I have asthma, its mild and i only use a rescue inhaler. A couple of days ago i noticed that it was empty and i havent been to the doctor. Today i went to the gym and i really didnt expect anything to happen because i dont often have attacks, i overdid it on the olyptical machine and could feel myself tightening up. I ended up going home and using an expired albuterol inhaler (the only one i could find) but aparently its 5 yrs old. Hopefully i wont die. My airway seems to have opened some. I looked online for advice on expired inhalers and they basically said that chemicals break down after time and things can become either harmful or ineffective. Can anyone calm my nerves or give me any experiences they've had. Im aware none of you are doctors so im not looking for medical advice.