Betamethasone Sodium Phosphate and Betamethasone Acetate Injectable Suspension, USP
Anti-inflammatory, antirheumatic and antiallergic effects in the treatment of corticosteroid-responsive disorders : prompt therapeutic activity is achieved by betamethasone sodium phosphate, which is absorbed quickly after injection and sustained activity is provided by betamethasone acetate, which is only slightly soluble and becomes a repository for slow absorption, thereby controlling symptoms over a prolonged period