Fixed dose (phase 2)
Trial- Dose
- 1, 3, 6 or 9 mg
- How often
- Once weekly
- How long
- 48 weeks
Started at the full dose. 9 mg gave 20.1% mean loss vs 0.4% on placebo, if all stayed on treatment, but nausea (33%) and fatigue (43%) were common.
LY3841136
An investigational once-weekly injection that copies amylin, a fullness hormone the pancreas releases with insulin, and acts mainly on the amylin 1 receptor. It reduces appetite and food intake.
None of these uses is approved. Uses tested in people come first, then claims that rest on animal studies or user reports.
Trial: tested in people, with the result. No study: nothing published supports it.
Every compound’s uses, by body system: evidence map, and by condition: conditions A to Z.
Category 2 is FDA’s list of bulk substances that may present significant safety risks in compounding. The 503A bulks list adds substances that pharmacies may compound with. Advisory committee votes are advice; FDA makes the final decision. Sport status follows the WADA Prohibited List in force since January 1, 2026; athletes should confirm with their anti-doping organization. Checked October 5, 2026. Status outside the US checked October 7, 2026 against EMA, MHRA, Health Canada and TGA records. By country: EU, UK, Canada, Australia. Status of every compound.
Eloralintide is a long-acting copy of amylin, a hormone the pancreas releases with insulin after meals. In cell studies it switched on the amylin 1 receptor about 12 times more strongly than the closely related calcitonin receptor. Natural amylin signals fullness to the brain and slows stomach emptying. In trials it lowered appetite and weight, and a fatty-acid chain keeps it in the blood for about two weeks.
TrialMainly from studies in people.
Whether its receptor selectivity means fewer side effects than other amylin drugs hasn’t been tested head to head, and why it slows the heart rate isn’t known. Safety beyond 48 weeks is unknown.
Billings 2025
Obesity without diabetes (phase 2): 1, 3, 6 or 9 mg once weekly from the first dose, or stepped up to 9 mg (6 mg for 20 weeks, or 3 and 6 mg for 4 weeks each). At 48 weeks weight fell 9.4–20.1% vs 0.4% on placebo, if everyone had stayed on treatment.
Lilly press release, Sept 2026
Type 2 diabetes (phase 2): eloralintide alone at target doses of 3, 6 or 9 mg weekly; all arms started at 1 or 3 mg. At 48 weeks weight fell 8.2–12.3% vs 3.0% on placebo, if everyone had stayed on treatment.
Bhattachar 2026
Early study: 1.2–12 mg once weekly for 12 weeks with no step-up. Weight fell up to 11.3% more than on placebo, at 12 mg.
Continuous, shown over 26 weeks
The ways Eloralintide is most often run, each tagged with where it comes from.
Started at the full dose. 9 mg gave 20.1% mean loss vs 0.4% on placebo, if all stayed on treatment, but nausea (33%) and fatigue (43%) were common.
3 mg for 4 weeks, 6 mg for 4, then 9 mg: 16.5% loss, nausea in 25%. 6 mg for 20 weeks, then 9 mg: 19.9% loss, nausea in 54%.
Alone: 8.2–12.3% loss vs 3.0% on placebo; with tirzepatide, up to 23.3%, if all stayed on treatment (press release, September 2026).
Trials in obesity, type 2 diabetes, sleep apnea, knee osteoarthritis pain, and added to an incretin drug; results expected from 2028.
| Period | Dose |
|---|---|
| Weeks 1–4 | 3 mg |
| Weeks 5–8 | 6 mg |
| Week 9 on | 9 mg |
Injected under the skin once a week in trials. The papers don’t name the sites; weekly injections usually go in the belly, thigh or upper arm, rotated each week.
No label or published trial rule. Common practice with weekly injections is to take the next dose on schedule without doubling up. Its half-life of about two weeks means levels fall slowly after a missed dose.
A single 12 mg dose lowered weight 4.4% vs a 0.6% gain on placebo in healthy adults.
TrialWeekly doses with no step-up lowered weight 2.6–11.3% more than placebo, most at 12 mg.
Trial9.4–20.1% mean loss vs 0.4% on placebo, if everyone had stayed on treatment. On 9 mg, 82% lost at least 10% of their weight vs 13% on placebo.
TrialAlone: 8.2–12.3% loss and HbA1c down 1.1–1.4 points, vs 3.0% and 0.3 on placebo (press release, September 2026).
TrialNausea (11–64% by dose vs 14% on placebo)
Highest when starting at 6 mg; 25% with the 3–6–9 mg step-up. Mostly mild to moderate. Ongoing vomiting needs medical advice.
