Thymalin vs Vitamin D3 Injection
A side-by-side research comparison of Thymalin and Vitamin D3 Injection across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | Thymalin | Vitamin D3 Injection |
|---|---|---|
| Full name | Thymalin (Thymus Extract Peptide) | Cholecalciferol (Vitamin D3) Injectable |
| Category | Immune Support | Immune Support |
| Status | Research compound | Compounded supplement |
| Mechanism | Contains bioactive thymic peptides that regulate T-lymphocyte differentiation, restore T-helper/T-suppressor ratios, and enhance phagocyte activity and interferon production. | Converts to 25-hydroxyvitamin D then to active 1,25-dihydroxyvitamin D. Modulates over 200 genes including those for immune function, calcium absorption, bone remodeling, and hormone production. |
| Molecular weight | ~1000-5000 Da (complex mixture) | 384.64 Da |
| Half-life | ~4-6 hours | ~15 days (storage form) |
| Bioavailability | ~80% intramuscular | ~100% IM |
| Typical dose | 5-10 mg | 50,000-100,000 IU |
| Frequency | Daily for 5-10 days | Weekly to monthly |
| Route | Intramuscular injection | Intramuscular injection |
Thymalin reported benefits
- Immune reconstitution
- T-cell ratio normalization
- Interferon production
- Anti-tumor immunity support
Vitamin D3 Injection reported benefits
- Rapid deficiency correction
- Immune system optimization
- Bone health
- Hormone support
- Mood improvement
- Reduced inflammation
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Research and educational reference only. Not medical advice.