Cardiovascular & General; Hormonal & Sexual Health / Cardiovascular

Adrenomedullin

Adrenomedullin was first isolated in 1993 from a human adrenal tumour, which is where it got its name, and it drops blood pressure hard: two hours of it lowered systolic pressure by about 25 mmHg in eight men with hypertension, and raised cardiac output by half in seven patients with heart failure. Its other job is holding the vessel lining watertight, which is why levels climb in sepsis, the disease of leaking capillaries, and why higher levels track with worse outcomes. Every human study on file is a single short infusion measuring pressures and flows. None asks whether giving it changes how anyone fares.

Last updated 12 August 2026

Studied forVascular barrier research · Blood pressure context · Sepsis biomarker research

Evidence on file1 animal study · 1 citation not yet graded

Strongest sourceAdrenomedullin: A Novel Hypotensive Peptide Isolated from Human Pheochromocytoma (Biochemical and Biophysical… (animal study)

Mechanism

Acts at calcitonin receptor-like receptor paired with RAMP2 or RAMP3, raising cAMP and stabilising endothelial barrier function.

Reported effects

What sources associate with this compound. Reported categories, not outcomes we have graded — each would need its own citation and rung.

Vascular barrier research
Blood pressure context
Sepsis biomarker research

Dosing on file unverified

Phase 1: 3, 9, 15 ng/kg/min × 12h; Phase 2 stroke: 30-56 µg/kg total over 7 days; Phase 1: 3, 9, 15 ng/kg/min continuous 12-h infusion; 2.9-5.8 pmol/kg/min; 19.9 pmol/kg/min

Carried from a source that labels it unverified, and reproduced with that label attached. A record of what is reported, not a recommendation. No citation on this page establishes it.

Half-life, storage & sport

Elimination half-life: 22 min (human, IV) — study. Scientific reports 2024; humans; figure restated by this paper from earlier reports (refs 44, 47), no cohort described.

The half-life on file is 22 min, measured intravenously. No dosing schedule could be read from this record, so the curve below is one dose drawn from the moment it is given. Nothing here says how often it is repeated.

One dose. 1.8 h of decay, normalised to its own peak.

The rise is not modelled and the axis is not a blood level. No absorption rate constant and no volume of distribution are on file, so each dose appears at full height the instant it is given, and the axis is percent of this compound's own peak.

Literature on file 3

animal in vivo
Adrenomedullin: A Novel Hypotensive Peptide Isolated from Human Pheochromocytoma (Biochemical and Biophysical Research Communications 1993, cited 1761x) graded on: an animal model — read from the indexed abstract — “rats”
review or editorial
Vascular Actions of Calcitonin Gene-Related Peptide and Adrenomedullin (Physiological Reviews 2004, cited 657x) graded on: indexed as "Review" - secondary literature, not a study — “Review”

Not graded

1 citation whose study design could not be read from the title. Left ungraded rather than guessed at.

not graded
NCT07059546: Hypersensitivity to Adrenomedullin in Post-Traumatic Headache: A Randomized Clinical Trial graded on: NCT07059546 is recruiting and has posted no results - a registration, not a reported outcome — “NCT07059546”

Identity

Space-filling 3D model of Adrenomedullin, carbon grey, nitrogen blue, oxygen red — Built from the SMILES on this record — the atoms and bonds are exact. The shape is **one computed low-energy pose**, not a measured structure: a flexible peptide in solution has no single conformation, and where the SMILES leaves a stereocentre undefined the pose commits to one arbitrarily. The skeletal formula below claims connectivity and nothing more, which is what we actually know.

2D chemical structure of Adrenomedullin — Built from the SMILES on this record — the atoms and bonds are exact. The shape is **one computed low-energy pose**, not a measured structure: a flexible peptide in solution has no single conformation, and where the SMILES leaves a stereocentre undefined the pose commits to one arbitrarily. The skeletal formula below claims connectivity and nothing more, which is what we actually know.

