing blindness. In the thread, some said the risk was acceptable when weighed against other health risks for people using the drugs to treat diabetes, while others questioned whether the same warning should apply to people misusing them as “weight-loss pills” outside their approved use. Many pushed back by citing data showing the condition affects only a few people per 100,000, arguing the risk of blindness from diabetes itself is far greater.

US FDA mandates “risk of vision loss” warning for Wegovy and Mounjaro

The U.S. Food and Drug Administration (FDA) has mandated that GLP-1 (glucagon-like peptide-1) obesity and diabetes drugs such as Wegovy and Mounjaro carry a warning about the “risk of vision loss.”

On the 9th (local time), the FDA announced it is requiring all manufacturers of GLP-1 drugs to add information to drug labeling about the increased risk of “non-arteritic anterior ischemic optic neuropathy (NAION),” a condition in which blood supply to the optic nerve is cut off, damaging optic nerve cells. GLP-1 drugs mimic the body’s own GLP-1 hormone, lowering blood sugar and suppressing appetite.

Source: news.yahoo.co.jp / Original article here

What people said

4AnonymousNov 11, 2026 11:53
Wait, there's one besides Mounjaro?
This "Wegovy" thing?
93AnonymousNov 11, 2026 12:34
Re: #4
That one actually came out first worldwide.
100AnonymousNov 11, 2026 12:36
Re: #4
In Japan, the main ones are:
• Ozempic • Trulicity • Mounjaro • Victoza • Rybelsus
• Ozempic (generic: semaglutide)
• Trulicity (generic: dulaglutide)
• Mounjaro (generic: tirzepatide / GIP/GLP-1 receptor agonist)
• Once-daily subcutaneous injection
• Victoza (generic: liraglutide)
• Once-daily oral pill
• Rybelsus
5AnonymousNov 11, 2026 11:54
But if you don't lose weight, you'll go blind from diabetes anyway.
15AnonymousNov 11, 2026 11:58
Mounjaro should be banned for everyone except Date from Sandwichman!! (Date Mitsuru, of the comedy duo Sandwichman, is famously diabetic)
204AnonymousNov 11, 2026 20:53
Re: #15
Isn't Date using Zepbound rather than Mounjaro? (Zepbound is the same drug, tirzepatide, just marketed for weight loss instead of diabetes)
19AnonymousNov 11, 2026 11:59
Re: #1
Just wear glasses. Non-arteritic anterior ischemic optic neuropathy is rare anyway, and staying obese carries a much bigger risk of dying — sometimes you have to pick the lesser evil.
22AnonymousNov 11, 2026 12:00
Re: #19
Unless you're seriously obese, being thin is actually the bigger health risk.
21AnonymousNov 11, 2026 11:59
They should've warned people they'll go bald instead of blind.
89AnonymousNov 11, 2026 12:33
Re: #21
There are reports that over 5% of users of both Wegovy and Mounjaro experience accelerated hair loss.
26AnonymousNov 11, 2026 12:04
Why do women always try to lose weight with supplements or starving themselves instead of exercising?!
32AnonymousNov 11, 2026 12:05
Re: #26
All you do is complain — you don't even have the knowledge to teach anyone how to actually lose weight.
49AnonymousNov 11, 2026 12:12
Re: #26
Because they want to take the easiest route possible.
173AnonymousNov 11, 2026 14:53
Re: #26
Why do you assume it's only women?
31AnonymousNov 11, 2026 12:05
I get why you shouldn't use it as a weight-loss drug, but are diabetic patients actually being told about the blindness risk?
35AnonymousNov 11, 2026 12:06
Re: #31
Diabetes itself already carries a blindness risk lol
36AnonymousNov 11, 2026 12:07
Re: #31
Wegovy is actually an obesity drug, you know.
43AnonymousNov 11, 2026 12:10
I've built up to running 10km a day, which burns about 600 calories. In the end, whether you gain or lose weight comes down to calories in minus (basal metabolic rate + calories burned), so just exercise, burn calories, and raise your metabolism like everyone else.
60AnonymousNov 11, 2026 12:15
Re: #43
I got diagnosed with type 2 diabetes, take medication, and made walking a habit on nice days, but my metabolism went up and food tastes so good I haven't lost much weight… though my walking range has easily expanded to where I can walk to the next town over or stroll around wherever I go.
199AnonymousNov 11, 2026 20:34
Re: #43
Exercise barely matters for weight loss — it's almost all about diet.
46AnonymousNov 11, 2026 12:11
Didn't the government approve this? Sounds like grounds for a drug-injury lawsuit.
51AnonymousNov 11, 2026 12:13
Re: #46
It's approved as a diabetes treatment, but I don't think it's approved as a weight-loss drug.
200AnonymousNov 11, 2026 20:35
Re: #46
Diabetes itself can cause blindness too, so this is just risk-hedging. The real problem is shady doctors prescribing it to people who aren't even diabetic — but you guys are against punishing that kind of thing, aren't you?
91AnonymousNov 11, 2026 12:33
*Note: the blindness risk from diabetes itself is dozens of times higher than this.