Fatigue (0–46% by dose vs 12% on placebo)
Rose with dose (43% at 9 mg) and was lower with the slow step-up (21%). Report exhaustion that doesn’t ease.
Constipation (15% vs 6%) and diarrhea (15% vs 9%) across doses
Fluids and fiber help constipation. Don’t push through repeated vomiting or diarrhea.
Slower pulse (down 14.4 beats a minute at 12 mg over 12 weeks)
No symptoms in the early study, but slow heart rate was reported in 9 of 210 people at 48 weeks vs none on placebo. Dizziness or fainting needs checking.
Hair loss (7% vs 0% on placebo)
Most common at 9 mg (6 of 54). Whether the drug or the weight loss causes it isn’t known.
Severe belly pain that won’t go away, repeated vomiting or signs of dehydration, fainting or a very slow pulse, thoughts of self-harm, or face or throat swelling or trouble breathing: get medical help.
The side effects people ask about most, answered one by one. Each answer says where it comes from.
Trial: reported in human studies. Precaution: a concern that follows from how it works or from a related drug, not measured. Not reported: studied in people and not reported. A side effect that hasn’t been reported can still happen, especially with long or high-dose use. Any of these across every compound: the side-effect finder.
No product label covers eloralintide, so these come from human studies and from precautions based on how it works. Most important first.
Only interactions stated on a product label or measured in a human study are listed.
Trial: seen in human studies, or a group those studies left out. Precaution: follows from how it works or from a related drug, and hasn’t been tested. This isn’t a complete list: a pharmacist or doctor can check a specific medicine or condition. Every documented interaction, by medicine: drug interactions.
What’s known about pregnancy, breastfeeding, kidney and liver problems, age and surgery. Where nothing has been studied, the row says so.
Precaution: not studied, so the caution follows from how it works or from a related drug. Ages are given as approved or studied; this site never gives doses for children. Across every compound: pregnancy, breastfeeding, kidney disease, liver disease, older adults and surgery.
Lilly’s planned combination: up to 23.3% loss at 48 weeks vs 14.8% on tirzepatide 15 mg alone in type 2 diabetes, with more stomach side effects (press release). Phase 3 is planned for late 2026.
4 key published human studies, with how many people took part. Animal studies aren’t listed here.
Weight fell 9.4–20.1% vs 0.4% on placebo, if everyone had stayed on treatment; nausea and fatigue rose with dose.
Billings et al., Lancet 2025, PMID 41207310
Eloralintide alone lowered weight 8.2–12.3% vs 3.0% on placebo, and up to 23.3% with tirzepatide, if everyone had stayed on treatment.
Eli Lilly press release, September 2026 (NCT06603571)
Weight fell 2.6–11.3% more than on placebo; stomach side effects were uncommon, and pulse fell up to 14.4 beats a minute.
Bhattachar et al., Diabetes Obes Metab 2026, PMID 41559929
Half-life was 13–15 days; 12 mg lowered weight 4.4% at 4 weeks vs a 0.6% gain on placebo.
Briere et al., Mol Metab 2025, PMID 41109426
Registered trials that are still running, or that finished without published results, most important first. Checked on ClinicalTrials.gov, October 7, 2026.
ENLIGHTEN-1: four eloralintide doses vs placebo for 64 weeks in about 1,980 adults with obesity or overweight without diabetes: weight change
Recruiting; main results expected March 2028
ENLIGHTEN-2: four doses vs placebo for 64 weeks in about 1,035 adults with type 2 diabetes and overweight: weight change
Recruiting; main results expected January 2028
ENLIGHTEN-6: eloralintide vs placebo added to a weekly incretin drug in about 900 adults with persistent obesity: weight change at 64 weeks
Recruiting; main results expected June 2028
ENLIGHTEN-3: eloralintide vs placebo in about 800 adults with obstructive sleep apnea and obesity: weight and breathing pauses at 64 weeks
Recruiting; main results expected March 2028
ENLIGHTEN-4: eloralintide vs placebo in about 900 adults with knee osteoarthritis pain and obesity: weight and knee pain at 64 weeks
Recruiting; main results expected March 2028
Every compound’s registered trials: trials under way.
Eloralintide alone has been tested in a 48-week phase 2 trial of 263 adults without diabetes (210 got the drug), a two-part phase 1 study of 148 people, and a 48-week diabetes trial reported only by press release, all run by Eli Lilly. Five 64-week phase 3 trials began in 2025–2026 and report from 2028. Long-term safety, use in older adults or kidney or liver disease, and vials sold online are untested.
