Asthma Inhalers, including the cost of each inhaler (click to enlarge the image).
Inhaled corticosteroid (ICS)
Relative binding affinity for glucocorticoid receptor (GR): mometasone > fluticasone > budesonide > triamcinolone.
Relative anti-inflammatory potency: mometasone = fluticasone > budesonide = beclomethasone > triamcinolone.
The only pregnancy category B inhaled steroid is budesonide. This is easy to remember:
B category in pregnancy
Budesonide - both inhaled and intranasal steroid
Proper techniques for the administration of inhaled medications to treat asthma - AAAAI - Ask the Expert, 2011.