Mounjaro's vision-loss risk is about 2 to 10 people per 100,000.
106AnonymousNov 11, 2026 12:40
Re: #91
I looked it up — Mounjaro's retinopathy risk is 0.04%, which according to the data is actually lower than the 0.1% risk of pancreatitis. By the way, Mounjaro isn't a weight-loss drug — it's just a drug people mistake for one.
130AnonymousNov 11, 2026 13:07
Re: #106
Correction: that 0.04% is the proportion of NAION diagnoses among 10,000 combined users of semaglutide and tirzepatide. That works out to 4 in 10,000 — far lower than the 25-30% of diabetic patients who develop some form of retinopathy.
135AnonymousNov 11, 2026 13:12
Re: #106
It's a diabetes treatment drug, so they should just restrict prescriptions to people who are diabetic (or pre-diabetic) with a BMI of 30 or higher.

That's probably where this is headed anyway.
92AnonymousNov 11, 2026 12:33
Losing weight won't change your face, you know.
104AnonymousNov 11, 2026 12:38
Re: #92
I'm planning on becoming handsome, though?
116AnonymousNov 11, 2026 12:46
Re: #92
That's true when you're young, but once you're older, losing weight makes your face look gaunt — it's shocking.
95AnonymousNov 11, 2026 12:35
A drug that can blind you is terrifying. I wish they'd just pull it from the market.
97AnonymousNov 11, 2026 12:35
Re: #95
It's a necessary drug for people who actually have diabetes — it just makes no sense for "people who don't" to be using it.
109AnonymousNov 11, 2026 12:42
Re: #95
Diabetic patients already face blindness from diabetes itself (in 3-5% of all patients), so Mounjaro is arguably still the lesser risk.
124AnonymousNov 11, 2026 12:54
Re: #95
Didn't you think the same thing about the COVID vaccine?

Background and key points of this discussion

GLP-1 drugs were originally developed as diabetes treatments to lower blood sugar, but their appetite-suppressing effect has recently drawn attention to them as “weight-loss drugs.” What the FDA has now mandated is a warning label for “non-arteritic anterior ischemic optic neuropathy (NAION),” a condition caused by interrupted blood flow to the optic nerve; even by the data cited in the thread, the incidence is only a few people per 10,000 — fairly small compared to the risk of retinopathy from diabetes itself (affecting roughly 3-5% of patients). Where the thread split was over how to weigh this risk: some saw it as “worth it” for people who need the drugs to treat diabetes, when compared against other health risks, while others questioned whether people using them off-label as “weight-loss drugs” should be exposed to the same risk. One point readers can easily misunderstand is that this measure is not a sales suspension or usage ban — it simply mandates an added warning on the package insert, and does not represent any change in the drug’s overall safety assessment.

*This article is excerpted and summarized from the 5ch (News Speed+) thread “Vision loss risk from weight-loss drugs “Wegovy” and “Mounjaro,” can cause blindness in severe cases — US FDA mandates warning.”

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *