A kind of medication tank includes a tank body and a capping. Tank body defines one with an opening and can contain the accommodating space of a liquid medicine. Capping lid sets what tank body to close the opening of accommodating space, and capping includes a Gai Benti and a baffler. Lid body defining goes out an inner space, a through-hole and a guide groove. Inner space can contain a medicinal powder. Guide groove is connected between what inner space and through-hole, the accommodating space of through-hole connection what tank body, baffler can move between a detent position and an open position along guide groove, what detent position, baffler separates inner space and through-hole, and the exposed what lid ontology of a grip end of baffler, what open position, inner space is connected to what accommodating space via guide groove and through-hole, and medicinal powder is enable to fall into liquid medicine.一種服藥罐，包含一罐體及一封蓋。罐體界定出一具有一開口且可盛裝一藥水之容置空間。封蓋蓋設於罐體以封閉容置空間的開口，封蓋包括一蓋本體及一阻隔板。蓋本體界定出一內部空間、一通孔，及一導槽。內部空間可盛裝一藥粉。導槽連通於內部空間與通孔之間，通孔連通於罐體的容置空間，阻隔板能沿導槽在一封閉位置及一開啟位置之間移動，於封閉位置，阻隔板分隔內部空間及通孔，且阻隔板的一握持端部外露於蓋本體，於開啟位置，內部空間經由導槽及通孔連通於容置空間，使藥粉能落入藥水。
