Immune Protocol
Thymulin (FTS)Complete Dosing & Administration Guide
Zinc-dependent thymic hormone for immune restoration and T cell maturation
Dose Range
100-500mcg
Frequency
Once daily
Route
Subcutaneous injection
Cycle Length
4-6 weeks
Dosing
How much
do I take?
Timing
Best time to take
Evening, preferably 6-8 PM to align with natural thymic hormone rhythm
With food?
Zinc supplementation should be taken with food if possible to improve absorption and reduce stomach irritation
If stacking
Separate thymulin injection from zinc supplement by at least 2 hours if supplementing with separate zinc dose. Can combine in reconstitution if using zinc-supplemented formulation.
Adjusting Your Dose
Increase if
- +No adverse effects after 2 weeks at current dose
- +Minimal immune markers improvement (elevated CD4+/CD8+ ratio still low)
- +Thymulin antibody response not yet apparent
- +Tolerance and zinc status confirmed adequate
Decrease if
- -Persistent local injection site reactions
- -Systemic symptoms (fever, malaise) beyond first week
- -Signs of immune overactivation (excessive inflammation)
- -Severe headaches or sleep disruption
Signs of right dose
- ✓Improved CD4+ and CD8+ T cell counts
- ✓Reduced pro-inflammatory cytokine levels (IL-6, TNF-α)
- ✓Increased thymic output markers
- ✓Improved immune responsiveness to vaccines
- ✓Reduced frequency of infections
Dosing Calculator
Calculate Your Exact Dose
Step 1: Peptide Weight
Find the weight printed on your peptide vial label
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The peptide weight is printed on the label
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The weight is on the label
Administration
How do I
use it?
Reconstitution
What you need
- •Sterile bacteriostatic water (0.9% sodium chloride) or sterile saline
- •Insulin syringe (29-31 gauge, 0.5-1 mL)
- •Alcohol prep pads
- •Sterile gauze
- •Sharps container
- •Sealed vial with lyophilized thymulin
Injection
Route
Subcutaneous injection
Best sites
- •Abdomen (avoid 2 inches around navel)
- •Upper arm/deltoid region (outer surface)
- •Thigh (outer front or outer side)
- •Lower back above buttocks
Technique
- 1.Clean injection site with alcohol prep pad, let dry 30 seconds
- 2.Pinch skin fold to create mound
- 3.Insert needle at 45-90 degree angle
- 4.Push plunger slowly to inject peptide
- 5.Withdraw needle and apply gentle pressure with gauze
- 6.Rotate injection sites daily to avoid lipodystrophy
- 7.Do not reuse needles
Storage
Signs of degradation
Sample Daily Schedule
Safety
Is it
safe?
Safety Profile
Thymulin is a naturally occurring thymic hormone with favorable safety profile in research. No reported serious adverse events in animal models even at high doses. Limited human safety data but observed studies suggest good tolerability. Requires concurrent zinc supplementation for biological activity and additional safety assurance. Most concerns relate to immune overactivation in susceptible individuals, not direct peptide toxicity.
Safety data derives primarily from animal models and in vitro human studies. Direct human clinical trials are limited. Long-term safety profile in healthy volunteers not extensively documented. Use should be considered research-level, not FDA-approved therapeutic.
Common Side Effects
Experienced by some users
Local injection site reactions
Mild redness, swelling, or itching at injection site lasting 1-2 hours post-injection
Management: Rotate injection sites daily, apply ice if swelling persists, use smaller gauge needle (31G recommended)
Mild fatigue or lethargy
Temporary fatigue during first 1-2 weeks as immune system begins mobilization; may feel 'immune activation response'
Management: Ensure adequate sleep (8+ hours), stay hydrated, continue standard activity unless severe, usually resolves by week 2-3
Transient headache
Mild to moderate headache, usually occurring within hours of injection, lasting 2-8 hours
Management: Take acetaminophen or ibuprofen if needed, ensure hydration, rest in quiet environment, may decrease with subsequent doses
Less Common
- •Mild fever or chills
- •Sleep disturbance or vivid dreams
- •Appetite changes
- •Transient lymph node swelling
These typically resolve with continued use or dose adjustment.
Stop and Seek Help If
- ×Severe allergic reactions or anaphylaxis
- ×Persistent fever above 101.5°F lasting more than 24 hours
- ×Severe joint or muscle pain unrelated to injection site
- ×Signs of autoimmune activation (rashes, persistent inflammation)
- ×Severe headaches or neurological symptoms
- ×Uncontrolled immune activation with systemic symptoms
- ×Pregnant status or planning pregnancy
- ×Development of new autoimmune disease symptoms
This information is for research purposes only. Stopping thymulin or any peptide should be discussed with a qualified healthcare provider. Do not discontinue abruptly without medical guidance. If experiencing emergency symptoms, seek immediate medical attention.
Interactions
With other peptides
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With medications
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With supplements
- ✓
- ✓
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Want the Full Picture?
View the complete Thymulin (FTS) research profile including mechanism of action, clinical studies, effectiveness timeline, and FAQ.
View Full Thymulin (FTS) Profile