Although 25I-NBOMe was discovered in 2003, it did not emerge as a common recreational drug until 2010, when it was first sold by vendors specializing in the supply of designer drugs. In a slang context, the name of the compound is often shortened to “25I” or is simply called “N-Bomb”. According to a 2014 survey, 25I-NBOMe was the most frequently used of the NBOMe series. By 2013, case reports of 25I-NBOMe intoxication, with and without analytic confirmation of the drug in the body, were becoming increasingly common in the medical literature.
25I-NBOMe is widely rumored to be orally inactive; however, apparent overdoses have occurred via oral administration. Common routes of administration include sublingual, buccal, and intranasal. For sublingual and buccal administration, 25I-NBOMe is often applied to sheets of blotter paper of which small portions (tabs) are held in the mouth to allow absorption through the oral mucosa. There are reports of intravenous injection of 25I-NBOMe solution and smoking the drug in powdered form.
Due to its potency and much lower cost than so-called classical or traditional psychedelics, 25I-NBOMe blotters are sometimes misrepresented as, or mistaken for, LSD blotters. Even small quantities of 25I-NBOMe can produce a large number of blotters. Vendors would import 25I-NBOMe in bulk (E.G 1 kilogram containers) and resell individual doses for a considerable profit.
25I-NBOMe effects usually last 6–10 hours if taken sublingually, orally (or on top of your tongue), or buccally (between your gum and your cheek). When it is ingested, effects usually last 4–6 hours. However, effects can last significantly longer depending on dosage; durations longer than 12 hours have been reported.
25I-NBOMe can also be vaporized and inhaled, this may cause significantly quicker effects and shorter duration as is expected from that route of administration. However, this route of administration is very dangerous, unless using precise liquid measurement, due to the difficulties of measuring and handling substances active in the microgram range.
25I-NBOMe has similar effects to LSD, though users report more negative effects while under the influence and more risk of harm following use as compared to the classical psychedelics.
Case reports of seven British males who presented to an emergency room following analytically confirmed 25I-NBOMe intoxication suggest the following potential adverse effects: “tachycardia (n = 7), hypertension (4), agitation (6), aggression, visual and auditory hallucinations (6), seizures (3), hyperpyrexia (3), clonus (2), elevated white cell count (2), elevated creatine kinase (7), metabolic acidosis (3), and acute kidney injury