“使服毒品”常见的英文表达可以是 “force someone to take drugs” 或 “administer drugs to someone against their will” 。
force someone to take drugs：强调以强迫手段让他人摄入毒品，突出“使（force）”这一动作的强制性。例如：The criminals forced the young man to take drugs to control him.（犯罪分子强迫那个年轻人服毒品以控制他。）
administer drugs to someone against their will： “administer”有“给予（药物等）”的意思，“against one's will”表示“违背某人的意愿”，整体表达违背他人意愿而让其摄入毒品。例如：It's a serious crime to administer drugs to someone against their will.（违背他人意愿使其服毒品是严重的犯罪行为 。）