Orforglipron

A once-daily GLP-1 pill with no food or water rules.

KEY EVIDENCE

ATTAIN-1

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ANIMATED EXPLAINER · ORFORGLIPRON
STEP 1 OF 4
A pill, not a peptide
Orforglipron is a small molecule absorbed easily.

How it's taken

• Once-daily pill, with or without food

• The dose is increased in steps to reduce side effects

Side effects at a glance

• Nausea, vomiting, diarrhea and constipation, mostly during dose increases

Rare but serious

Class-wide GLP-1 cautions apply, including pancreatitis and gallbladder disease.

Good to know

A small-molecule GLP-1 pill can suit people who prefer to avoid injections and avoids the fasting rules of oral semaglutide.

AT A GLANCE

Type

Medication

Brand names

Foundayo

Status

FDA-approved

Reviewed by

Farhan Tahir, MD

Is this treatment right for you?

Prescription medicines and procedures need individual medical advice. Dr. Tahir’s team offers consults through Youthful Medicine.

How it works

A small-molecule (non-peptide) GLP-1 receptor agonist (Foundayo). Because it is not a peptide, it is absorbed without the fasting and water timing that oral semaglutide needs.

What the evidence shows

In ATTAIN-1, adults with obesity on the 36 mg dose lost a mean 11.2% of body weight over 72 weeks versus 2.1% on placebo, with improvements in waist size, blood pressure and cholesterol. The FDA approved it on April 1, 2026 after a 50-day priority review.

Side effects & cautions

Side effects are mainly gastrointestinal; 5–10% of trial participants stopped because of them, compared with about 3% on placebo. Class-wide GLP-1 cautions apply.

PRIMARY SOURCE

Eli Lilly. FDA approves Foundayo (orforglipron). April 1, 2026.

A small-molecule GLP-1 agonist survives digestion, is absorbed from the gut and activates the same receptor as the injections. Orforglipron can be taken without food or water timing rules.

TYPICAL RESULT IN TRIALS

≈11% mean weight loss at 72 weeks (36 mg)

PHYSICIAN FIRST

Is this right for you?

Prescription treatments need a review of your history, labs and other medicines. Never start or stop one on your own.

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