抑制剤 よくせいざい Meanings Noun inhibitor; depressant; suppressant; retardant Kanji 抑 suppress. Read as ヨク. 制 control. Read as セイ. 剤 agent. Read as ザイ. Words containing 抑制剤 免疫抑制剤 (めんえきよくせいざい) immunosuppressant (drug) Jinuma: Japanese Dictionary · Word lists