Does Frequent Intake Of Celestamine Affect Kidneys?

hi! i have this allergy and i dont know where i get it, it just that i will feel itchiness in my whole body and after that i take celestamine and it cures my itchiness but after 3-4 days i feek itchy again and i will take again the medicine, my concern is will my frequent in take of celestamine might affect my kidney? thanks again for the advice