What it does / how it works
A 28-amino-acid thymic peptide (thymalfasin). It matures T-cells and is used as an immune adjuvant at 1.6 mg twice weekly in several countries.
| Class | Thymalfasin / Zadaxin |
| Typical vial | 5 or 10 mg |
| Reconstitution | 1 mL per 1.6–2 mg working draw |
| Storage after mix | 2–8°C, use within 28 days |
Protocol
| Goal | Dose | How often | How long | Route |
| Weeks 1-12 | 1.6 mg | Twice weekly (e.g. Mon / Thu) | 8-12 weeks | SubQ |
| Longer labelled programmes | 1.6 mg | Twice weekly | Up to 6-12 months in some viral protocols | SubQ |
| Off / reassess | None | Stop or continue by indication | After 12 weeks minimum review | – |
Watch: A 10 mg vial is six 1.6 mg doses.