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#GLP-1 class

Coverage of the GLP-1 receptor agonist family and its successors.

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Tirzepatide at 6 months: who stays on it

A US claims study of 22,512 tirzepatide starters found 68% still on the drug at six months. Here is what that number does and does not tell you.

7 Sept 2026 · PeptideMethods Editorial Team · 5 min read
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Tirzepatide cuts liver fat despite PNPLA3

A post hoc look at SURPASS-3 MRI finds tirzepatide cut liver fat in type 2 diabetes whether or not patients carried the PNPLA3 I148M gene variant.

7 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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Can peptides fix a slow metabolism?

A reader on r/peptides asked if peptides could fix years of unexplained weight gain. Here is what GLP-1 drugs actually do, and what to test first.

6 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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Can GLP-1 Drugs Help Ulcerative Colitis?

A matched cohort study links semaglutide and liraglutide use to higher ulcerative colitis remission, though neither drug is approved for IBD.

6 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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Old retatrutide pen: still safe to use?

Retatrutide is investigational, and even FDA-approved GLP-1 pens must be discarded weeks after first use, not months later.

6 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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Orzeyful isn't Ozempic for the brain

The FDA approved oveporexton for narcolepsy in August 2026. It targets the neuropeptide orexin, but the drug itself is not a peptide like semaglutide.

6 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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Tirzepatide and a rare skin rash: one case

A 2026 case report describes a chest rash clearing during tirzepatide-associated weight loss. Here is what one patient shows, and does not.

6 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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Tirzepatide and Prader-Willi diabetes

A 2026 case report describes tirzepatide easing treatment-resistant diabetes in an adult with Prader-Willi syndrome. Here is what one patient shows.

6 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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GLP-1 drugs and erectile dysfunction

A new meta-analysis links GLP-1 drugs like semaglutide and tirzepatide to modest erectile-function gains, though other research disagrees.

5 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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GLP-1 Drugs and Psoriasis Healthcare Use

A new JEADV letter examines whether GLP-1 and GLP-1/GIP drugs like tirzepatide and semaglutide change healthcare use in psoriasis patients.

5 Sept 2026 · PeptideMethods Editorial Team · 4 min read
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MASLD treatment: what a 2026 review found

A Gut and Liver review maps current MASLD treatment options and a growing pipeline, from lifestyle change to GLP-1 agonists and thyroid receptor drugs.

5 Sept 2026 · PeptideMethods Editorial Team · 5 min read
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Oral incretin therapies for weight loss

Oral semaglutide and orforglipron bring GLP-1 based weight management into tablet form. Here is what the evidence does and does not show.

5 Sept 2026 · PeptideMethods Editorial Team · 4 min read