Molecular weight: 6029
Molecular formula: C264H406N80O77S3
CAS number: 148498-78-6
PubChem CID: 56841671
UniProt: P35318
InChI key: ULCUCJFASIJEOE-NPECTJMMSA-N
SMILES: CC[C@H](C)[C@@H](C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)NCC(=O)N[C@H]2CSSC[C@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC2=O)CCCNC(=N)N)CC3=CC=CC=C3)[C@@H](C)O)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C)C(=O)N[C@@H](CC4=CN=CN4)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CC5=CC=C(C=C5)O)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC6=CC=CC=C6)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C)C(=O)N7CCC[C@H]7C(=O)N[C@@H](CCCNC(=N)N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N8CCC[C@H]8C(=O)N[C@@H](CCC(=O)N)C(=O)NCC(=O)N[C@@H](CC9=CC=C(C=C9)O)C(=O)N)NC(=O)CNC(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CC1=CC=CC=C1)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CCSC)NC(=O)[C@H](CO)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CCCNC(=N)N)NC(=O)[C@H](CC1=CC=C(C=C1)O)N
InChI: InChI=1S/C264H406N80O77S3/c1-19-132(10)207(335-200(366)120-294-216(377)160(78-84-189(270)355)308-234(395)171(107-142-52-30-24-31-53-142)322-237(398)176(112-196(277)362)324-238(399)175(111-195(276)361)323-230(391)166(90-101-422-18)312-245(406)182(123-346)332-229(390)163(81-87-192(273)358)309-220(381)156(60-42-95-289-261(280)281)302-215(376)151(269)103-144-66-72-148(352)73-67-144)253(414)315-159(63-45-98-292-264(286)287)226(387)331-183(124-347)246(407)320-170(106-141-50-28-23-29-51-141)219(380)295-119-199(365)301-185-126-423-424-127-186(334-256(417)210(137(15)349)336-201(367)121-296-218(379)169(105-140-48-26-22-27-49-140)319-224(385)157(307-247(185)408)61-43-96-290-262(282)283)248(409)342-212(139(17)351)258(419)338-206(131(8)9)252(413)316-164(82-88-193(274)359)227(388)303-152(56-34-38-91-265)221(382)318-168(102-129(4)5)233(394)298-135(13)214(375)317-174(110-147-117-288-128-297-147)236(397)311-165(83-89-194(275)360)232(393)340-208(133(11)20-2)254(415)328-172(109-146-70-76-150(354)77-71-146)235(396)310-162(80-86-191(272)357)228(389)321-173(108-143-54-32-25-33-55-143)242(403)341-211(138(16)350)257(418)329-180(116-204(372)373)240(401)305-154(58-36-40-93-267)222(383)326-178(114-202(368)369)239(400)304-153(57-35-39-92-266)223(384)327-179(115-203(370)371)241(402)325-177(113-197(278)363)243(404)337-205(130(6)7)251(412)299-136(14)259(420)343-99-46-64-187(343)249(410)313-158(62-44-97-291-263(284)285)225(386)330-181(122-345)244(405)306-155(59-37-41-94-268)231(392)339-209(134(12)21-3)255(416)333-184(125-348)260(421)344-100-47-65-188(344)250(411)314-161(79-85-190(271)356)217(378)293-118-198(364)300-167(213(279)374)104-145-68-74-149(353)75-69-145/h22-33,48-55,66-77,117,128-139,151-188,205-212,345-354H,19-21,34-47,56-65,78-116,118-127,265-269H2,1-18H3,(H2,270,355)(H2,271,356)(H2,272,357)(H2,273,358)(H2,274,359)(H2,275,360)(H2,276,361)(H2,277,362)(H2,278,363)(H2,279,374)(H,288,297)(H,293,378)(H,294,377)(H,295,380)(H,296,379)(H,298,394)(H,299,412)(H,300,364)(H,301,365)(H,302,376)(H,303,388)(H,304,400)(H,305,401)(H,306,405)(H,307,408)(H,308,395)(H,309,381)(H,310,396)(H,311,397)(H,312,406)(H,313,410)(H,314,411)(H,315,414)(H,316,413)(H,317,375)(H,318,382)(H,319,385)(H,320,407)(H,321,389)(H,322,398)(H,323,391)(H,324,399)(H,325,402)(H,326,383)(H,327,384)(H,328,415)(H,329,418)(H,330,386)(H,331,387)(H,332,390)(H,333,416)(H,334,417)(H,335,366)(H,336,367)(H,337,404)(H,338,419)(H,339,392)(H,340,393)(H,341,403)(H,342,409)(H,368,369)(H,370,371)(H,372,373)(H4,280,281,289)(H4,282,283,290)(H4,284,285,291)(H4,286,287,292)/t132-,133-,134-,135-,136-,137+,138+,139+,151-,152-,153-,154-,155-,156-,157-,158-,159-,160-,161-,162-,163-,164-,165-,166-,167-,168-,169-,170-,171-,172-,173-,174-,175-,176-,177-,178-,179-,180-,181-,182-,183-,184-,185-,186-,187-,188-,205-,206-,207-,208-,209-,210-,211-,212-/m0/s1

Notes unverified prose

Phase 1/2; NCT07059546

Not on file 1

1 of the 8 fields we track hold nothing on this record, and each says why. A blank field is a bug; a named absence is a finding.

amino-acid sequencenothing we hold supplies it

Each field links to every other record missing the same thing. The full ledger holds 765 gaps across 163 records.