White, round, flat, scored tablet marked with “ RU 20” on a person side, about 9 mm in diameter. The score line is only to aid breaking for relieve of swallowing instead of to divide into equivalent doses.整體而言，派醋甲酯與同為中樞神經興奮劑的安非他命結構上相似，但派醋甲酯和安非他命不同，不容易成