How long is albuterol supposed to last? it seems like every 4 hours or so after taking 2 puffs i start coughing again. like clockwork.

Albuterol: Albuterol works for approximately 4-6 hours.If your are using it more than 4 times a day you must see your doctor to see if you need steroids to help your shortness of breath or possibly antibiotics if you have an underlying infection.

About right:: 4 hours is the usual duration of action. Of course, if you need it this often, your doctor will probably consider putting you on other meds as well.