What are the side effects of Semax?
The most commonly reported Semax side effects are generally well tolerated, mild headache rarely. Most are mild and tend to be dose dependent. It is generally avoided with pregnancy / nursing, no data. Human clinical evidence for Semax is limited, so this reflects reported and observed effects, not a complete safety profile.
Reported Semax side effects
- Generally well tolerated
- Mild headache rarely
Who should avoid it
- Pregnancy / nursing, no data
References
- Effectiveness of semax in acute period of hemispheric ischemic stroke (a clinical and electrophysiological study) — Gusev EI, Skvortsova VI, Miasoedov NF, et al. Zh Nevrol Psikhiatr Im S S Korsakova, 1997
- Semax and Pro-Gly-Pro Activate the Transcription of Neurotrophins and Their Receptor Genes after Cerebral Ischemia — Dmitrieva VG, Povarova OV, Skvortsova VI, Limborska SA, Myasoedov NF, Dergunova LV. Cellular and Molecular Neurobiology, 2009
Pepdex is an editorial reference, not medical advice. Peptides vary in legal and approval status by country, many are research compounds without full human safety data. Talk to a qualified clinician before starting anything.
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Last updated 2026-06-06.