Pharmacotherapy is certainly able to alleviate the course of many conditions, but with every drug there is a risk of various side effects. This is the case, for example, with glucocorticosteroids, which can lead to, among other things, hypertension and diabetes, as well as with chemotherapy treatment, which can result, for example, in hair loss. Recently, researchers decided to look into the risks that may be associated with the use of metformin.