Picamilon (also known as N-nicotinoyl-GABA, pycamilon, and pikamilon) is a drug formed by a synthetic combination of niacin and γ-aminobutyric acid (GABA).

The rights to the drug belong to the Russian pharmaceutical company NPK ECHO ("НПК ЭХО").

It is not approved for sale in the United States and has been deemed an adulterating agent in dietary supplements,[6] with five American companies required to remove their picamilon products from the market in November 2015.

[8] A Russian study from 1991 showed that picamilon permeated the blood–brain barrier in cats and increased cerebral blood flow.

[2] As discussed previously, the drug undergoes hydrolysis to GABA and nicotinic acid.