Tesamorelin vs ipamorelin: approval, evidence and cost compared

Compounded drugs are not FDA-approved. Neither peptide is among the six covered by the interim HHS policy of 28 Oct 2026; see our peptide legal status tracker. No new FDA or HHS action on either was found when we checked on 10 Nov 2026.

Side by side

	Tesamorelin	Ipamorelin
What it is	A modified version of growth hormone releasing hormone, the brain's signal to release growth hormone	A lab-made five-amino-acid peptide that copies ghrelin, a hunger hormone that also triggers growth hormone
FDA-approved product	Yes: Egrifta WR and Egrifta SV	None
Approved use	Reducing excess abdominal fat in HIV-infected adults with lipodystrophy	None
Can a pharmacy make it?	Compounded versions exist; they are not the approved product	No route we found; on FDA's Category 2 list
Human evidence	Two randomized trials of 412 and 404 people for its approved use	One study of how the body handles it, and one surgery trial that missed its goal
Tracked telehealth programs	Some print a monthly price	None

How they differ in what they do

Both end in a pulse of growth hormone, which is why people compare them. They start from different places. Tesamorelin acts on the growth hormone releasing hormone receptor, the same one sermorelin uses. Ipamorelin acts on the ghrelin receptor. The paper that introduced ipamorelin said it "stimulates GH release via a GHRP-like receptor" (Raun 1998, PubMed 9849822). We found no head-to-head human trial of the two, so claims that one is stronger or gentler are not backed by data.

What the tesamorelin label says

The Egrifta WR label states it "is indicated for the reduction of excess abdominal fat in HIV-infected adult patients with lipodystrophy" (read 10 Nov 2026). Its limits are plain: "EGRIFTA WR is not indicated for weight loss management as it has a weight neutral effect." The label also says long-term heart safety has not been established.

It should not be used with pituitary problems, active cancer or pregnancy. Its warnings include tumor growth, raised IGF-1 (a hormone that rises with growth hormone), fluid retention and higher blood sugar (DailyMed).

What the trials show

Tesamorelin's evidence is for one group. The label describes two randomized studies of "412 HIV-infected patients with lipodystrophy and excess abdominal fat" and "404 HIV-infected patients with lipodystrophy and excess abdominal fat." Deep belly fat fell over 26 weeks, and came back when some patients were switched to a dummy shot (placebo). We found no equivalent trial for general weight loss or muscle gain in other adults.

Ipamorelin's record in people is thin. One study in healthy men measured how the body absorbs and clears it and how much growth hormone rose (Gobburu 1999, PubMed 10496658). That shows what happens in the blood, not a benefit. The one trial of results we found gave it to 117 adults after bowel surgery. It was "well tolerated" but did no better than placebo on the main goals (Beck 2014, PubMed 25331030).

Where FDA stands on ipamorelin

FDA lists ipamorelin in Category 2, substances that may present significant safety risks when compounded (read 10 Nov 2026, FDA page). Its reasons are that compounded ipamorelin may trigger an immune reaction, and that a published study reported "serious adverse events including death" when it was given into a vein for a gut problem.

A 503A pharmacy is a state-licensed local pharmacy that makes a drug for one patient. For these pharmacies the request to allow ipamorelin was withdrawn, and it is not in the HHS policy. A seller offering it works outside the federal routes we found, so we do not compare such sellers. See research vs prescription peptides.

Cost and access

Programs that print a price for compounded tesamorelin start at $195 a month at FoundationRx (3-month plan). Every one is on the tesamorelin price page. The approved brand prints no price; coverage depends on your plan, so ask your insurer and prescriber. We publish no ipamorelin price. For the wider picture see what peptides cost.

If you want a third option, sermorelin is the growth hormone peptide most telehealth programs prescribe: see sermorelin vs tesamorelin and sermorelin vs ipamorelin.

Which fits which reader

• HIV with excess belly fat: tesamorelin has the approved use and trial data. Talk to your HIV clinician.
• Healthy adult asking about hormone optimization: neither has strong evidence. Tesamorelin would be off-label, and ipamorelin has no federal route.
• Active cancer, pituitary disease or pregnancy: the tesamorelin label advises against it. Raise ipamorelin with a prescriber too.

Your prescriber sets the form and amount; we do not publish doses.

FAQ

Tesamorelin vs ipamorelin: which is better?

Neither is better in general. Tesamorelin is FDA-approved for belly fat in people with HIV lipodystrophy and has two large randomized trials there. Ipamorelin has no approved product and thin human data. No head-to-head trial exists, so a clear winner is a marketing claim.

Is ipamorelin vs tesamorelin the same thing?

No. They are different molecules acting on different receptors. Tesamorelin copies the brain's growth hormone releasing signal and is sold as the approved brand Egrifta. Ipamorelin copies a ghrelin-type signal and has no approved product.

Is tesamorelin FDA-approved?

Yes, for one use: reducing excess abdominal fat in HIV-infected adults with lipodystrophy. The label says it is not indicated for weight loss management. Compounded and research-labeled versions are not the approved product.

Is ipamorelin legal?

Ipamorelin is not FDA-approved. FDA lists it in Category 2 because of safety concerns, and it is not in the HHS policy. Pharmacies selling it are outside the federal routes we found. Status can change, so check the date on our tracker.

Tesamorelin vs sermorelin vs ipamorelin: how do all three compare?

Tesamorelin is approved for one narrow use. Sermorelin has no approved product today but can be compounded on a prescription, with small adult trials. Ipamorelin has no approved product and no compounding route we found. Our linked sermorelin comparisons give the detail.

Can you get tesamorelin or ipamorelin from a telehealth program?

Some licensed programs print a price for compounded tesamorelin, listed on our tesamorelin price page. We track none that list ipamorelin. Sites that sell it are usually research-labeled vendors, which we do not cover.

Bottom line

Tesamorelin is the approved, narrow drug with real trials; ipamorelin has no approval and little human evidence. To price the options, use the cost page or see our best peptide programs.

For the label, who qualifies and cost, see our tesamorelin guide.