Symbicort RTP400 mcg + 6 mcg, 200 mcg + 6 mcg, 100 mcg + 6 mcg% VolatilityBudesonide, Formoterol substance Budesonide, Formoterol dosage 400 mcg + 6 mcg, 200 mcg + 6 mcg, 100 mcg + 6 mcg