Lanreotide vs Semax
Overview
Lanreotide is primarily a hormonal peptide, while Semax is used for cognitive enhancement.
This page compares Lanreotide and Semax across their primary use, typical dosing, reported benefits and side effects, and U.S. regulatory status. For the full monograph on either compound — mechanism of action, clinical research, and references — follow the article links.
Side-by-side comparison
| Lanreotide | Semax | |
|---|---|---|
| Category | Hormonal | Cognitive Enhancement |
| Regulatory status (US) | FDA approved | Compounding (Rx) — Apr 2026 |
| Typical dosage | 60-120 mg | 300-600 mcg |
| Frequency | every 4 weeks | daily |
| Reported benefits | suppression of excess growth hormone and IGF-1 in acromegaly, improved progression-free survival in GEP-NETs, reduction of carcinoid syndrome symptoms, inhibition of multiple GI and pancreatic hormones | Enhanced focus and memory, neuroprotection, improved learning, mood enhancement, stress resilience |
| Reported side effects | diarrhea, cholelithiasis, abdominal pain, hyperglycemia, bradycardia, injection site reactions, nausea, hypertension, headache, thyroid function decreases | Generally safe. Possible: overstimulation, sleep disturbances if taken late |
Key differences
Primary use. Lanreotide is categorised under Hormonal, while Semax falls under Cognitive Enhancement. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.
Regulatory status. Lanreotide: FDA-approved. Semax: not FDA-approved; compounding permitted with a prescription as of April 2026.
Dosing. Lanreotide is typically dosed at 60-120 mg (every 4 weeks). Semax is typically dosed at 300-600 mcg (daily).
Can you stack them?
Some protocols combine peptides, but stacking Lanreotide and Semax has not been validated for safety or efficacy in controlled trials. Combining compounds can change their effects and risks. Nothing here is medical advice — consult a qualified healthcare provider before starting or combining any protocol.
Frequently asked questions
- What is the difference between Lanreotide and Semax?
- Lanreotide is primarily a hormonal peptide, while Semax is used for cognitive enhancement. Lanreotide is FDA-approved for one or more indications, whereas Semax is not FDA-approved; compounding permitted with a prescription (as of April 2026).
- What is Lanreotide used for?
- FDA-approved long-acting somatostatin analog for acromegaly, GEP-NETs, and carcinoid syndrome.
- What is Semax used for?
- Cognitive enhancement, focus, memory.
- Can you take Lanreotide and Semax together?
- Some users combine peptides within a single protocol, but stacking Lanreotide and Semax has not been established as safe or effective in controlled trials. Neither this comparison nor PeptideSciences101 is medical advice — consult a qualified healthcare provider before combining any compounds.
- Is Lanreotide or Semax FDA-approved?
- Lanreotide is FDA-approved for one or more indications. Semax is not FDA-approved; compounding permitted with a prescription (as of April 2026).
Read the full articles
- Lanreotide — full monograph: mechanism, research, dosing & references
- Semax — full monograph: mechanism, research, dosing & references