AICAR (acadesine)

AICA riboside, GP-1-110

SARMs & research compoundsNot approved for humansWADA S4 · prohibitedEvidence: limited human data

An AMPK activator and natural cell metabolite, not a peptide or SARM. As acadesine it was tested in heart surgery and leukaemia but never approved.

What it gives

What people use it for and what the sources report. Strength is a general category from the literature: mild, clear or strong.

Purpose

Taken for endurance and fat loss as an 'exercise pill', based on mouse studies. It is sold online as a 'research' powder and has no approved medical use.

What people seek and what studies show

In sedentary mice it raised running endurance by 44% and switched on muscle metabolic genes. In healthy people, infusions raised muscle glucose uptake in one study but not in another, and raised heart rate while lowering blood pressure. Performance in humans has never been tested. In heart-surgery patients it did not reduce deaths, strokes or heart failure.

Effects

EnduranceFat loss

Evidence: Limited human data — some human studies, small or short

Sought effects by goal (as reported)

Cutting
Sought for: fat loss
Recomposition
Sought for: fat loss
Endurance
Sought for: endurance, fat loss

Possible side effects

Possible does not mean certain: whether they appear depends on dose, duration, individual response and monitoring. Below — what to watch for and how to notice it early.

5 possible side effects

level · how often it is reported
Elevated
Black-market quality risk (fakes, contamination)
AICAR bought from internet suppliers by a doping lab was genuine but held considerably less than the label stated.
How to notice: Unexpected effects, pain or infection, a stronger or weaker effect than expected.
common
Moderate
Unknown long-term safety (little human data)
Only short infusions in patients and volunteers have been studied; repeated use in healthy people never has.
How to notice: Nothing to notice — the risk is what is not yet known.
possible
Moderate
Kidney strain
In leukaemia trials at very high doses, raised uric acid was common; kidney impairment and low blood pressure during infusion also occurred.
How to notice: Usually silent; foamy urine or swelling in later stages.
rare
Low
Fast heart rate / arrhythmia
In healthy volunteers an infusion raised heart rate (by about 12 vs 3 beats a minute on placebo) and lowered blood pressure by widening vessels.
How to notice: Racing heart, skipped beats, shaky hands.
possible
Low
Injection pain, infection, oil cough
Studied only as an intravenous infusion; injecting an unsterile gray-market powder risks infection.
How to notice: Soreness, lumps; a short coughing fit right after an injection.
possible

What the levels mean

Lowbackground — just be aware
Moderatewatch for signs
Elevatedneeds regular control
Highcritical — can be life-threatening or permanent

Level: general category from the literature, not your personal risk

How often

common
reported often
possible
reported in some people
rare
reported occasionally

How to lower the risks

For 2 of 5 possible side effects there are specific ways to lower the chance: everyday measures, supplements and options a doctor may consider. For the rest — general advice. No measure removes a risk completely.

ElevatedBlack-market quality risk (fakes, contamination)

Products obtained without a prescription are often fake, mislabeled or non-sterile, and there is no way to check at home. For legal supplements, look for third-party testing (Informed Sport, NSF).

ModerateUnknown long-term safety (little human data)

What is unknown cannot be lowered, only avoided; tell your doctor what you have taken.

ModerateKidney strain

Drink enough water, control blood pressure, avoid regular painkillers (NSAIDs).

Measure
Fluid & electrolyte managementRegular blood testsWorking with a doctor
How each option helps (3)
  • Fluid & electrolyte management — Good hydration eases kidney stress from heavy training and heat; dehydration plus NSAIDs is a classic cause of acute kidney injury.
  • Regular blood tests — Creatinine reads high in muscular people and with creatine; cystatin C and a urine test give a truer picture of the kidneys.
  • Working with a doctor — Investigates protein in the urine or falling kidney function and can start treatment that slows kidney damage.

Low-level side effects

Heart rhythm
Limit caffeine and other stimulants; with palpitations, stop the suspected drug and get an ECG. Don't add potassium on your own (supplements, Asparkam/Panangin, salt substitutes): it is dangerous with spironolactone, ARBs/ACE inhibitors or kidney problems; a blood test shows the level.
Measure
Heart screening: ECG and echocardiogram
How each option helps (1)
  • Heart screening: ECG and echocardiogram — An ECG reveals arrhythmias, conduction problems and QT changes — important with stimulants, clenbuterol, thyroid hormone or diuretics.
Injection site
Sterile technique, never share needles, vials or pens; see a doctor for a hot, swollen site. If equipment was ever shared, test for HIV and hepatitis B/C and ask about hepatitis B vaccination.

Check-ups and blood tests

Which tests and check-ups to do and when. This is a guide — agree the exact schedule with your doctor.

Baseline tests
your own starting values — every later result is compared with them
Kidney panel (creatinine, eGFR, cystatin C)kidneys
Home blood-pressure logkidneys
Urinalysiskidneys
While taking
about 4–6 weeks in, then every 6–8 weeks — agree the exact schedule with your doctor
Kidney panel (creatinine, eGFR, cystatin C)kidneys
Home blood-pressure logkidneys
Urinalysiskidneys
After stopping
4–8 weeks after stopping (later after long-acting injections), then until values return to baseline
Kidney panel (creatinine, eGFR, cystatin C)kidneys

Which doctors can help

Sports physiciancoordinates everything
Nephrologistkidneys

Get medical help at once if

  • Much less urine than usual, cola-colored urine, new swelling, flank pain — see a doctor now.

In an emergency, call your local emergency number.

For women

Non-hormonal, so no virilization is expected; there are no data in pregnancy or breastfeeding.

Myth & fact

Myth

“AICAR occurs naturally in the body, so it is harmless.”

Fact

The body makes it in tiny amounts. Given as a drug in trials it raised heart rate and uric acid, lowered blood pressure and sometimes impaired the kidneys.

Combinations

No specific combination notes for this substance yet. The stack check still adds up side effects that several substances share.

Check combinations →

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