The effect of betamethasone dipropionate injectable on chronic bronchial asthma.

Betamethasone dipropionate was administered intramuscularly to fifty-one patients with chronic bronchial asthma. Good to excellent results were obtained in 96% of patients. Onset of action was rapid, and duration of action was prolonged. Adverse reactions were mild and transient. Decreases in early morning plasma cortisol levels were also transient with the levels returning to normal range by the end of the study in all but one patient.