acetylpromazine meaning

[Medicine]
A phenothiazine that is used in the treatment of PSYCHOSES.

Examples

1. Jockey Club officials last month confirmed that two horses, Lively Knight and Avanti Express, tested positive for a drug believed to be acetylpromazine, a tranquilizer which has sedative effect.
2. Ashgar finished third at Plumpton on March 30, and tested positive to the banned substance acetylpromazine ( ACP ), the most widely and regularly used sedative for horses in England.