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Limited human dataFDA 503A Category 3

ARA-290 side effects

Also known as: Cibinetide · ARA 290 · ARA290 · pHBSP · Pyroglutamate helix B surface peptide

Updated 33 sources

5 side effects reported for ARA-290: 0 from studies and labels, 5 from users and guides. 1 come with the ways people manage them.

Side effects users and guides report

What people post and what dosing guides list. These are reports, not measured rates.

From users and guides5

Community reports, competitor and vendor guides, media.

  • Injection-site redness or discomfort

    The most commonly reported effect; mild and short-lived

    How people manage it

    • Rotate sites and inject slowly, as reports commonly describe.
  • Headache

    Occasional, at low frequency; one guide says at rates similar to placebo

  • Mild fatigue in the first days

    Rare

  • Mild flu-like feeling

    Rare and very mild, more common in the first days (one guide)

  • Injection-site irritation (app logs)

    Logged 4 times across 6 app reports

Who should avoid it, and what not to combine

  • Pregnancy or breastfeedingCondition

    No safety data; avoided in the trials.

  • Active cancerCondition

    Tissue-repair signalling from an EPO-derived peptide could in theory affect tumors; not studied.

  • Blood disorders such as myeloproliferative conditionsCondition

    A conservative precaution given its EPO lineage.

  • Serious active infectionCondition

    Blunting inflammation during sepsis or serious infection may be counterproductive (one guide).

How much is known

Limited human data

Small human Phase 2 trials, most run or sponsored by the developer: sarcoidosis small-fiber neuropathy (IV pilot n=22; placebo-controlled subQ trial; dose-ranging Phase 2b n=64 where only 4 mg hit the primary endpoint), type 2 diabetes with neuropathy (4 mg, 28 days), diabetic macular edema (n=9, no visual benefit) and a healthy-volunteer mood probe (n=36). No Phase 3, no long-term safety data.

ARA-290 side effects questions

What are the side effects of ARA-290?

Guides summarising the trials report mostly mild, short-lived injection-site reactions and occasional headache. The trials themselves raised no safety concerns, but they were small and lasted 4 to 12 weeks, so long-term safety is unknown.

Sources for these side effects

7 sources, each checked by date. Record updated Oct 24, 2026. Numbers are restated in our own words and labelled by where they came from.

Competitor guide4

  1. ARA-290 peptide protocol guidepeptidedosingprotocols.com · checked Oct 24, 2026
  2. ARA-290 complete research guidepeptidedeck.com · checked Oct 24, 2026
  3. ARA-290 compound pagebodyhackguide.co · checked Oct 24, 2026
  4. ARA-290 (cibinetide) reportoutliyr.com · checked Oct 24, 2026

Community-reported1

  1. ARA-290 compound page, app community datapeptiq.io, via a competitor guide · checked Oct 24, 2026

Back to the full ARA-290 page for dosing, the vial chart and storage.