Imunofan_Dosage, benefits & legal status
Also known as Immunofan, Imunofan, Immunofane
A Russian rework of thymopentin, with one amino acid added at each end.
Common vial size is what vendors typically sell, not a recommendation. Enter your own vial in the calculator.
What is Imunofan?
Plain language first. The technical label stays, but it never stands alone.Overview
It is thymopentin with a bit of armour, aimed at the same job of nudging the immune system.
Imunofan is a six amino acid peptide developed in Russia as a modified version of thymopentin, the working piece of a thymus hormone. An arginine was added at each end to make it last longer.
What it's used for
An injection used in Russia for a weakened immune system and long-running infections.
How does Imunofan work?
What it does in the body, and where.Imunofan starts from thymopentin and changes the ends. The claim attached to it is about timing, and it is worth reading with care.
- 01It is thymopentin with an arginine added at each endThe core is the same five amino acid stretch from the thymus hormone thymopoietin.
- 02The extra ends are meant to slow it being broken downThis is the same idea behind the acetylated and amidated versions of other peptides in this library.
- 03The three-stage claim is a description, not a measurementRussian sources describe an effect in three phases over hours, then days, then weeks. That framing comes from the developers and has not been tested independently.
- 04The family tree is worth knowingThymopoietin gives thymopentin, and thymopentin gives Imunofan. Thymalin and Thymogen come from the same thymus research and are different products again.
Where this compound is thought to act.
What else is it used for?
Each use below carries its own evidence level. Approved means regulators have cleared it for that purpose. Investigational means it is in trials. Early research means it is being studied and is not established.
- Supporting a weakened immune system, its registered use in RussiaClinical use
- Long-running viral infections including hepatitis B and CClinical use
- An add-on during cancer treatment, to help with the effects of chemotherapyResearch only
The published record
Papers and trials about Imunofan
25 papers tagged human · 22 not reviews or lab · 4 clinical trial publications
Furthest stage reached: Approved outside the US, Russia
Counted from Europe PMC indexing, not read by a person; a human tag can land on reviews, commentary or lab papers; clinical trial publications is the narrower count.
At a glance
Four things to know about Imunofan
How much, and do you cycle it?
The range, and whether you take breaks.50 mcg per dose, every other day, in courses. Given every other day in courses of about 10 doses Clinical use
The course pattern comes from Russian prescribing rather than a trial comparing schedules.
Not establishedCommunity practice
A Russian registered product with no published pharmacokinetics.
Not yet traced to a primary source.
You can compare this against the whole library to see where it sits.
How do I dose and price it?
Enter your vial and your dose. Pick a mix. We show the draw and the cost.The vial holds a fixed amount of drug. Adding more water does not make more drug, it just spreads it thinner, so you draw a bigger number on the syringe for the same dose.
Choose your mix
Measuring the water1 mL = one full 100-unit syringe.
How do you store it?
Before mixing, and after.Dry powder in the freezer or fridge. Once mixed, fridge, and use within about a month.
Unmixed lyophilized Imunofan keeps for a long time cold. Once you add water the clock starts: most reconstituted vials hold up for roughly 28 to 30 days at fridge temperature. Keep it out of light, and do not freeze it after mixing.
What are the side effects and cautions?
Known cautions and warnings for this compound.The dose here is in micrograms while thymopentin is dosed in milligrams, a difference of a thousand times for two closely related peptides. Read your label carefully, and do not carry a number across from one to the other.
Solubility, computed: 100% charged residues, 17% hydrophobic. Water usually sufficient.
A first-pass rule from peptide manufacturers' guidance. It does not account for disulfide bridges, salt form or how the powder was dried, and it predicts what should be easy rather than what will happen in your vial.
Who should avoid it
- Pregnancy, particularly with a history of pre-eclampsia
- Known allergy to it
- Taking medicine that deliberately suppresses the immune system
Stop and get help
- Signs of an allergic reaction such as face or throat swelling, hives, or trouble breathing
- A spreading rash
- Fever after injecting
Common effects
- Injection-site reactions
- Mild flu-like feelings
- Beyond that, little is documented outside Russian sources
Where this page says nothing is established, that means nobody has studied it, not that a compound is safe.
Is Imunofan approved?
And where the numbers on this page come from.Not in the United States. Imunofan has no FDA approval and is sold there labeled for laboratory research only, so there is no legal route to buy it for human use. It is approved in Russia.
- Approval statusResearch only
- RouteUnder the skin or into muscle
- Checked22 September 2026
- Approved outside the USRussia: Registered in Russia as a prescription solution for injection at 45 micrograms per mL, registration LP-(000957)-(RG-RU), alongside suppository and nasal spray forms. Not approved in the US.This does not change the United States position above.
- DoseFrom product labeling and clinical guidelines.
- Vial sizeFrom what vendors typically list; not a recommendation.
- SourcesNone traced yet.
What has happened recently
Registered in Russia since the 1990s for immune deficiency, long-running infections including hepatitis B and C, and as an add-on in cancer care. It has never been approved in the US or Europe and is not permitted in pharmacy compounding.
You can compare this against the whole library, or read how to check a seller.
What else is like Imunofan?
Others in Immune support, side by side.If you're weighing Imunofan, it's worth reading Mifamurtide (Mepact), P140 (forigerimod), and Pexiganan in the same class.
A Russian rework of thymopentin, with one amino acid added at each end.
- Dose
- 50 mcg per dose
- How often
- Every other day, in courses
A synthetic bacterial cell-wall fragment that activates macrophages, approved in Europe for osteosarcoma but not in the US.
- Dose
- 2 mg/m2 per infusion (EU label)
- How often
- Twice weekly for 12 weeks, then weekly for 24 weeks
An experimental lupus peptide whose pivotal trial missed its endpoint in 2018.
- Dose
- 200 mcg every 4 weeks (every trial to date)
- How often
- Every 4 weeks
A magainin-based antimicrobial cream, tested twice for diabetic foot infections and never approved.
- Dose
- 0.8% cream twice daily (last trials)
- How often
- Twice daily for 14 days (trials)
Guides for this compound
- How to Reconstitute a Peptide
Mix peptide powder with bacteriostatic water, step by step.
- How to Read an Insulin Syringe
Read the units, convert to millilitres, and draw the exact dose.
- mcg vs mg: The Peptide Dosing Mistake to Avoid
Your vial says mg and your protocol says mcg. Here is the conversion and how to check it.
- Why Does My Peptide Injection Itch or Welt
Injection-site irritation, a histamine reaction, or a true allergy, and how to tell them apart.
- How to Read a Peptide COA
What the purity number does and does not tell you, and how to spot an edited report.
Sources
No primary source has been traced for this compound yet. Treat everything on this page as unverified until one is. How we grade evidence
Beyond these, 47 records are indexed. Browse the records