 [ Symptoms ] i was taking singular that has been changed to montelukast i do not have asthma should i be taking this [ Disease ] let is take this one step at a time first of all singulair is the brand name of the drug montelukast so your medication has not been changed it is just that you are now taking a generic drug whereas before you were taking the brand name product second montelukast is not an asthma medication it is made to treat seasonal allergies hay fever in adults montelukast belongs to a class of drugs called  leukotriene inhibitors  these medications work by blocking inflammation of tissue that has been exposed to a substance that usually causes an allergic reaction in a person so to answer your question if you have seasonal allergies and your doctor prescribed montelukast singulair to treat it then yes you may feel free to take it as directed if you feel the medication is not effective you can return to your doctor to see if there is something else you can try i hope this clears things up for you