Hello, these two drugs are commonly used to treat psoriasis and can be taken at the same time. Aminopeptidase, the main component of Yin Di Tablet, is an active substance extracted from animal organs, which contains a variety of amino acids, peptides and trace elements, and is helpful to regulate the immune function and nutritional metabolism of the body. Aviva is suitable for the treatment of the following diseases: 1. Severe psoriasis: including erythrodermic psoriasis and pustular psoriasis.