Symbicort Turbuhaler is inhaled into the lungs for the treatment of asthma or Chronic Obstructive Pulmonary Disease (COPD). Symbicort Turbuhaler contains two active ingredients in one inhaler: budesonide and eformoterol.
I've been using this once a day for my asthma which I get during winter. Using the 400/12 dose it took about 3 days to work, but after that I didn't need the ventolin anymore. It definitely works for me