Phencyclidine, commonly known as PCP, is a potent dissociative drug that falls under the category of hallucinogens. It is symbolized by "🔬💊🚫🧠" which represents its scientific nature (🔬), its use as a pharmaceutical substance (💊), the need to avoid it due to its potential dangers (🚫), and its impact on altering brain function (🧠).