There’s no product to mix. Trial supplies aren’t sold, and vials listed online as eloralintide “for research” aren’t the trial product and haven’t been tested in people.
Every compound side by side: the half-life chart and the storage chart.
Every compound’s numbers: the identifiers table.
No approved product exists, and trial supplies aren’t sold. Powder sold online as eloralintide has no regulated identity, purity or dose, and none has been tested in a trial; the trial product’s salt form and formulation haven’t been published.
An investigational once-weekly injection that copies amylin, a fullness hormone the pancreas releases with insulin, and acts mainly on the amylin 1 receptor. It reduces appetite and food intake.
Eloralintide is a long-acting copy of amylin, a hormone the pancreas releases with insulin after meals. In cell studies it switched on the amylin 1 receptor about 12 times more strongly than the closely related calcitonin receptor. Natural amylin signals fullness to the brain and slows stomach emptying. In trials it lowered appetite and weight, and a fatty-acid chain keeps it in the blood for about two weeks. Whether its receptor selectivity means fewer side effects than other amylin drugs hasn’t been tested head to head, and why it slows the heart rate isn’t known. Safety beyond 48 weeks is unknown.
Not approved in the US or anywhere else. Eli Lilly began phase 3 trials (ENLIGHTEN) in December 2025; none has reported yet. Never nominated for FDA’s 503A or 503B bulk lists and not in any of FDA’s compounding categories (lists updated May 2026 and March 2025). It isn’t part of any approved drug, so it can’t legally be compounded.
From human studies (Billings 2025): Obesity without diabetes (phase 2): 1, 3, 6 or 9 mg once weekly from the first dose, or stepped up to 9 mg (6 mg for 20 weeks, or 3 and 6 mg for 4 weeks each). At 48 weeks weight fell 9.4–20.1% vs 0.4% on placebo, if everyone had stayed on treatment. Type 2 diabetes (phase 2): eloralintide alone at target doses of 3, 6 or 9 mg weekly; all arms started at 1 or 3 mg. At 48 weeks weight fell 8.2–12.3% vs 3.0% on placebo, if everyone had stayed on treatment (Lilly press release, Sept 2026). These are the amounts sources reference, not recommendations.
Injected under the skin once a week in trials, either starting at the full dose or stepped up over 8–20 weeks. It isn’t sold: it’s available only in clinical trials.
No product label covers eloralintide, so these come from human studies and from precautions based on how it works. Pregnancy or breastfeeding: No human safety data exist. Slow heart rhythm (bradycardia): Excluded from the phase 2 trial. Eloralintide lowered the pulse by up to 14.4 beats a minute over 12 weeks, and slow heart rate was reported in 9 of 210 people vs none on placebo. Past suicide attempts or depression: People with past suicide attempts were excluded. In a 12-week study, 4 of 73 people on eloralintide had low-mood events; 3 on the top dose stopped, and their symptoms cleared in 2–4 days. The “Who should avoid it” section lists 4 more groups and one interaction.
About 13 to 15 days (310 to 366 hours), measured in human studies. Single subcutaneous doses of 0.4 to 12 mg in healthy adults (phase 1); peak levels came 3 to 5.5 days after the dose.
Before mixing: Not published for the trial product; no label exists. After mixing: Not published. This is common practice; no product label covers it.
Probably. Not named on WADA’s 2026 list, but its S0 rule bans drugs with no current human approval anywhere, at all times.
Yes. The human studies section lists 4 published studies. The largest, from 2026, included 367 people. Eloralintide alone lowered weight 8.2–12.3% vs 3.0% on placebo, and up to 23.3% with tirzepatide, if everyone had stayed on treatment.
Trial 48 weeks: 210 adults in the phase 2 obesity trial, plus eloralintide-alone arms of a 48-week diabetes trial reported by press release.
Trial Only weekly injections under the skin have been tested in people. No oral, nasal or patch form has published human data.
No study No data: no study has looked at alcohol with eloralintide.
Trial Being developed with tirzepatide (a GIP and GLP-1 drug): up to 23.3% loss vs 14.8% on tirzepatide alone at 48 weeks (press release). A phase 3 trial tests adding it to a weekly incretin drug.
Trial No label and no overdose data. Early studies gave single doses up to 12 mg and 12 weekly 12 mg doses; stomach upset, fatigue and a slower pulse were seen. Call Poison Help (1-800-222-1222), or emergency services for severe symptoms.
For the protocol details
For how it works, who should avoid it and the limits of the evidence
For uses, the side-effect questions, special situations, trials, identifiers and status outside the US