Changes in the metastasis of experimental tumors and in the antimetastatic effect of cytostatics in their pharmacological action on adrenergic processes

: Different pharmacologic drugs (isadrin, obsidan, phentolamine) changing adrenergic processes are shown to have different effect on the growth and development of lung metastases. An increase in the antimetastatic effect of some cytostatics is also observed in mice with Lewis carcinoma and melanoma B-16 under the influence of isadrin, a stimulator of beta-adrenoreceptors. In authors' opinion, isadrin changes microcirculation in lungs and prevents inhibition of the immune reactivity in animals with metastatic tumours, thus contributing to inhibition of the development and growth of metastases.