Hi, As utovlan(norethisterone)helps to regulate the healthy growth and normal shedding of the womb lining, it may be used in the treatment of menstrual disorders such as irregular or painful menstrual periods, premenstrual syndrome and endometriosis. It may also be used to postpone the onset of menstruation for special circumstances, such as if travelling or taking part in sporting event. You can take it without any problem despite having mild asthma. For asthma,you might require inhalational steroids,beta agonists,anticholinergics as MDI or rotahaler as a regular treatment. To decrease the inflammation of bronchi and bronchioles,you might be given oral antihistamines with mast cell stabilizers(montelukast) and steroids (prednisolone) with nebulization and frequently steam inhalation. You consult pulmonologist for further advise regarding asthma. Thanks and Regards,