Receptor Profile
Receptor Actions
History & Culture
25iP-NBOMe emerged as a novel designer drug and was first documented in the scientific literature around 2014. Like other members of the NBOMe series, it represents an N-benzyl modification of an existing 2C-x compound—in this case, 2C-iP. The substance remains relatively obscure compared to more widely encountered NBOMe compounds such as 25I-NBOMe or 25C-NBOMe, with limited information available regarding its history of human use or cultural significance.
Effect Profile
CuratedStrong visuals and body load with mild auditory effects, low headspace
Strong anxiety/jitters with moderate euphoria, low stimulation
Tolerance & Pharmacokinetics
drugs.wikiTolerance Decay
Acute tolerance develops rapidly after a single strong session (typical of 5‑HT2A agonists). Substantial tolerance persists for days and decays over 1–3+ weeks; precise kinetics for 25iP‑NBOMe are not characterized. Cross‑tolerance with other psychedelics is expected but unquantified; ratios are heuristic. Data quality relies on class‑level evidence and user reports, not controlled human studies.
Cross-Tolerances
Legal Status
| Country | Status | Notes |
|---|---|---|
| United Kingdom | Class A | Controlled under the Misuse of Drugs Act 1971 through the N-benzylphenethylamine catch-all clause, which covers NBOMe compounds as a structural class. Class A substances carry the most severe penalties, with possession punishable by up to 7 years imprisonment and supply by up to life imprisonment. |
Harm Reduction
drugs.wiki• Microgram potency; never eyeball. Use a 0.001 g (or better) scale and volumetric dosing. NBOMe powders are too potent for typical scales; uneven blotter loading is commonly reported.
• Do not assume oral inactivity. For NBOMes, oral bioavailability can be unreliable rather than absent; delayed effects have led to hazardous redosing. Prefer buccal administration if using at all.
• Strong peripheral vasoconstriction and sympathomimetic toxicity have been repeatedly reported with NBOMes (tachycardia, hypertension, cold or numb extremities). Risk increases steeply ≥1 mg.
• Misrepresentation on LSD-style blotter is common; NBOMe tabs are typically bitter/metallic and can numb the mouth. Test blotters: Ehrlich/Hofmann positive suggests lysergamide; NBOMes do not react with Ehrlich and show distinct Marquis reactions.
• Avoid combinations with stimulants, MAOIs, DXM, or tramadol. These increase risks of hypertension, hyperthermia, seizures, and serotonin toxicity.
• Re-dosing strongly increases unpredictability, body-load, and adverse events; wait at least 3 h before concluding inactivity when identity is uncertain.
• Severe agitation, seizures, or hyperthermia require urgent medical care. First-line in hospital is supportive care with benzodiazepines and cooling; mention suspected NBOMe to clinicians.
• Nasal dosing increases speed of onset and adverse body-load; irritation and pronounced vasoconstriction are common. Avoid dry powder insufflation.
• Keep the environment cool, avoid prolonged physical exertion, and sip fluids with electrolytes to mitigate hyperthermia risk; do not overhydrate.
• People with cardiovascular disease, Raynaud’s phenomenon, or seizure history should avoid the NBOMe class entirely due to elevated risk.
• Distinguish from LSD: LSD blotter is typically nearly tasteless and fluoresces under UV; NBOMe blotters are often bitter/metallic and may not fluoresce. Always rely on reagents/drug checking, not taste alone.
References
Data Sources
Cited References
- Bluelight: The Small & Handy 25iP-NBOMe Thread (user reports and dosing)
- Ettrup A et al. 'Structure-Activity Relationships of NBOMe 5-HT2A Agonists' Journal of Neurochemistry 2013
- King LA 'New phenethylamines in Europe' Drug Testing and Analysis 2014
- Nichols DE 'Psychedelics' Pharmacological Reviews 2016
- PiHKAL·info – 25IP-NBOMe Chemical Structure and Properties
- Poulie CBM et al. 'Correlating the Metabolic Stability of Psychedelic 5-HT2A Agonists with Anecdotal Reports of Human Oral Bioavailability' Neurochemical Research 2014
- Rickli A et al. 'Receptor interaction profiles of novel N-2-methoxybenzyl (NBOMe) derivatives of 2,5-dimethoxy-substituted phenethylamines (2C drugs)' Neuropharmacology 2015
- TripSit: 25iP-NBOMe Summary
- Wood DM et al. 'Prevalence of use and acute toxicity associated with the use of NBOMe drugs' Clinical Toxicology 2015
- Zawilska JB, Kacela M, Adamowicz P 'NBOMes–Highly Potent and Toxic Alternatives of LSD' Frontiers in Neuroscience 2020
- Nichols DE. ‘Psychedelics’ Pharmacol Rev 2016 (general NBOMe toxicity)
Drugs.wiki References
- TripSit Wiki – NBOMes (dosing, oral activity nuance, harm reduction)
- Bluelight – Important NBOMe warning: unknown blotters sold as LSD (taste, testing, oral activity caveat)
- Erowid – NBOMe Series: Spotlight on NBOMes (vasoconstriction, misrepresentation on blotter)
- EUDA/EMCDDA – 25I‑NBOMe Risk Assessment (toxicity profile; hyperthermia, seizures; severe agitation)
- Saferparty.ch – 25x‑NBOMe sold as LSD (drug checking warnings; bitter taste; re‑dose hazards; 3‑hour wait)
- PubMed – Review of NBOMe acute toxicity (tachycardia, hypertension, seizures, hyperthermia)