👉 The term "antidiphtheritic" is used to describe a substance that acts as an antifungal agent. It is primarily used in the treatment of fungal infections such as those caused by Candida albicans, which can cause skin and respiratory issues. Antidiphtheric substances are typically derived from natural sources like mushrooms or plants. They are often used for their ability to inhibit the growth of fungi and prevent the development of secondary infections.