1,4-Butanediol/[email protected]

1,4-Butanediol (1,4-B, butylene glycol, or BD) is a thick, colourless liquid which is nearly odorless with a distinct bitter taste. 1,4-Butanediol is used industrially as a solvent and in the manufacture of some types of plastics, elastic fibers and polyurethanes. In organic chemistry, 1,4-butanediol is used for the synthesis of γ-butyrolactone (GBL).

In humans, it acts as a depressant and a prodrug for GHB where 1ml is equivalent to 1g of GHB. It is used as a recreational intoxicant with effects similar to alcohol.
1,4-Butanediol, as well as GBL, will dissolve most types of plastic over time.For this reason, it is recommended to only transport and store the drug using a glass container, standard gelatin capsules (not vegetarian), or high-density polyethylene plastic (also known as #2 recycled plastic). To check the type of plastic used on a bottle, one can look at the bottom for a number in the triangle shaped recycling label.

Physical effects

Stimulation and Sedation - At lower doses, 1,4-butanediol is physically stimulating, encouraging movement and wakefulness. At higher doses, however, it becomes physically sedating, encouraging sleep and lethargy.
Euphoria
Nausea
Motor control loss
Dizziness
Dehydration
Respiratory depression - Many reportedly experience an abnormal pattern of breathing characterized by progressively deeper and sometimes faster breathing followed by a gradual decrease that results in a temporary stop in breathing called an apnea.