The Weight-Loss Shot Approved for Sleep Apnea: What the Tirzepatide Trials Show

Excess body fat is a known cause of obstructive sleep apnea, a condition linked to major heart and blood vessel problems.¹ Tirzepatide, a once-weekly injection used for weight loss, now has an FDA-approved use for moderate to severe obstructive sleep apnea in adults with obesity, alongside diet and activity changes.²

What the trials found

Two year-long, double-blind trials enrolled adults with obesity and moderate to severe sleep apnea.¹ One group wasn’t using CPAP or another pressure machine; the other kept using it.¹ At the start, people averaged about 50 breathing interruptions an hour.¹

	Not using CPAP	Using CPAP
Extra drop in interruptions per hour vs. placebo	about 20	about 24

Tirzepatide also lowered weight, blood pressure and a marker of inflammation, and people reported better sleep.¹ The most common side effects were stomach-related and mostly mild to moderate.¹ The trials were funded by the drug’s manufacturer.

What it doesn’t do

• It isn’t a replacement you start on your own. On average, people on tirzepatide still had roughly 20 to 26 interruptions an hour after a year, based on the trial averages, so ask about a repeat sleep test before changing CPAP use.¹
• It’s meant for people with obesity, not for sleep apnea in general.²

Label warnings to know

• Thyroid tumors in rats: don’t use it if you or a family member has had medullary thyroid cancer or MEN 2.²
• Tell every surgeon and endoscopy team you take it before a procedure.²
• Don’t combine it with other similar shots such as semaglutide.²
• Dosing starts low (2.5 mg weekly) and rises gradually to 10 or 15 mg for sleep apnea.²

Our guides to weight loss for sleep apnea, hair shedding on these shots, compounded versions and tirzepatide and birth control pills cover related questions. If you’re not sure you have sleep apnea, start with women and sleep apnea without snoring.

Questions to ask

1. Do I qualify based on my sleep test and weight?
2. Will my insurance cover it for sleep apnea?
3. Should I keep using CPAP, and when will we retest?
4. How will we manage side effects like nausea?

Try: “My sleep test showed moderate sleep apnea, and I struggle with CPAP. Would tirzepatide be an option for me, and would I still need the machine?”

Did I Do That in My Sleep? includes a 14-Night Lights-Out Record and a Visit Brief. Use them to track snoring reports, morning headaches and daytime sleepiness before and during treatment. See the book.