Standard Dosage Range
Research dosing range: 1–5 mg per dose (injection); Variable (oral with zinc)
Educational reference only
Dosage by Use Case
Immune Support (General)
4-8 weeks
Subcutaneous injection preferred. Consider concurrent zinc supplementation to maximize thymulin activity.
Age-Related Immune Decline
4-12 weeks
Subcutaneous or intramuscular injection. Cycle with periods off to assess immune response. Monitor white blood cell counts.
Adjunctive Cancer Therapy (Immune Modulation)
8-12 weeks
Use under medical supervision as part of a comprehensive cancer treatment plan. Monitor immune cell populations.
Zinc Deficiency-Related Immune Dysfunction
4-8 weeks
Concurrent zinc supplementation is crucial. Monitor zinc levels and immune function. Oral route could be experimented with but bioavailability is not guaranteed.
Chronic Inflammatory Conditions (Experimental)
4-6 weeks
Experimental use only. Not yet validated in human trials. Closely monitor inflammatory markers.
Timing & Frequency
Injections are typically administered in the morning. For oral administration, taking thymulin with zinc supplements on an empty stomach may improve absorption, though human data is limited. The half-life is short, so single daily dosing may suffice.
Cycle Guidance
Due to limited long-term human safety data, cycling is recommended. A common protocol is 8-12 weeks on followed by a 4-8 week break. Monitor immune function and watch for any adverse effects during and after the cycle.
Reconstitution Reference
Quick reference for reconstituting Thymulin. For custom vial sizes and concentrations, use the Reconstitution Calculator.
| Common Vial Size | Typically 1 mg per vial |
| BAC Water Volume | 1 mL bacteriostatic water for 1 mg/mL concentration |
| Concentration & Draw | At 1 mg/mL: 100 mcg = 0.1 mL (10 units on a 100-unit insulin syringe) |
| Storage | Refrigerate at 2–8°C after reconstitution. Keep lyophilized powder at room temperature or refrigerated. |
| Stability | Reconstituted solution stable up to 30 days refrigerated. Lyophilized powder stable 12-24 months per manufacturer specifications. |
Frequently Asked Questions
What is the best way to administer thymulin?
How long does thymulin take to work?
What are the potential side effects of thymulin?
Can thymulin be taken with zinc supplements?
Last updated: 2026-02-19