Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Head-to-head comparison of Lemairamin and Sunifiram — mechanism, side effects, legal status, and pricing.
Lemairamin is a non-peptide small-molecule cinnamamide alkaloid (N-phenethyl cinnamide) natural product, not approved for human use in any jurisdiction. All available data are preclinical (rodent, zebrafish, C. elegans, in vitro, and computational). It is sold exclusively as an unregulated 'research chemical' explicitly labeled 'not for human consumption'; quality, purity, and identity are not independently verified by any regulatory body. No human clinical trials, pharmacokinetic studies, or safety data exist.
Sunifiram (DM-235) is a synthetic non-peptide piperazine derivative marketed online as an 'ampakine-like' cognitive enhancer. Despite common branding, primary research shows it acts indirectly via the glycine-binding site of the NMDA receptor to potentiate AMPA-receptor-mediated transmission, not as a direct AMPA agonist. No human clinical trials or toxicology studies have been conducted, and sunifiram is not approved for any human or veterinary use worldwide. It is sold on the gray market without regulatory vetting.
Lemairamin
Sunifiram
Category
Legal Status
Mechanism
Side Effects
COA-verified vendors · trust score ≥70 required · single-vial price — bulk/bundle deals may be lower
Lemairamin
No pricing data yet.
Check Lemairamin prices →Sunifiram
COA corpus from Disclosed Labs — independently tested batches only.
Lemairamin
2
COAs
99.8%
Avg purity
2
Labs
Sunifiram
1
COAs
99.5%
Avg purity
1
Labs
No human data exist. No completed or registered human clinical trials were located on ClinicalTrials.gov, and no PubMed-indexed human pharmacokinetic, safety, or efficacy studies exist. All available data are preclinical: In transgenic Alzheimer's mice, gx-50 disassembled Aβ oligomers, decreased cortical Aβ accumulation, inhibited Aβ-induced neuronal apoptosis and calcium toxicity, improved Morris water maze performance, and was reported to cross the blood-brain barrier (Tang et al. 2013). In mouse and rat pain models (formalin tonic, neuropathic, bone-cancer pain), subcutaneous and intrathecal lemairamin dose-dependently reduced pain hypersensitivity/mechanical allodynia without evident tolerance, linked to spinal α7 nAChR activation and downstream IL-10/β-endorphin release (Wang et al. 2020). Murine microglial cell cultures showed gx-50 activation of α7 nAChR engaged JAK2/STAT3 and PI3K/AKT signaling to suppress pro-inflammatory cytokine secretion (Shi et al. 2016). Zebrafish DSS-induced colitis models showed lemairamin attenuated intestinal inflammation via Akt signaling (2024). C. elegans studies reported WGX-50 promoted markers of healthy ageing (daf-16/skn-1 longevity genes, 2025).
Key references
No human data exist. In olfactory-bulbectomized mice given oral sunifiram 0.01–1.0 mg/kg daily for 7–12 days, spatial reference memory (Y-maze) and short-term recognition memory (novel object recognition) improved, and impaired hippocampal CA1 long-term potentiation was restored via NMDAR-glycine-site-dependent CaMKII/PKC signaling (blocked by gavestinel). In mouse hippocampal slices, sunifiram (1–1000 nM, peaking at 10 nM with a bell-shaped dose-response) potentiated CA1 LTP via the glycine-site/PKCα/CaMKII pathway. In passive-avoidance models, sunifiram reversed amnesia in mice and rats at doses roughly four orders of magnitude lower than piracetam. No toxicology studies or human clinical trials have been conducted as of 2016.
Lemairamin and Sunifiram are both in the Cognitive category and may have overlapping mechanisms. Researchers should review both profiles carefully, understand the mechanisms of action, and monitor the relevant biomarkers when combining compounds in the same class. As always, consult a licensed healthcare provider before making any decisions about combining research compounds.
This platform provides informational tools only, not medical advice. This comparison is for educational purposes only. Consult a licensed provider.
Contraindications
Lab Testing
Key references
Disclosed Labs